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NSR database version of April 11, 2024.

Search: Author = K.Hagel

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2023JE02      Phys.Rev. C 107, 024601 (2023)

A.Jedele, K.Hagel, M.Q.Sorensen, B.Harvey, A.Abbott, J.Gauthier, A.Hannaman, A.A.Hood, Y.-W.Lui, L.McCann, A.B.McIntosh, L.A.McIntosh, S.Schultz, Z.Tobin, R.Wada, M.Youngs, S.Yennello

Investigating the time dependence of neutron-proton equilibration using molecular dynamics simulations

NUCLEAR REACTIONS 70Zn(70Zn, X), E=35 MeV/nucleon; analyzed experimental yields from 2017RO09 (Phys. Rev. C 95, 044604) and and 2017JE01 (Phys. Rev. Lett. 118, 062501); deduced yields charge distributions and mass distribution for heavy and light fragments, fragments velocity distribution, angular distributions, neutron-to-proton ratio in the fragments. Simulations using Constrained Molecular Dynamics (COMD) and Antisymmetrized Molecular Dynamics (AMD) codes, which simulate the collision dynamics by solving time-dependent wave functions. GEMINI code used for de-excitation process.

doi: 10.1103/PhysRevC.107.024601
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2023MC01      Phys.Rev. C 107, 024612 (2023)

A.B.McIntosh, K.Hagel, L.A.McIntosh, R.Wada, J.Gauthier, P.J.Cammarata, A.Keeler, A.Abbott, A.Hannaman, B.Harvey, A.Jedele, Y.W.Lui, L.W.May, M.Sorensen, M.Youngs, A.Zarrella, S.J.Yennello

Apparent temperatures of neutron-poor and neutron-rich compound nuclei

NUCLEAR REACTIONS 12C(78Kr, X), (86Kr, X), E=15, 25, 35 MeV/nucleon; measured reaction products, fusion-evaporation residues, time-of-flight; deduced charged particles multiplicity, temperature of the reaction systems, Albergo temperature for p, d, t, α, 3He, 6He. Comparison to previous measurements and GEMINI++ calculations. QTS (quadrupole-triplet spectrometer) coupled to FAUST array of 68 Si-CsI(Tl)/PD telescopes at Texas AM University Cyclotron Institute.

doi: 10.1103/PhysRevC.107.024612
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2022MC03      Nuovo Cim. C 45, 47 (2022)

A.B.McIntosh, K.Hagel, L.A.McIntosh, S.J.Yennello

Temperatures of compound nuclei produced in complete and incomplete fusion and the role of neutron excess

NUCLEAR REACTIONS 12C(86Kr, X), E=35 MeV/nucleon; measured reaction products; deduced the role of neutron excess in the nuclear equation of state, symmetry dependence of nuclear caloric curve, temperature. The TAMU Cyclotron Institute.

doi: 10.1393/ncc/i2022-22047-2
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2021HU01      Phys.Rev. C 103, 014601 (2021)

Y.Huang, H.Zheng, R.Wada, X.Liu, W.Lin, G.Qu, M.Huang, P.Ren, J.Han, A.Bonasera, K.Hagel, M.R.D.Rodrigues, S.Kowalski, T.Keutgen, M.Barbui, J.B.Natowitz

Nuclear temperature and its dependence on the source neutron-proton asymmetry deduced using the Albergo thermometer

NUCLEAR REACTIONS 112Sn(64Zn, X), E=40 MeV/nucleon; measured reaction products, intermediate mass fragments (IMFs), and yield distributions of secondary cold fragments and the reconstructed primary hot IMFs using ΔE-E telescope with an array of 16 single-crystal CsI(Tl) detectors, and 16 detectors of the Belgian-French neutron detector array DEMON for neutrons at K-500 superconducting cyclotron facility of Texas A and M University; deduced N/Z asymmetry dependence of nuclear temperature for nine Albergo thermometers for isotope ratios of 10Be, 11Be/10B, 11B, 12C, 13N/11Be, 12B, 10Be, 11Be/14N, 15N, 7Li, 7Be/11Be, 11B, 11B, 11C/11Be, 11B, 13C, 13N/11Be, 11B, 15N, 19O/11Be, 11B, 17O, 17F/11Be, 11B, 14C, 14N/12B, 12C. 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (70Zn, X), E=40 MeV/nucleon; measured primary hot intermediate mass fragments (IMFs) for application of experimental sequential decay correction from the apparent temperatures to the real ones. Comparison with antisymmetrized molecular dynamics (AMD) calculations using GEMINI code.

doi: 10.1103/PhysRevC.103.014601
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2021HU24      Phys.Rev. C 104, 044611 (2021)

Y.Huang, W.Lin, H.Zheng, R.Wada, A.Bonasera, Z.Chen, J.Han, R.Han, M.Huang, K.Hagel, T.Keutgen, X.Liu, Y.G.Ma, C.W.Ma, Z.Majka, G.Qu, L.Qin, P.Ren, G.Tian, J.Wang, Z.Yang, J.B.Natowitz

Experimental investigation of abnormal transverse flow enhancement of α particles in heavy-ion collisions

NUCLEAR REACTIONS 27Al, 48Ti, 58Ni(40Ar, X), E=47 MeV/nucleon from Texas A and M K500 cyclotron facility; measured reaction products, σ(θ) using 4π array NIMROD-ISiS, consisting of a charged particle array and Neutron Ball; deduced normalized charged particle multiplicity distributions, reduced impact parameters, average in-plane fragment transverse momentum for Z=1-5 fragments as function of rapidity, flow as a function of atomic number, two-particle azimuthal correlation functions, relative flow magnitude as function of atomic number, monotonically increasing trend as a function of fragment charge number, evidences for the non-existence of the abnormal α flow behavior in the heavy-ion collisions. Comparison with improved antisymmetrized molecular dynamics model calculations with Fermi motion (AMD-FM).

doi: 10.1103/PhysRevC.104.044611
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2020HA11      Phys.Rev. C 101, 034605 (2020)

A.Hannaman, A.B.McIntosh, A.Jedele, A.Abbott, J.Gauthier, K.Hagel, B.Harvey, Z.Kohley, Y.Lui, L.A.McIntosh, A.Rodriguez Manso, M.Sorensen, Z.Tobin, R.Wada, M.Youngs, S.J.Yennello

Isoscaling and nuclear reaction dynamics

NUCLEAR REACTIONS 70Zn(70Zn, X), 64Zn(64Zn, X), E=35 MeV/nucleon; measured reaction products were measured using the Neutron Ion Multidetector for Reaction Oriented Dynamics (NIMROD), yields and angular distributions of fragments (Z=4 to 8, Z=12 and Z>12) at the K500 Cyclotron facility of Texas A and M University; deduced isoscaling parameters α and β as a function of breakup angle in binary excited projectile-like fragment decays. Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.101.034605
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2020HA36      Phys.Rev. C 102, 064625 (2020)

B.Harvey, M.Youngs, A.B.McIntosh, A.Jedele, A.Abbott, J.Gauthier, K.Hagel, A.Hannaman, A.Hood, K.Krieble, Y.-W.Lui, L.A.McIntosh, A.Rodriguez Manso, M.Sorensen, Z.Tobin, R.Wada, A.Zarrella, S.J.Yennello

Correlation between time and angular alignment in molecular dynamics simulations of heavy ion collisions

NUCLEAR REACTIONS 70Zn(70Zn, X), E=35, 45 MeV/nucleon; analyzed yield of events as a function of impact parameter, angular alignment distributions, ratio of yields from the flipped peak to the dynamic peak as a function of the charge asymmetry of projectile-like fragments (PLF*) breakup, and angular alignment versus time using event tree method of analyzing molecular dynamics simulations, with constrained molecular dynamics (CoMD) model for accurate distributions of fragment masses and velocities.

doi: 10.1103/PhysRevC.102.064625
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2020HU09      Phys.Rev. C 101, 064603 (2020)

Y.Huang, W.Lin, H.Zheng, R.Wada, X.Liu, G.Qu, M.Huang, P.Ren, J.Han, M.R.D.Rodrigues, S.Kowalski, T.Keutgen, K.Hagel, M.Barbui, A.Bonasera, J.B.Natowitz

Probing the neutron-proton asymmetry dependence of the nuclear source temperature with light charged particles

NUCLEAR REACTIONS 112Sn(64Zn, X), (64Ni, X), E=40 MeV/nucleon; 124Sn, 58,64Ni, 197Au, 232Th(70Zn, X), (64Ni, X), E=40 MeV/nucleon; measured differential σ(θ) for light charged particles: neutrons, protons, deuterons, tritons, 3He and α particles in coincidence with intermediate mass fragments (IMFs) at different lab angle, and apparent temperatures using silicon E-ΔE detector telescope for the detection of IMFs, CsI detectors for light charged particle, and DEMON array for neutrons at the K-500 superconducting cyclotron of Texas A and M University; deduced dependence of nuclear temperature on source neutron-to-proton asymmetry. Comparison with statistical multifragmentation model (SMM), and with antisymmetrized molecular dynamics (AMD-Gemini) calculations.

doi: 10.1103/PhysRevC.101.064603
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2020NA39      Phys.Rev. C 102, 064621 (2020)

J.B.Natowitz, H.Pais, G.Ropke, J.Gauthier, K.Hagel, M.Barbui, R.Wada

Isotopic equilibrium constants for very low-density and low-temperature nuclear matter

NUCLEAR REACTIONS 241Pu(n, F)1n/1H/2H/3H/4H/3He/4He/5He/6He/7He/8He/9He/7Li/8Li/9Li/11Li/7Be/8Be/9Be/10Be/11Be/12Be/14Be/10B/11B/12B/14B/15B/17B/14C/15C/16C/17C/18C/19C/20C/15N/16N/17N/18N/19N/20N/21N/15O/19O/20O/21O/22O/24O/19F/20F/21F/22F/24F/24Ne/27Ne/24Na/27Na/28Na/30Na/27Mg/28Mg/30Mg/30Al/34Si/35Si/36Si, E=thermal; calculated equilibrium constants for light isotopes, relative yields of the H, He, and Be isotopes produced in the ternary fission of 242Pu. Comparison with available experimental data. Relativistic mean-field model, with a universal medium modification correction for the attractive σ meson coupling.

doi: 10.1103/PhysRevC.102.064621
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2019CA04      Phys.Rev. C 99, 014606 (2019)

X.G.Cao, E.J.Kim, K.Schmidt, K.Hagel, M.Barbui, J.Gauthier, S.Wuenschel, G.Giuliani, M.R.D.Rodriguez, S.Kowalski, H.Zheng, M.Huang, A.Bonasera, R.Wada, N.Blando, G.Q.Zhang, C.Y.Wong, A.Staszczak, Z.X.Ren, Y.K.Wang, S.Q.Zhang, J.Meng, J.B.Natowitz

Examination of evidence for resonances at high excitation energy in the 7 α disassembly of 28Si

NUCLEAR REACTIONS 12C(28Si, X), (28Si, 7α), E=35 MeV/nucleon; measured Eα, Iα, excitation functions for the α-conjugate exit channels using the 4π NIMROD-ISiS array for charged particle detection at the K500 superconducting cyclotron facility of Texas A and M. 28Si; deduced resonances at high excitation energies, shapes of 7α events in the de-excitation of projectile-like nuclei; calculated energies, J, π, configurations, quadrupole deformation of toroidal high-spin isomers using covariant functional PC-PK1 and DD-ME2.

doi: 10.1103/PhysRevC.99.014606
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2019LI57      Phys.Rev. C 100, 064601 (2019)

X.Liu, H.Zheng, R.Wada, W.Lin, M.Huang, P.Ren, G.Qu, J.Han, M.R.D.Rodrigues, S.Kowalski, T.Keutgen, K.Hagel, M.Barbui, A.Bonasera, J.B.Natowitz

Neutron-proton asymmetry dependence of nuclear temperature with intermediate mass fragments

NUCLEAR REACTIONS 70Zn, 112Sn(64Zn, X), 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), E=40 MeV/nucleon; measured reaction products, intermediate mass fragments (IMFs), light charged particles (LCPs), (LCP)(IMF)-coin, angular distributions using a Si detector telescope for IMFs and an array of 16 CsI(Tl) detectors for LCPs at the Texas A and M cyclotron facility; deduced multiplicity distributions for 14,16,18,20O, N/Z asymmetry dependence of the nuclear temperature. Comparison with previous experimental results, and with antisymmetrized molecular dynamics (AMD) and statistical multifragmentation model (SMM) simulations using the GEMINI code for AMD.

doi: 10.1103/PhysRevC.100.064601
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2019MA72      Phys.Rev. C 100, 044612 (2019)

A.Rodriguez Manso, A.B.McIntosh, J.Gauthier, K.Hagel, L.Heilborn, A.Jedele, Z.Kohley, A.Wakhle, A.Zarrella, S.J.Yennello

Dynamical ternary decays of excited projectile-like fragments

NUCLEAR REACTIONS 70Zn(70Zn, X), E=35 MeV/nucleon; measured reaction products using 4π charged-particle array NIMROD at the K500 Cyclotron at Texas A and M University; deduced normalized yields of fragments as function of Z, Dalitz plot for fragment sizing correlation, normalized velocity distributions and normalized angular distributions of fragments for the different rupture scenarios, correlation between the angles of the first and second breaks for each rupture scenario, and angular correlation between the relative velocities of fragments; investigated neutron-proton equilibration in dynamically deformed nuclear systems by analyzing composition of fragments produced from the projectile-like fragments (PLF*) in semiperipheral collisions.

doi: 10.1103/PhysRevC.100.044612
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2019WA06      Phys.Rev. C 99, 024616 (2019)

R.Wada, W.Lin, P.Ren, H.Zheng, X.Liu, M.Huang, K.Yang, K.Hagel

Experimental liquid-gas phase transition signals and reaction dynamics

NUCLEAR REACTIONS 27Al, 48Ti, 58Ni(40Ar, X), E=47 MeV/nucleon; analyzed experimental data for charged particles (p, d, t, 3He, α) using the 4π detector NIMROD at TAMU K500 super-conducting cyclotron, quasi-projectile particle kinetic energy spectra, quasi-projectile charge and mass distribution, charged particle multiplicity, and excitation energy distributions; deduced phase transition signals by the statistical multifragmentation model (SMM), quadrupole momentum fluctuation temperatures, specific heat capacity, multiplicity derivative, and normalized variance of maximum charge in quasi-projectiles.

doi: 10.1103/PhysRevC.99.024616
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2019ZE04      Acta Phys.Pol. B50, 579 (2019)

K.Zelga, Z.Majka, R.Planeta, Z.Sosin, A.Wieloch, M.Adamczyk, K.Lojek, M.Barbui, S.Wuenschel, K.Hagel, X.Cao, J.Natowitz, R.Wada, G.Giuliani, E.-J.Kim, H.Zheng, S.Kowalski

Dedicated ΔE-E Detector System for Searching Long-lived Heaviest Nuclei Deposited in Scintillators

doi: 10.5506/aphyspolb.50.579
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2018BA38      Phys.Rev. C 98, 044601 (2018)

M.Barbui, K.Hagel, J.Gauthier, S.Wuenschel, R.Wada, V.Z.Goldberg, R.T.deSouza, S.Hudan, D.Fang, X.-G.Cao, J.B.Natowitz

Searching for states analogous to the 12C Hoyle state in heavier nuclei using the thick target inverse kinematics technique

NUCLEAR REACTIONS 4He(20Ne, α), (20Ne, 2α), (20Ne, 3α), (20Ne, 4α), E=13 MeV/nucleon; measured Eα, α(θ), αα-coin, and differential σ(θ) for resonant scattering using ΔE-E telescopes and thick target inverse kinematics (TTIK) technique at K150 cyclotron facility of Texas A and M University. 8Be, 12C, 16O, 24Mg; deduced levels, J, π, multi-α condensed states, widths, evidence for a level in 16O at 15.2 MeV analogous to Hoyle state in 12C. Comparison with PACE4 and HIPSE simulations, and with experimental results.

doi: 10.1103/PhysRevC.98.044601
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018MA61      Acta Phys.Pol. B49, 1801 (2018)

Z.Majka, R.Planeta, Z.Sosin, A.Wieloch, K.Zelga, M.Adamczyk, K.Pelczar, M.Barbui, S.Wuenschel, K.Hagel, X.Cao, E.-J.Kim, J.Natowitz, R.Wada, H.Zheng, G.Giuliani, S.Kowalski

A Novel Experimental Setup for Rare Events Selection and Its Potential Application to Super-heavy Elements Search

doi: 10.5506/APhysPolB.49.1801
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2018MA62      Phys.Rev. C 98, 044602 (2018)

L.W.May, A.Wakhle, A.B.McIntosh, Z.Kohley, S.Behling, A.Bonasera, G.Bonasera, P.Cammarata, K.Hagel, L.Heilborn, A.Jedele, A.Raphelt, A.Rodriguez Manso, G.Souliotis, R.Tripathi, M.D.Youngs, A.Zarrella, S.J.Yennello

Neutron-proton equilibration in 35 MeV/υ collisions of 64, 70Zn + 64, 70Zn and 64Zn, 64Ni + 64Zn, 64Ni quantified using triplicate probes

NUCLEAR REACTIONS 64,70Zn(70Zn, X), (64Zn, X), 64Zn, 64Ni(64Zn, X), (64Ni, X), E=35 MeV/nucleon; measured reaction products, isobaric yield ratios, isospin transport ratios of quasiparticle fragments using 4π NIMROD array for fragment detection at K150 cyclotron facility of Texas A and M University; deduced fractional neutron-proton equilibration width, quasiprojectile asymmetry, isoscaling parameter. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.98.044602
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2018WU05      Phys.Rev. C 97, 064602 (2018)

S.Wuenschel, K.Hagel, M.Barbui, J.Gauthier, X.G.Cao, R.Wada, E.J.Kim, Z.Majka, R.Planeta, Z.Sosin, A.Wieloch, K.Zelga, S.Kowalski, K.Schmidt, C.Ma, G.Zhang, J.B.Natowitz

Experimental survey of the production of α-decaying heavy elements in 238U+232Th reactions at 7.5-6.1 MeV/nucleon

NUCLEAR REACTIONS 232Th(238U, X), (197Au, X), E=6.1 MeV/nucleon; measured reaction products, Eα, α(θ), Eα(t) of reaction product decays, (recoil)α-coin, differential σ(θ) using Big-Sol Superconducting-Solenoid Time of Flight Spectrometer at Texas A and M; deduced α-decay and spontaneous fission T1/2 of recoils and α-decay T1/2 of daughter nuclides, and of correlated pairs, thick target differential cross sections. Comparison with previous experimental results, and theoretical predictions.

doi: 10.1103/PhysRevC.97.064602
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2017JE01      Phys.Rev.Lett. 118, 062501 (2017)

A.Jedele, A.B.McIntosh, K.Hagel, M.Huang, L.Heilborn, Z.Kohley, L.W.May, E.McCleskey, M.Youngs, A.Zarrella, S.J.Yennello

Characterizing Neutron-Proton Equilibration in Nuclear Reactions with Subzeptosecond Resolution

NUCLEAR REACTIONS 70Zn(70Zn, X), E=35 MeV/nucleon; measured reaction products, Eα, Iα; deduced fragment yields, neutron-proton equilibration. Comparison with available data.

doi: 10.1103/PhysRevLett.118.062501
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2017LI15      Phys.Rev. C 95, 044601 (2017)

X.Liu, W.Lin, M.Huang, R.Wada, J.Wang, A.Bonasera, H.Zheng, Z.Chen, S.Kowalski, T.Keutgen, K.Hagel, L.Qin, J.B.Natowitz, T.Materna, P.K.Sahu, M.Barbui, C.Bottosso, M.R.D.Rodrigues

Chemical potential and symmetry energy for intermediate-mass fragment production in heavy ion reactions near the Fermi energy

NUCLEAR REACTIONS 112,124Sn, 58,64Ni, 197Au, 232Th(64Ni, X), (70Zn, X), 112Sn(64Zn, X), E=40 MeV/nucleon; measured mass fragments (IMFs), protons, deuterons, tritons, 3He, and α particles using detector telescopes, neutrons were detected using 16 detectors of the DEMON array, yields of light charged particles (LCPs) in coincidence with IMFs using an array of 16 single crystal CsI(Tl) detectors, and σ(θ) using K-500 superconducting cyclotron facility at Texas A and M; deduced ratios of neutron-proton differential chemical potential values to temperature, density dependent symmetry energy. Comparison with quantum statistical model, and with previous experimental data.

doi: 10.1103/PhysRevC.95.044601
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2017RO09      Phys.Rev. C 95, 044604 (2017)

A.Rodriguez Manso, A.B.McIntosh, A.Jedele, K.Hagel, L.Heilborn, Z.Kohley, L.W.May, A.Zarrella, S.J.Yennello

Detailed characterization of neutron-proton equilibration in dynamically deformed nuclear systems

NUCLEAR REACTIONS 70Zn(70Zn, X), 64Zn(64Zn, X), (64Ni, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured heavy fragment (HF) and light fragment (LF) using the NIMROD detector system at the K-500 cyclotron facility of Texas A and M; deduced normalized yields as functions of velocity, angular in-plane and out-of-plane distributions, average compositions as function of the decay alignment, rate constants as function of the atomic number, time dependence of neutron-proton equilibration in dynamically deformed nuclear systems. Comparison to a statistical model, and GEMINI++ simulations.

doi: 10.1103/PhysRevC.95.044604
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2017SC09      Phys.Rev. C 95, 054618 (2017)

K.Schmidt, X.Cao, E.J.Kim, K.Hagel, M.Barbui, J.Gauthier, S.Wuenschel, G.Giuliani, M.R.D.Rodrigues, H.Zheng, M.Huang, N.Blando, A.Bonasera, R.Wada, C.Botosso, G.Liu, G.Viesti, S.Moretto, G.Prete, S.Pesente, D.Fabris, Y.El Masri, T.Keutgen, S.Kowalski, A.Kumar, G.Zhang, J.B.Natowitz

α-conjugate neck structures in the collisions of 35 MeV/nucleon 40Ca with 40Ca

NUCLEAR REACTIONS 40Ca(40Ca, X), E=35 MeV/nucleon; measured reaction products, yields of the heaviest fragments, average excitation energy vs exit channel separation energy, events for α particles and α-conjugate nuclei, excitation energy distributions, excitation functions, and projectile-like fragments in the exit channels using the NIMROD-ISiS 4π array at the K500 superconducting cyclotron of the Texas A and M University; deduced hierarchy effect, dominance of α-conjugate exit channels in a subset of events with a total α-conjugate A=40 and Z=20, source-frame-invariant velocity plots for α-like and two fragment α-like exit channels, parallel velocity distributions for α-conjugate exit channels, de-excitation of α-conjugate nuclei, and the dynamics of collisions leading to projectile-like fragment exit channels.

doi: 10.1103/PhysRevC.95.054618
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2017YO02      Nucl.Phys. A962, 61 (2017)

M.Youngs, A.B.McIntosh, K.Hagel, L.Heilborn, M.Huang, A.Jedele, Z.Kohley, L.W.May, E.McCleskey, A.Zarrella, S.J.Yennello

Observation of different isoscaling behavior between emitted fragments and residues

NUCLEAR REACTIONS 70Zn(70Zn, x), E=35 MeV/nucleon;76Zn(76Zn, x), E=35 MeV/nucleon; measured reaction products; deduced yield ratios vs energy of emitted particles for Z=5-12 and separately for fixed N-Z, slopes of the fit lines, isoscaling parameters for light particles and projectile-like fragments.

doi: 10.1016/j.nuclphysa.2017.03.005
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2016LA10      Phys.Rev. C 93, 045808 (2016)

D.Lattuada, M.Barbarino, A.Bonasera, W.Bang, H.J.Quevedo, M.Warren, F.Consoli, R.De Angelis, P.Andreoli, S.Kimura, G.Dyer, A.C.Bernstein, K.Hagel, M.Barbui, K.Schmidt, E.Gaul, M.E.Donovan, J.B.Natowitz, T.Ditmire

Model-independent determination of the astrophysical S factor in laser-induced fusion plasmas

NUCLEAR REACTIONS 2H(d, n)3He, 3He(d, p)4He, E(cm)=5-500 keV; measured deuterium ion energy density distribution from time-of-flight, neutron yields from d+d fusion, angular distribution of neutrons, yield of 14.7-MeV protons using various scintillation detectors; deduced model-independent astrophysical factor S(E). Laser-induced fusion plasmas using Texas Petawatt Laser (TPW). Comparison with previous experimental data. Relevance to primordial abundances in Big Bang nucleosynthesis (BBN) models, and plasma physics.

doi: 10.1103/PhysRevC.93.045808
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2236.


2015HE13      Phys.Rev. C 91, 045805 (2015)

M.Hempel, K.Hagel, J.Natowitz, G.Ropke, S.Typel

Constraining supernova equations of state with equilibrium constants from heavy-ion collisions

NUCLEAR REACTIONS 112,124Sn(40Ar, X), (64Zn, X), E=47 MeV/nucleon; analyzed experimental data obtained using NIMROD 4π multidetector at Texas A and M University for yields of light particles; deduced temperature and densities, equilibrium constants (ECs) for α, d, t, 3He, mass fraction of heavy nuclei. Cluster formation in heavy-ion collisions, and equation of state (EOS) of warm and dense nuclear matter. Quantum statistical (QS) approach.

doi: 10.1103/PhysRevC.91.045805
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2015LI01      Nucl.Phys. A933, 290 (2015)

X.Liu, W.Lin, R.Wada, M.Huang, P.Ren, Z.Chen, J.Wang, G.Q.Xiao, S.Zhang, R.Han, J.Liu, F.Shi, M.R.D.Rodrigues, S.Kowalski, T.Keutgen, K.Hagel, M.Barbui, A.Bonasera, J.B.Natowitz, H.Zheng

Reconstructed primary fragments and symmetry energy, temperature and density of the fragmenting source in 64Zn + 112Sn at 40 MeV/nucleon

NUCLEAR REACTIONS 112Sn(64Zn, x), E=40 MeV/nucleon; calculated, analyzed cold fragments isotopic multiplicity distributions, yields using AMD; deduced temperature, temperature vs fragment mass, symmetry energy.

doi: 10.1016/j.nuclphysa.2014.09.077
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2015MA46      Phys.Rev. C 92, 024605 (2015)

J.Mabiala, H.Zheng, A.Bonasera, P.Cammarata, K.Hagel, L.Heilborn, Z.Kohley, L.W.May, A.B.McIntosh, M.D.Youngs, A.Zarrella, S.J.Yennello

Novel technique to extract experimental symmetry free energy information for nuclear matter

NUCLEAR REACTIONS 64Zn(64Zn, X), 70Zn(70Zn, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured charged particles and free neutron spectra using 4π NIMROD-ISiS array at K-500 cyclotron facility of Texas A and M University; deduced symmetry free energy coefficient as a function of fragment's neutron-proton asymmetry, temperature and density. Data fitted with Landau's equations.

doi: 10.1103/PhysRevC.92.024605
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2014HA05      Eur.Phys.J. A 50, 39 (2014)

K.Hagel, J.B.Natowitz, G.Ropke

The equation of state and symmetry energy of low-density nuclear matter

NUCLEAR STRUCTURE 2,3H, 3,4He; calculated cluster mass excess, binding energy in low-density symmetric nuclear matter using RMF.

doi: 10.1140/epja/i2014-14039-4
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2014LI03      Phys.Rev. C 89, 021601 (2014)

W.Lin, X.Liu, M.R.D.Rodrigues, S.Kowalski, R.Wada, M.Huang, S.Zhang, Z.Chen, J.Wang, G.Q.Xiao, R.Han, Z.Jin, J.Liu, F.Shi, T.Keutgen, K.Hagel, M.Barbui, C.Bottosso, A.Bonasera, J.B.Natowitz, E.J.Kim, T.Materna, L.Qin, P.K.Sahu, K.J.Schmidt, S.Wuenschel, H.Zheng

Novel determination of density, temperature, and symmetry energy for nuclear multifragmentation through primary fragment-yield reconstruction

NUCLEAR REACTIONS 112Sn(64Zn, X), E=40 MeV/nucleon; measured yield distributions of intermediate mass fragments Z=3-18 at Texas A and M cyclotron facility using CsI(Tl) detectors for light-charged particles and DEMON array for neutrons; deduced density, temperature, and symmetry energy coefficient using antisymmetrized molecular dynamics (AMD) simulations.

doi: 10.1103/PhysRevC.89.021601
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2014LI33      Phys.Rev. C 90, 014604 (2014)

X.Liu, W.Lin, R.Wada, M.Huang, Z.Chen, G.Q.Xiao, S.Zhang, R.Han, M.H.Zhao, P.Ren, Z.Jin, J.Liu, F.Shi, J.B.Natowitz, A.Bonasera, K.Hagel, H.Zheng, M.Barbui, K.Schmidt

Mass dependence of transverse flow in heavy ion collisions at intermediate energies

NUCLEAR REACTIONS 40Ca(40Ca, X), E=35 MeV/nucleon; measured reaction product spectra, charged particle distributions using NIMROD-ISiS detector system at Texas A-M cyclotron facility; deduced Average in-plane momenta, transverse flow for Z=1-9 particles. Comparison with constrained molecular dynamics (CoMD) simulations.

doi: 10.1103/PhysRevC.90.014604
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2014LI44      Phys.Rev. C 90, 044603 (2014)

W.Lin, X.Liu, M.R.D.Rodrigues, S.Kowalski, R.Wada, M.Huang, S.Zhang, Z.Chen, J.Wang, G.Q.Xiao, R.Han, Z.Jin, J.Liu, P.Ren, F.Shi, T.Keutgen, K.Hagel, M.Barbui, C.Bottosso, A.Bonasera, J.B.Natowitz, T.Materna, L.Qin, P.K.Sahu, H.Zheng

Experimental reconstruction of primary hot isotopes and characteristic properties of the fragmenting source in heavy-ion reactions near the Fermi energy

NUCLEAR REACTIONS 112Sn(64Zn, X), E=40 MeV/nucleon; measured fragment spectra, E(n), I(n), double-differential σ(E, θ) for fragments at Texas A and M K-500 superconducting cyclotron facility; deduced isotopic and neutron multiplicity distributions, cold-isotope distributions, absolute multiplicities of reconstructed hot isotopes, symmetry energy coefficient. Monte Carlo simulations. Comparison with antisymmetrized molecular dynamics (AMD) transport model simulations.

doi: 10.1103/PhysRevC.90.044603
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2014MA28      Acta Phys.Pol. B45, 279 (2014)

Z.Majka, M.Barbui, F.Becchetti, G.Chubaryan, M.Cinausero, D.Fabris, G.Giuliani, H.Griffin, K.Hagel, J.Kallunkathariyil, E-J.Kim, S.Kowalski, P.Lasko, M.Lunardon, T.Materna, S.Moretto, R.Murthy, J.Natowitz, G.Nebbia, T.O'Donnel, S.Pesente, R.Planeta, G.Prete, L.Quin, V.Rizzi, P.Sahu, K.Schmidt, G.Souliotis, Z.Sosin, G.Viesti, R.Wada, J.Wang, A.Wieloch, S.Wuenschel, H.Zheng

Experimental Search for Super and Hyper Heavy Nuclei at Cyclotron Institute Texas A and M University

doi: 10.5506/APhysPolB.45.279
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2014MA68      Phys.Rev. C 90, 027602 (2014)

J.Mabiala, H.Zheng, A.Bonasera, P.Cammarata, K.Hagel, L.Heilborn, Z.Kohley, L.W.May, A.B.McIntosh, M.D.Youngs, A.Zarrella, S.J.Yennello

Coulomb corrections to experimental temperatures and densities in Fermi-energy heavy-ion collisions

NUCLEAR REACTIONS 64Zn(64Zn, X), 70Zn(70Zn, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured charged particle and neutron spectra using the 4p NIMROD-ISiS array at Texas A-M cyclotron facility; deduced temperatures and densities as function of excitation energy per nucleon with and without Coulomb correction, and for different values of neutron-proton asymmetry, correlation between density and temperature.

doi: 10.1103/PhysRevC.90.027602
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2014MC02      Eur.Phys.J. A 50, 35 (2014)

A.B.McIntosh, J.Mabiala, A.Bonasera, P.Cammarata, K.Hagel, Z.Kohley, L.Heilborn, L.W.May, P.Marini, A.Raphelt, G.A.Souliotis, S.Wuenschel, A.Zarrella, H.Zheng, S.J.Yennello

How much cooler would it be with some more neutrons? - Exploring the asymmetry dependence of the nuclear caloric curve and the liquid-gas phase transition

NUCLEAR REACTIONS 64Ni(64Ni, X), E=35 MeV/nucleon;64Zn(64Zn, X), E=35 MeV/nucleon;70Zn(70Zn, X), E=35 MeV/nucleon; calculated temperature vs E*/mass using light charged particle emission (proton to 9Be) and three thermometer methods; deduced thermodynamic quantities.

doi: 10.1140/epja/i2014-14035-8
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2014WU06      Phys.Rev. C 90, 011601 (2014), Erratum Phys.Rev. C 90, 019903 (2014)

S.Wuenschel, H.Zheng, K.Hagel, B.Meyer, M.Barbui, E.J.Kim, G.Ropke, J.B.Natowitz

Nucleation and cluster formation in low-density nucleonic matter: A mechanism for ternary fission

NUCLEAR REACTIONS 241Pu(n, F), E=thermal; calculated ternary fission yields as a function of mass and charge of products of A<40. Nucleation and cluster formation in the low-density neck between the two large fragments. Nuclear statistical equilibrium (NSE) calculations. Comparison with experimental data. 242Pu(SF); plotted experimental relative yields of ternary cluster isotopes.

doi: 10.1103/PhysRevC.90.011601
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2013BA43      Phys.Rev.Lett. 111, 082502 (2013)

M.Barbui, W.Bang, A.Bonasera, K.Hagel, K.Schmidt, J.B.Natowitz, R.Burch, G.Giuliani, M.Barbarino, H.Zheng, G.Dyer, H.J.Quevedo, E.Gaul, A.C.Bernstein, M.Donovan, S.Kimura, M.Mazzocco, F.Consoli, R.De Angelis, P.Andreoli, T.Ditmire

Measurement of the Plasma Astrophysical S Factor for the 3He(d, p)4He Reaction in Exploding Molecular Clusters

NUCLEAR REACTIONS 3He(d, p), E(cm)<300 keV; measured reaction products, TOF, Ep, Ip; deduced S-factors, σ, first measurement in the keV energy range. Comparison with available data.

doi: 10.1103/PhysRevLett.111.082502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2231.


2013MA06      Phys.Rev. C 87, 017603 (2013)

J.Mabiala, A.Bonasera, H.Zheng, A.B.McIntosh, L.W.May, P.Cammarata, Z.Kohley, K.Hagel, L.Heilborn, A.Raphelt, G.A.Souliotis, A.Zarrella, S.J.Yennello

Investigation of the nuclear phase transition using the Landau free-energy approach

NUCLEAR REACTIONS 64Zn(64Zn, X), 64Ni(64Ni, X), 70Zn(70Zn, X), E=35 MeV/nucleon; analyzed fragment yields, pairing coefficients for N=Z nuclei, temperature of quasiprojectile (QP) sources, dependence of nuclear equation of state on the proton and neutron concentration of the fragmenting system. Landau free-energy approach.

doi: 10.1103/PhysRevC.87.017603
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2013MA09      Phys.Rev. C 87, 024603 (2013)

P.Marini, A.Bonasera, G.A.Souliotis, P.Cammarata, S.Wuenschel, R.Tripathi, Z.Kohley, K.Hagel, L.Heilborn, J.Mabiala, L.W.May, A.B.McIntosh, S.J.Yennello

Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

NUCLEAR REACTIONS 58Ni(78Kr, X), 64Ni(86Kr, X), E=35 MeV/nucleon; calculated symmetry energy coefficients, isoscaling and isobaric yield ratios of secondary fragments. Statistical multifragmentation model (SMM). Comparison with experimental data.

doi: 10.1103/PhysRevC.87.024603
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2013MC03      Phys.Rev. C 87, 034617 (2013)

A.B.McIntosh, A.Bonasera, Z.Kohley, P.J.Cammarata, K.Hagel, L.Heilborn, J.Mabiala, L.W.May, P.Marini, A.Raphelt, G.A.Souliotis, S.Wuenschel, A.Zarrella, S.J.Yennello

Using light charged particles to probe the asymmetry dependence of the nuclear caloric curve

NUCLEAR REACTIONS 70Zn(70Zn, X), 64Zn(64Zn, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured charged particle (proton, deuteron, triton, 3,4He), neutron spectra, momentum quadrupole fluctuation temperatures using NIMROD-ISiS 4π detector array at Texas AM; deduced caloric curves for light charged particles, Albergo yield ratio temperatures, dependence of nuclear temperatures on neutron-proton asymmetry. Momentum quadrupole fluctuation (MQF) thermometer.

doi: 10.1103/PhysRevC.87.034617
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2013RO21      Phys.Rev. C 88, 024609 (2013)

G.Ropke, S.Shlomo, A.Bonasera, J.B.Natowitz, S.J.Yennello, A.B.McIntosh, J.Mabiala, L.Qin, S.Kowalski, K.Hagel, M.Barbui, K.Schmidt, G.Giuliani, H.Zheng, S.Wuenschel

Density determinations in heavy ion collisions

doi: 10.1103/PhysRevC.88.024609
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2013RO25      Phys.Rev. C 88, 034605 (2013)

M.R.D.Rodrigues, W.Lin, X.Liu, M.Huang, S.Zhang, Z.Chen, J.Wang, R.Wada, S.Kowalski, T.Keutgen, K.Hagel, M.Barbui, C.Bottosso, A.Bonasera, J.B.Natowitz, T.Materna, L.Qin, P.K.Sahu, K.J.Schmidt

Experimental reconstruction of excitation energies of primary hot isotopes in heavy ion collisions near the Fermi energy

NUCLEAR REACTIONS 112Sn(64Zn, X), E=40 MeV/nucleon; measured spectra of intermediate mass fragments (IMFs), light particles, neutrons, protons, deuterons, and α in singles and coincidence, double-differential σ(θ) from n(fragment)-, p(fragment)-, α(fragment)-, d(fragment)-coin spectra using various charged-particle detector systems and DEMON neutron detector at Texas A-M facility; deduced multiplicities of the evaporated light particles from Z=3-14, excitation energies of the primary hot isotopes employing a Monte Carlo method. Comparison with antisymmetrized molecular dynamics (AMD) and statistical multifragmentation model (SMM) simulations.

doi: 10.1103/PhysRevC.88.034605
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2012HA04      Phys.Rev.Lett. 108, 062702 (2012)

K.Hagel, R.Wada, L.Qin, J.B.Natowitz, S.Shlomo, A.Bonasera, G.Ropke, S.Typel, Z.Chen, M.Huang, J.Wang, H.Zheng, S.Kowalski, C.Bottosso, M.Barbui, M.R.D.Rodrigues, K.Schmidt, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka

Experimental Determination of In-Medium Cluster Binding Energies and Mott Points in Nuclear Matter

NUCLEAR REACTIONS 112,124Sn(40Ar, X), (64Zn, X), E=47 MeV/nucleon; measured reaction products, Eα, Iα. 2,3H, 3,4He; deduced temperature and density dependence, binding energies, Pauli blocking effects in a quantum statistical approach.

doi: 10.1103/PhysRevLett.108.062702
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2012KO22      Phys.Rev. C 85, 064605 (2012)

Z.Kohley, M.Colonna, A.Bonasera, L.W.May, S.Wuenschel, M.Di Toro, S.Galanopoulos, K.Hagel, M.Mehlman, W.B.Smith, G.A.Souliotis, S.N.Soisson, B.C.Stein, R.Tripathi, S.J.Yennello, M.Zielinska-Pfabe

Sensitivity of intermediate mass fragment flows to the symmetry energy

NUCLEAR REACTIONS 70Zn(70Zn, X), 64Zn(64Zn, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured charged particle and neutron spectra, and intermediate mass fragment transverse flow using NIMROD-ISiS array and 4π TAMU Neutron Ball at Texas AM. Comparison with Antisymmetrized molecular dynamics (AMD), constrained molecular dynamics (CoMD), and stochastic mean-field model (SFM) calculations. Sensitivity of the model to the nEoS.

doi: 10.1103/PhysRevC.85.064605
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2012KO33      Phys.Rev. C 86, 044605 (2012)

Z.Kohley, A.Bonasera, S.Galanopoulos, K.Hagel, L.W.May, A.B.McIntosh, B.C.Stein, G.A.Souliotis, R.Tripathi, S.Wuenschel, S.J.Yennello

Correlations with projectile-like fragments and emission order of light charged particles

NUCLEAR REACTIONS 70Zn(70Zn, X), 64Zn(64Zn, X), 64Ni(64Ni, X), E=35 MeV/nucleon; measured particle spectra, energy loss, total energy, mass fragment yield using 4π NIMROD-ISiS array at Texas A scaled rapidity. Comparison with Monte Carlo simulation. Classical molecular dynamics (CMD) model. Constrained molecular dynamics (CoMD) model calculations.

doi: 10.1103/PhysRevC.86.044605
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2012MA08      Phys.Rev. C 85, 034617 (2012)

P.Marini, A.Bonasera, A.McIntosh, R.Tripathi, S.Galanopoulos, K.Hagel, L.Heilborn, Z.Kohley, L.W.May, M.Mehlman, S.N.Soisson, G.A.Souliotis, D.V.Shetty, W.B.Smith, B.C.Stein, S.Wuenschel, S.J.Yennello

Constraining the symmetry term in the nuclear equation of state at subsaturation densities and finite temperatures

NUCLEAR REACTIONS 64Zn(64Zn, X), 70Zn(70Zn, X), 64Ni, (64Ni, X), E=35 MeV/nucleon; measured charged-particle spectra using 4π NIMROD-ISiS array and Neutron Ball at Texas A reconstructed quasiprojectile distributions; deduced isotopic and isobaric yield ratios, isoscaling parameter, symmetry energy (enthalpy) coefficient. isoscaling, m-scaling, and the isobaric yield ratio methods for analysis of data.

doi: 10.1103/PhysRevC.85.034617
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2012QI06      Phys.Rev.Lett. 108, 172701 (2012)

L.Qin, K.Hagel, R.Wada, J.B.Natowitz, S.Shlomo, A.Bonasera, G.Ropke, S.Typel, Z.Chen, M.Huang, J.Wang, H.Zheng, S.Kowalski, M.Barbui, M.R.D.Rodrigues, K.Schmidt, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka, Y.G.Ma

Laboratory Tests of Low Density Astrophysical Nuclear Equations of State

NUCLEAR REACTIONS 112,124Sn(40Ar, X), (64Zn, X)2H/3H/3He/4He, E=47 MeV/nucleon; measured reaction products, Eα, Iα; deduced yields, equilibrium constants for α particle production. Astrophysical equation of state calculations.

doi: 10.1103/PhysRevLett.108.172701
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2012WA20      Phys.Rev. C 85, 064618 (2012)

R.Wada, K.Hagel, L.Qin, J.B.Natowitz, Y.G.Ma, G.Ropke, S.Shlomo, A.Bonasera, S.Typel, Z.Chen, M.Huang, J.Wang, H.Zheng, S.Kowalski, C.Bottosso, M.Barbui, M.R.D.Rodrigues, K.Schmidt, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka

Nuclear matter symmetry energy at 0.03 ≤ ρ/ρ0

NUCLEAR REACTIONS 112,124Sn(40Ar, X), (64Zn, X), E=47 MeV/nucleon; measured charged particle and neutron spectra and multiplicity; deduced coalescence parameters and model volumes as a function of surface velocity, nuclear temperature, density, isoscaling parameter, symmetry free energy and symmetry entropy versus density. NIMROD multidetector at Texas A

doi: 10.1103/PhysRevC.85.064618
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2011BA51      J.Phys.:Conf.Ser. 312, 082012 (2011)

M.Barbui, K.Hagel, J.B.Natowitz, A.Bonasera, R.Wada, P.K.Sahu, T.Materna, Z.Chen, L.Quin, G.A.Souliotis, G.Chubaryan, D.Fabris, M.Lunardon, M.Morando, S.Moretto, G.Nebbia, S.Pesente, G.Viesti, F.Bocci, M.Cinausero, V.Rizzi, G.Prete, S.Kowalski, Z.Majka, A.Wieloch, F.D.Becchetti, T.W.O'Donnel, H.Griffin

Search for Heavy and Superheavy systems in 197Au + 232Th Collisions near the Coulomb Barrier

NUCLEAR REACTIONS 232Th(197Au, X), E=7.5 MeV/nucleon; measured yields; calculated yields at 6, 6.75, 7.5 MeV/nucleon using constrained molecular dynamics.

doi: 10.1088/1742-6596/312/4/082012
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2011KO17      Phys.Rev. C 83, 044601 (2011)

Z.Kohley, L.W.May, S.Wuenschel, M.Colonna, M.Di Toro, M.Zielinska-Pfabe, K.Hagel, R.Tripathi, A.Bonasera, G.A.Souliotis, D.V.Shetty, S.Galanopoulos, M.Mehlman, W.B.Smith, S.N.Soisson, B.C.Stein, S.J.Yennello

Transverse collective flow and midrapidity emission of isotopically identified light charged particles

NUCLEAR REACTIONS 64Ni(64Ni, X), 64Zn(64Zn, X), 70Zn(70Zn, X), E=35 MeV/nucleon; measured particle spectra and yields of light-charged particles (ZA=1-12) using 4π NIMROD-ISiS array; deduced rapidity distribution, transverse flow and average in-plane momentum. Comparison with stochastic mean-field (SMF) model.

doi: 10.1103/PhysRevC.83.044601
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2011KO62      J.Phys.:Conf.Ser. 312, 082030 (2011)

Z.Kohley, L.W.May, S.Wuenschel, A.Bonasera, K.Hagel, R.Tripathi, R.Wada, G.A.Souliotis, D.V.Shetty, S.Galanopoulos, M.Mehlman, W.B.Smith, S.N.Soisson, B.C.Stein, S.J.Yennello

Intermediate Mass Fragment Flow as a Probe to the Nuclear Equation of State

NUCLEAR REACTIONS 64Ni(64Ni, X), E=35 MeV/nucleon;64Zn(64Zn, X), E=35 MeV/nucleon;70Zn(70Zn, X), E=35 MeV/nucleon; measured En, In(θ), E(fragment), I(fragment, θ), Z(fragment); deduced intermediate-mass fragments transverse flow using AMD with soft and stiff symmetry energy. Compared to data.

doi: 10.1088/1742-6596/312/4/082030
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2011NA20      Int.J.Mod.Phys. E20, 987 (2011)

J.B.Natowitz, K.Hagel, R.Wada, L.Qin, Z.Chen, P.Sahu, G.Ropke, S.Kowalski, C.Bottosso, S.Shlomo, M.Barbui, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka

Clustered low density nuclear matter in near Fermi energy collisions

doi: 10.1142/S0218301311019118
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2011RO57      J.Phys.:Conf.Ser. 312, 082009 (2011)

M.R.D.Rodrigues, R.Wada, K.Hagel, M.Huang, Z.Chen, S.Kowalski, T.Keutgen, J.B.Natowitz, M.Barbui, A.Bonasera, K.Schmidt, J.Wang, L.Qin, T.Materna, P.K.Sahu

Neutron multiplicity from primary hot fragments produced in heavy ion reactions near Fermi energy

NUCLEAR REACTIONS 112Sn(64Zn, X), E=40 MeV/nucleon; measured E(fragment), I(fragment, θ), En, In(θ), (fragment)n-coin; measured neutron multiplicity in coincidence with 12C vs angle between them.

doi: 10.1088/1742-6596/312/4/082009
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2011TR03      Phys.Rev. C 83, 054609 (2011)

R.Tripathi, A.Bonasera, S.Wuenschel, L.W.May, Z.Kohley, G.A.Souliotis, S.Galanopoulos, K.Hagel, D.V.Shetty, K.Huseman, S.N.Soisson, B.C.Stein, S.J.Yennello

Analysis of fragment yield ratios in the nuclear phase transition

NUCLEAR REACTIONS 58,64Ni(78Kr, X), (86Kr, X), E=35 MeV/nucleon; measured fragment yield ratios; analyzed data using the Landau free energy approach. Nuclear liquid-gas phase transition.

doi: 10.1103/PhysRevC.83.054609
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2011TR10      J.Phys.:Conf.Ser. 312, 082043 (2011)

R.Tripathi, A.Bonasera, S.Wuenschel, L.W.May, Z.Kohley, G.A.Souliotis, S.Galanopoulos, K.Hagel, D.V.Shetty, K.Huseman, S.N.Soisson, B.C.Stein, S.J.Yennello

Investigation of critical behaviour from nuclear fragment yield ratios

NUCLEAR REACTIONS 58,64Ni(78Kr, X), (86Kr, X), E=35 MeV/nucleon; measured charged particles using NIMROD-ISiS, En, In using neutron ball; deduced yields vs isospin asymmetry, symmetry energy coefficient vs excitation energy.

doi: 10.1088/1742-6596/312/4/082043
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2010CH21      Phys.Rev. C 81, 064613 (2010)

Z.Chen, S.Kowalski, M.Huang, R.Wada, T.Keutgen, K.Hagel, A.Bonasera, J.B.Natowitz, T.Materna, L.Qin, P.K.Sahu, J.Wang

Isocaling and the symmetry energy in the multifragmentation regime of heavy-ion collisions

NUCLEAR REACTIONS 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (64Zn, X), (70Zn, X), E=40 MeV/nucleon; measured yields of 10,11,12,13,14,15,16C and 23,24,25,26,27,28,29Mg, ratio of symmetry energy coefficient to temperature as a function of atomic number of the fragment. Extracted isoscaling parameters α and β as a function of Z from 150 different reaction combinations. Comparison with antisymmetrized molecular dynamics (AMD) model.

doi: 10.1103/PhysRevC.81.064613
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2010HU05      Phys.Rev. C 81, 044618 (2010)

M.Huang, A.Bonasera, Z.Chen, R.Wada, K.Hagel, J.B.Natowitz, P.K.Sahu, L.Qin, T.Keutgen, S.Kowalski, T.Materna, J.Wang, M.Barbui, C.Bottosso, M.R.D.Rodrigues

Isospin dependence of the nuclear equation of state near the critical point

NUCLEAR REACTIONS 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (64Zn, X), (70Zn, X), E=40 MeV/nucleon; measured particle spectra, fragment and light-particle yields, (fragment)(light charged particle)-coin, mass distributions, free energies using the Landau approach. E-ΔE Si telescopes for intermediate mass fragments (IMF) and scintillation detectors for light charged particles.

doi: 10.1103/PhysRevC.81.044618
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1798.


2010HU06      Phys.Rev. C 81, 044620 (2010)

M.Huang, Z.Chen, S.Kowalski, Y.G.Ma, R.Wada, T.Keutgen, K.Hagel, M.Barbui, A.Bonasera, C.Bottosso, T.Materna, J.B.Natowitz, L.Qin, M.R.D.Rodrigues, P.K.Sahu, J.Wang

Isobaric yield ratios and the symmetry energy in heavy-ion reactions near the Fermi energy

NUCLEAR REACTIONS 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (64Zn, X), (70Zn, X), E=40 MeV/nucleon; measured particle spectra for Z=6-15 isotopes, (fragment)(light charged particle)-coin, multiplicity distribution of primary fragments; deduced coefficients of Coulomb energy, symmetry energy and pairing energy. E-ΔE Si telescopes for intermediate mass fragments (IMF) and scintillation detectors for light charged particles. Comparison with calculations using AMD and GEMINI computer codes.

doi: 10.1103/PhysRevC.81.044620
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2010HU15      Phys.Rev. C 82, 054602 (2010)

M.Huang, R.Wada, Z.Chen, T.Keutgen, S.Kowalski, K.Hagel, M.Barbui, A.Bonasera, C.Bottosso, T.Materna, J.B.Natowitz, L.Qin, M.R.D.Rodrigues, P.K.Sahu, K.J.Schmidt, J.Wang

Power law behavior of the isotope yield distributions in the multifragmentation regime of heavy ion reactions

NUCLEAR REACTIONS 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (64Zn, X), (70Zn, X), E=40 MeV/nucleon; measured intermediate mass fragments (IMF) and yields of light charged particles in coin with IMF, angular distribution of fragments, multiplicity distributions versus isotope mass. Comparison with modified Fisher model. Power law behavior of isotope yield distributions.

doi: 10.1103/PhysRevC.82.054602
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2010HU17      Nucl.Phys. A847, 233 (2010)

M.Huang, Z.Chen, S.Kowalski, R.Wada, T.Keutgen, K.Hagel, J.Wang, L.Qin, J.B.Natowitz, T.Materna, P.K.Sahu, M.Barbui, C.Bottosso, M.R.D.Rodrigues, A.Bonasera

A novel approach to isoscaling: The role of the order parameter m = Nf-Zf over Af

NUCLEAR REACTIONS 58,64Ni, 112,124Sn, 197Au, 232Th(64Ni, X), (64Zn, X), (70Zn, X), E=40 MeV/nucleon; measured particle spectra, fragment and charged-particle yields, (fragment)(charged-particle)-coin, mass distributions; deduced systematics of isoscaling parameters α and β. Si(Li) telescope and scintillation detectors.

doi: 10.1016/j.nuclphysa.2010.07.004
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2010KO37      Phys.Rev. C 82, 064601 (2010)

Z.Kohley, L.W.May, S.Wuenschel, A.Bonasera, K.Hagel, R.Tripathi, R.Wada, G.A.Souliotis, D.V.Shetty, S.Galanopoulos, M.Mehlman, W.B.Smith, S.N.Soisson, B.C.Stein, S.J.Yennello

Investigation of transverse collective flow of intermediate mass fragments

NUCLEAR REACTIONS 64Ni(64Ni, X), 64Zn(64Zn, X), 70Zn(70Zn, X), E=35 MeV/nucleon; measured particle spectra, angular distributions, transverse flow of Z=1-9 fragments. Dependence of transverse flow of the intermediate mass fragments (IMF) on mass and charge of the colliding systems. Probe of nuclear equation of state.

doi: 10.1103/PhysRevC.82.064601
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2010NA07      Phys.Rev.Lett. 104, 202501 (2010)

J.B.Natowitz, G.Ropke, S.Typel, D.Blaschke, A.Bonasera, K.Hagel, T.Klahn, S.Kowalski, L.Qin, S.Shlomo, R.Wada, H.H.Wolter

Symmetry Energy of Dilute Warm Nuclear Matter

NUCLEAR REACTIONS 92Mo, 197Au(64Zn, X), E=35 MeV/nucleon; analyzed heavy-ion collision data; deduced free neutron and proton yields, temperatures, densities, symmetry energy. Quantum-statistical model of nuclear matter.

doi: 10.1103/PhysRevLett.104.202501
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2010QI06      Nucl.Phys. A834, 521c (2010)

L.Qin, J.B.Natowitz, G.Roepke, K.Hagel, R.Wada, Z.Chen, M.Huang, S.Kowalski, C.Bottosso, S.Shlomo, M.Barbui, A.Bonasera, M.Rodrigues, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka

Laboratory Studies of low density matter

doi: 10.1016/j.nuclphysa.2010.01.081
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2010WU07      Nucl.Phys. A843, 1 (2010)

S.Wuenschel, A.Bonasera, L.W.May, G.A.Souliotis, R.Tripathi, S.Galanopoulos, Z.Kohley, K.Hagel, D.V.Shetty, K.Huseman, S.N.Soisson, B.C.Stein, S.J.Yennello

Measuring the temperature of hot nuclear fragments

NUCLEAR REACTIONS 64Ni(86Kr, X), 58Ni(78Kr, X), E=35 MeV/nucleon; measured fragment mass and charge yields, fragment energy spectra; deduced system temperature from fragment momenta. NIMROD ISiS array.

doi: 10.1016/j.nuclphysa.2010.04.013
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2009BA34      Int.J.Mod.Phys. E18, 1036 (2009)

M.Barbui, T.Materna, P.Sahu, A.Wieloch, F.D.Becchetti, G.Chubaryan, M.Cinausero, T.W.O'Donnell, D.Fabris, H.Griffin, K.Hagel, S.Kowalski, M.Lunardon, Z.Majka, S.Moretto, R.Murthy, J.B.Natowitz, G.Nebbia, S.Pesente, G.Prete, L.Qin, V.Rizzi, Z.Sosin, G.Souliotis, G.Viesti, R.Wada, J.Wang

New experimental approach for heavy and superheavy element production

NUCLEAR REACTIONS 232Th(197Au, X), E=7.5 MeV/nucleon; measured TOF-coin. Found candidates for superheavies. Very preliminary.

doi: 10.1142/S0218301309013208
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2009SH12      Phys.Rev. C 79, 034604 (2009)

S.Shlomo, G.Ropke, J.B.Natowitz, L.Qin, K.Hagel, R.Wada, A.Bonasera

Effect of medium dependent binding energies on inferring the temperatures and freeze-out density of disassembling hot nuclear matter from cluster yields

doi: 10.1103/PhysRevC.79.034604
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2009WU03      Phys.Rev. C 79, 061602 (2009)

S.Wuenschel, R.Dienhoffer, G.A.Souliotis, S.Galanopoulos, Z.Kohley, K.Hagel, D.V.Shetty, K.Huseman, L.W.May, S.N.Soisson, B.C.Stein, A.L.Caraley, S.J.Yennello

Isoscaling of fragments with Z = 1-17 from reconstructed quasiprojectiles

NUCLEAR REACTIONS 64Ni(86Kr, X), 58Ni(78Kr, X), E=35 MeV/nucleon; measured particle spectra, isotopic yield ratios, N/Z ratio of quasiprojectiles, and S(N); deduced isoscaling parameters for Z=1-17 fragments.

doi: 10.1103/PhysRevC.79.061602
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2009WU04      Nucl.Instrum.Methods Phys.Res. A604, 578 (2009)

S.Wuenschel, K.Hagel, R.Wada, J.B.Natowitz, S.J.Yennello, Z.Kohley, C.Bottosso, L.W.May, W.B.Smith, D.V.Shetty, B.C.Stein, S.N.Soisson, G.Prete

NIMROD-ISiS, a versatile tool for studying the isotopic degree of freedom in heavy ion collisions

doi: 10.1016/j.nima.2009.03.187
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2008BO28      Phys.Rev.Lett. 101, 122702 (2008)

A.Bonasera, Z.Chen, R.Wada, K.Hagel, J.Natowitz, P.Sahu, L.Qin, S.Kowalski, Th.Keutgen, T.Materna, T.Nakagawa

Quantum Nature of a Nuclear Phase Transition

NUCLEAR REACTIONS 232Th(64Ni, X), E=40 MeV/nucleon; measured fragment mass distributions. 64Ni(64Ni, X), E=40 MeV/nucleon; measured free and symmetry energies. Compared results to model calculations.

doi: 10.1103/PhysRevLett.101.122702
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2007KO04      Phys.Rev. C 75, 014601 (2007)

S.Kowalski, J.B.Natowitz, S.Shlomo, R.Wada, K.Hagel, J.Wang, T.Materna, Z.Chen, Y.G.Ma, L.Qin, A.S.Botvina, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka, A.Ono

Experimental determination of the symmetry energy of a low density nuclear gas

NUCLEAR REACTIONS 92Mo, 197Au(64Zn, X), E=35 MeV/nucleon; measured light charged particle spectra, multiplicities, yield ratios; deduced temperature- and density-dependent symmetry energy coefficients.

doi: 10.1103/PhysRevC.75.014601
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2007KO51      Nucl.Phys. A787, 619c (2007)

S.Kowalski, J.B.Natowitz, S.Shlomo, R.Wada, K.Hagel, J.Wang, T.Materna, Z.Chen, Y.G.Ma, L.Qin, A.S.Botvina, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, T.Keutgen, Y.El Masri, Z.Majka, A.Ono

Clustering and Symmetry Energy in a Low Density Nuclear Gas

NUCLEAR REACTIONS 92Mo, 197Au(64Zn, X), E=35 MeV/nucleon; analyzed charged-particle and neutron mutliplicities; deduced cluster formation, reaction mechanism features and isoscaling parameters.

doi: 10.1016/j.nuclphysa.2006.12.092
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2007WA02      Phys.Rev. C 75, 014604 (2007)

J.Wang, T.Keutgen, R.Wada, K.Hagel, S.Kowalski, T.Materna, L.Qin, Z.Chen, J.B.Natowitz, Y.G.Ma, M.Murray, A.Keksis, E.Martin, A.Ruangma, D.V.Shetty, G.Souliotis, M.Veselsky, E.M.Winchester, S.J.Yennello, D.Fabris, M.Lunardon, S.Moretto, G.Nebbia, S.Pesente, V.Rizzi, G.Viesti, M.Cinausero, G.Prete, J.Cibor, Z.Majka, P.Staszel, W.Zipper, Y.El Masri, R.Alfaro, A.Martinez-Davalos, A.Menchaca-Rocha, A.Ono

Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions

NUCLEAR REACTIONS 112Sn(40Ar, X), E=40 MeV/nucleon; 124Sn(27Al, X), E=55 MeV/nucleon; measured light charged particle and neutron spectra, multiplicities, yield ratios; deduced source features.

doi: 10.1103/PhysRevC.75.014604
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2005AR18      Nucl.Phys. A757, 1 (2005)

I.Arsene, I.G.Bearden, D.Beavis, C.Besliu, B.Budick, H.Boggild, C.Chasman, C.H.Christensen, P.Christiansen, J.Cibor, R.Debbe, E.Enger, J.J.Gaardhoje, M.Germinario, O.Hansen, A.Holm, A.K.Holme, K.Hagel, H.Ito, E.Jakobsen, A.Jipa, F.Jundt, J.I.Jordre, C.E.Jorgensen, R.Karabowicz, E.J.Kim, T.Kozik, T.M.Larsen, J.H.Lee, Y.K.Lee, S.Lindahl, G.Lovhoiden, Z.Majka, A.Makeev, M.Mikelsen, M.J.Murray, J.Natowitz, B.Neumann, B.S.Nielsen, D.Ouerdane, R.Planeta, F.Rami, C.Ristea, O.Ristea, D.Rohrich, B.H.Samset, D.Sandberg, S.J.Sanders, R.A.Scheetz, P.Staszel, T.S.Tveter, F.Videbaek, R.Wada, Z.Yin, I.S.Zgura

Quark-gluon plasma and color glass condensate at RHIC? The perspective from the BRAHMS experiment

NUCLEAR REACTIONS 197Au(197Au, X), E(cm)=130, 200 GeV/nucleon; analyzed data; deduced possible quark-gluon plasma formation.

doi: 10.1016/j.nuclphysa.2005.02.130
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2005MA14      Nucl.Phys. A749, 106c (2005)

Y.G.Ma, J.B.Natowitz, R.Wada, K.Hagel, J.Wang, T.Keutgen, Z.Majka, M.Murray, L.Qin, P.Smith, R.Alfaro, J.Cibor, M.Cinausero, Y.El Masri, D.Fabris, E.Fioretto, A.Keksis, M.Lunardon, A.Makeev, N.Marie, E.Martin, A.Martinez-Davalos, A.Menchaca-Rocha, G.Nebbia, G.Prete, V.Rizzi, A.Ruangma, D.V.Shetty, G.Souliotis, P.Staszel, M.Veselsky, G.Viesti, E.M.Winchester, S.J.Yennello

Towards the critical behavior for the light nuclei by NIMROD detector

NUCLEAR REACTIONS 58Ni(40Ar, X), E=47 MeV/nucleon; measured light charged particle and intermediate mass fragments charge and energy distributions; deduced phase transition features. Fisher droplet model and Zipf's law analysis.

doi: 10.1016/j.nuclphysa.2004.12.015
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2005MA32      Phys.Rev. C 71, 054606 (2005)

Y.G.Ma, J.B.Natowitz, R.Wada, K.Hagel, J.Wang, T.Keutgen, Z.Majka, M.Murray, L.Qin, P.Smith, R.Alfaro, J.Cibor, M.Cinausero, Y.El Masri, D.Fabris, E.Fioretto, A.Keksis, M.Lunardon, A.Makeev, N.Marie, E.Martin, A.Martinez-Davalos, A.Menchaca-Rocha, G.Nebbia, G.Prete, V.Rizzi, A.Ruangma, D.V.Shetty, G.Souliotis, P.Staszel, M.Veselsky, G.Viesti, E.M.Winchester, S.J.Yennello

Critical behavior in light nuclear systems: Experimental aspects

NUCLEAR REACTIONS 27Al, 48Ti, 58Ni(40Ar, X), (40Ar, pX), (40Ar, dX), (40Ar, tX), (40Ar, 3HeX), (40Ar, αX), E=47 MeV/nucleon; measured fragment charge distributions, charged particle spectra, multiplicities; deduced phase transition features.

doi: 10.1103/PhysRevC.71.054606
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2004KE09      Phys.Rev. C 70, 014611 (2004)

Th.Keutgen, J.Cabrera, Y.El Masri, Ch.Dufauquez, V.Roberfroid, I.Tilquin, A.Ninane, J.Van Mol, R.Regimbart, R.J.Charity, J.B.Natowitz, K.Hagel, R.Wada, D.J.Hinde

Properties of neutron emission in fission processes induced by 20Ne + 159Tb and 20Ne + 169Tm reactions between E = 8 and 16 MeV/nucleon

NUCLEAR REACTIONS 159Tb, 169Tm(20Ne, F), E=8, 10, 13, 16 MeV/nucleon; measured neutron spectra, angular distributions, multiplicities, fission fragment energy and mass distributions.

doi: 10.1103/PhysRevC.70.014611
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2004MA20      Phys.Rev. C 69, 031604 (2004)

Y.G.Ma, R.Wada, K.Hagel, J.Wang, T.Keutgen, Z.Majka, M.Murray, L.Qin, P.Smith, J.B.Natowitz, R.Alfaro, J.Cibor, M.Cinausero, Y.El Masri, D.Fabris, E.Fioretto, A.Keksis, M.Lunardon, A.Makeev, N.Marie, E.Martin, A.Martinez-Davalos, A.Menchaca-Rocha, G.Nebbia, G.Prete, V.Rizzi, A.Ruangma, D.V.Shetty, G.Souliotis, P.Staszel, M.Veselsky, G.Viesti, E.M.Winchester, S.J.Yennello

Evidence of critical behavior in the disassembly of nuclei with A ∼ 36

NUCLEAR REACTIONS 58Ni(40Ar, X), E=47 MeV/nucleon; measured light charged particle and intermediate mass fragment spectra, charge and angular distributions; deduced critical behavior in quasiprojectile fragmentation.

doi: 10.1103/PhysRevC.69.031604
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2004MO19      Phys.Rev. C 69, 044604 (2004)

S.Moretto, D.Fabris, M.Lunardon, S.Pesente, V.Rizzi, G.Viesti, M.Barbui, M.Cinausero, E.Fioretto, G.Prete, A.Brondi, E.Vardaci, F.Lucarelli, A.Azhari, X.D.Tang, K.Hagel, Y.Ma, A.Makeev, M.Murray, J.B.Natowitz, L.Qin, P.Smith, L.Trache, R.E.Tribble, R.Wada, J.Wang

Search for temperature and N/Z dependent effects in the decay of A = 98 compound nuclei

NUCLEAR REACTIONS 87Rb(11B, X), (11C, X), E=110 MeV; measured particle spectra, (light particle)(evaporation residue)-coin, relative proton, α-particle yields. Comparison with statistical model predictions.

doi: 10.1103/PhysRevC.69.044604
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2004NA05      Int.J.Mod.Phys. E13, 269 (2004)

J.B.Natowitz, K.Hagel, Y.Ma, M.Murray, L.Qin, S.Shlomo, R.Wada, J.Wang

Relationships between caloric curves and the critical point of nucleonic matter

doi: 10.1142/S0218301304002041
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2004SH22      Nucl.Phys. A734, E100 (2004)

D.V.Shetty, A.Keksis, E.Martin, A.Ruangma, G.A.Souliotis, M.Veselsky, E.M.Winchester, S.J.Yennello, K.Hagel, Y.G.Ma, A.Makeev, N.Marie, M.Murray, J.B.Natowitz, L.Qin, P.Smith, R.Wada, J.Wang, M.Cinausero, E.Fioretto, G.Prete, D.Fabris, M.Lunardon, G.Nebbia, V.Rizzi, G.Viesti, J.Cibor, Z.Majka, P.Staszel, R.Alfaro, A.Martinez-Davalos, A.Menchaca-Rocha, Y.El Masri, T.Keutgen

Mid-rapidity emission in 124Sn, 124Xe + 124Sn, 112Sn reactions at 28 MeV/nucleon

NUCLEAR REACTIONS 112,124Sn(124Sn, X), (124Xe, X), E=28 MeV/nucleon; measured light charged particle and intermediate mass fragment yields, rapidity distributions vs centrality.

doi: 10.1016/j.nuclphysa.2004.03.030
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2003CA32      Phys.Rev. C 68, 034613 (2003)

J.Cabrera, Th.Keutgen, Y.El Masri, Ch.Dufauquez, V.Roberfroid, I.Tilquin, J.Van Mol, R.Regimbart, R.J.Charity, J.B.Natowitz, K.Hagel, R.Wada, D.J.Hinde

Fusion-fission and fusion-evaporation processes in 20Ne + 159Tb and 20Ne + 169Tm interactions between E/A=8 and 16 MeV

NUCLEAR REACTIONS 159Tb, 169Tm(20Ne, X), E=8-16 MeV/nucleon; measured fission, fusion, and evaporation residue σ, neutron multiplicities, fragment energy and angular distributions; deduced reaction mechanism features.

doi: 10.1103/PhysRevC.68.034613
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2227.


2003SH36      Phys.Rev. C 68, 054605 (2003)

D.V.Shetty, A.Keksis, E.Martin, A.Ruangma, G.A.Souliotis, M.Veselsky, E.M.Winchester, S.J.Yennello, K.Hagel, Y.G.Ma, A.Makeev, N.Marie, M.Murray, J.B.Natowitz, L.Qin, P.Smith, R.Wada, J.Wang, M.Cinausero, E.Fioretto, G.Prete, D.Fabris, M.Lunardon, G.Nebbia, V.Rizzi, G.Viesti, J.Cibor, Z.Majka, P.Staszel, R.Alfaro, A.Martinez-Davalos, A.Menchaca-Rocha, Y.El Masri, T.Keutgen, and the NIMROD Collaboration

Intermediate mass fragments and isospin dependence in 124Sn, 124Xe + 124Sn 112Sn reactions at 28 MeV/nucleon

NUCLEAR REACTIONS 112,124Sn(124Sn, X), (124Xe, X), E=28 MeV/nucleon; measured light charged particle and intermediate mass fragments isotopic yields, energy spectra, multiplicities; deduced isospin dependences.

doi: 10.1103/PhysRevC.68.054605
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2002LU04      Eur.Phys.J. A 13, 419 (2002)

M.Lunardon, G.Viesti, D.Bazzacco, D.Fabris, G.Nebbia, C.Ur, C.Rossi Alvarez, M.Cinausero, E.Farnea, E.Fioretto, G.Prete, G.de Angelis, D.R.Napoli, K.Hagel, J.B.Natowitz, R.Wada

Experimental Investigation of the Level Density in Highly Excited Nuclei Around 208Pb

NUCLEAR REACTIONS 198Pt(11B, xnyp)201Bi/202Bi/203Bi/204Bi/205Bi/202Pb/203Pb/204Pb/205Pb, E=55-90 MeV; 198Pt(10B, X)201Bi/202Bi/203Bi/204Bi/202Pb/203Pb/204Pb, E=55-65 MeV; measured Eγ, Iγ, Ep, γγ-, (charged particle)γ-coin; deduced relative yields, level density features. 208Pb deduced nuclear temperature following first-chance proton emission. GASP, ISIS arrays. Statistical model calculations.

doi: 10.1007/s10050-002-8772-7
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2002MA31      Phys.Rev. C65, 051602 (2002); Erratum Phys.Rev. C66, 029902 (2002)

Y.G.Ma, R.Wada, K.Hagel, M.Murray, J.S.Wang, L.J.Qin, A.Makeev, P.Smith, J.B.Natowitz, A.Ono

Sequential Decay Distortion of Goldhaber Model Widths for Spectator Fragments

NUCLEAR REACTIONS 27Al(40Ar, X), E=200 MeV/nucleon; calculated projectile-like fragments mass, momentum distributions in peripheral collisions; deduced role of light particle evaporation. Goldhaber model.

doi: 10.1103/PhysRevC.65.051602
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2002NA04      Phys.Rev. C65, 034618 (2002)

J.B.Natowitz, R.Wada, K.Hagel, T.Keutgen, M.Murray, A.Makeev, L.Qin, P.Smith, C.Hamilton

Caloric Curves and Critical Behavior in Nuclei

NUCLEAR STRUCTURE A=30-240; analyzed caloric curve data; deduced critical behavior, related features.

doi: 10.1103/PhysRevC.65.034618
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2002NA22      Phys.Rev. C66, 031601 (2002)

J.B.Natowitz, K.Hagel, Y.Ma, M.Murray, L.Qin, S.Shlomo, R.Wada, J.Wang

Caloric Curves and Nuclear Expansion

NUCLEAR STRUCTURE A=30-240; 90Zr; calculated, analyzed density vs excitation energy. Expanding Fermi gas hypothesis.

doi: 10.1103/PhysRevC.66.031601
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2002NA24      Phys.Rev.Lett. 89, 212701 (2002)

J.B.Natowitz, K.Hagel, Y.Ma, M.Murray, L.Qin, R.Wada, J.Wang

Limiting Temperatures and the Equation of State of Nuclear Matter

doi: 10.1103/PhysRevLett.89.212701
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2001CH07      Phys.Rev. C63, 024611 (2001)

R.J.Charity, L.G.Sobotka, J.Cibor, K.Hagel, M.Murray, J.B.Natowitz, R.Wada, Y.El Masri, D.Fabris, G.Nebbia, G.Viesti, M.Cinausero, E.Fioretto, G.Prete, A.Wagner, H.Xu

Emission of Unstable Clusters from Hot Yb Compound Nuclei

NUCLEAR REACTIONS 100Mo(60Ni, X), E=11 MeV/nucleon; measured evaporation residues angular distributions, neutron spectra, isotopically resolved Z=1-6 charged particle spectra, σ(θ), multiplicities; deduced unstable fragments decay features. Statistical model calculations.

doi: 10.1103/PhysRevC.63.024611
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2001ST15      Phys.Rev. C63, 064610 (2001)

P.Staszel, Z.Majka, L.G.Sobotka, D.G.Sarantites, R.J.Charity, J.Cibor, K.Hagel, N.Marie, J.B.Natowitz, R.Wada, D.W.Stracener, G.Auger, Y.Schutz, J.P.Wieleczko, R.Dayras, E.Plagnol, J.Barreto, E.Norbeck

Fragment Excitation Energies at Freeze-Out in 84Kr + 93Nb Collisions at 45 MeV/Nucleon

NUCLEAR REACTIONS 93Nb(84Kr, X), E=45 MeV/nucleon; measured light charged particle and intermediate mass fragment multiplicity, charge, angle, and mass distributions, correlation functions; deduced primary fragment excitation energy, reaction mechanism features.

doi: 10.1103/PhysRevC.63.064610
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2001VI13      Phys.Lett. 521B, 165 (2001)

G.Viesti, V.Rizzi, D.Fabris, M.Lunardon, G.Nebbia, M.Cinausero, E.Fioretto, G.Prete, A.Brondi, G.La Rana, R.Moro, E.Vardaci, M.Aiche, M.M.Aleonard, G.Barreau, D.Boivin, J.N.Scheurer, J.F.Chemin, K.Hagel, J.B.Natowitz, R.Wada, S.Courtin, F.Haas, N.Rowley, B.M.Nyako, J.Gal, J.Molnar

Exploring the Emission Barriers in Hot Nuclei

NUCLEAR REACTIONS 170Er(30Si, 5nα), E=165 MeV; 170Er(29Si, 4nα), E=147 MeV; measured Eγ, Iγ, Eα, (charged particle)γ-coin. 200Pb deduced α-emission barrier distribution. Euroball IV, Diamant arrays, comparisons with model predictions.

doi: 10.1016/S0370-2693(01)01221-7
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2000CI01      Phys.Lett. 473B, 29 (2000)

J.Cibor, R.Wada, K.Hagel, M.Lunardon, N.Marie, R.Alfaro, W.Shen, B.Xiao, Y.Zhao, J.Li, B.A.Li, M.Murray, J.B.Natowitz, Z.Majka, P.Staszel

Dynamic Evolution and the Caloric Curve for Medium Mass Nuclei

NUCLEAR REACTIONS 116Sn(12C, X), 108Ag(22Ne, X), 100Mo(40Ar, X), 89Y(64Zn, X), E=47 MeV/nucleon; measured light, intermediate fragments velocity plots, relative yields; deduced caloric curve, related emission source features. Coalescence model analysis.

doi: 10.1016/S0370-2693(99)01457-4
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2000HA45      Phys.Rev. C62, 034607 (2000)

K.Hagel, R.Wada, J.Cibor, M.Lunardon, N.Marie, R.Alfaro, W.Shen, B.Xiao, Y.Zhao, Z.Majka, J.Li, P.Staszel, B.-A.Li, M.Murray, T.Keutgen, A.Bonasera, J.B.Natowitz

Light Particle Probes of Expansion and Temperature Evolution: Coalescence model analyses of heavy ion Collisions at 47A MeV

NUCLEAR REACTIONS 116Sn(12C, X), Ag(22Ne, X), 100Mo(40Ar, X), 89Y(64Zn, X), E=47 MeV/nucleon; measured charged particle vs neutron multiplicity, light fragment spectra, angular distributions; deduced source thermodynamic features, reaction mechanism features. Coalescence model analysis.

doi: 10.1103/PhysRevC.62.034607
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2000NA21      Acta Phys.Pol. B31, 1449 (2000)

J.B.Natowitz, J.Cibor, A.Bonasera, K.Hagel, R.Wada, M.Murray, T.Keutgen, M.Lunardon, N.Marie, R.Alfaro, W.Shen, Z.Majka, P.Staszel

Probing Dynamic Evolution in Intermediate Energy Collisions

NUCLEAR REACTIONS 116Sn(12C, X), Ag(22Ne, X), 100Mo(40Ar, X), 89Y(64Zn, X), E=47 MeV/nucleon; analyzed light particle yields, spectra; deduced parameters, source features. Coalescence model analysis.


2000WA29      Phys.Rev. C62, 034601 (2000)

R.Wada, K.Hagel, J.Cibor, M.Gonin, Th.Keutgen, M.Murray, J.B.Natowitz, A.Ono, J.C.Steckmeyer, A.Kerambrun, J.C.Angelique, A.Auger, G.Bizard, R.Brou, C.Cabot, E.Crema, D.Cussol, D.Durand, Y.El Masri, P.Eudes, Z.Y.He, S.C.Jeong, C.Lebrun, J.P.Patry, A.Peghaire, J.Peter, R.Regimbart, E.Rosato, F.Saint-Laurent, B.Tamain, E.Vient, and the GANIL E-160 Collaboration

Reaction Mechanisms and Multifragmentation Processes in 64Zn + 58Ni at 35A-79A MeV

NUCLEAR REACTIONS 58Ni(64Zn, X), E=35, 49, 57, 69, 79 MeV/nucleon; measured fragments charge, multiplicity, angular distributions, energy, transverse momentum spectra; deduced reaction mechanism features. Comparison with antisymmetrized molecular dynamics model.

doi: 10.1103/PhysRevC.62.034601
Citations: PlumX Metrics


1999FA19      Nucl.Phys. (Supplement) A654, 775c (1999)

D.Fabris, M.Lunardon, G.Nebbia, G.Viesti, M.Cinausero, E.Fioretto, D.R.Napoli, G.Prete, K.Hagel, J.B.Natowitz, R.Wada, P.Gonthier, Z.Majka, R.Alfarro, Y.Zhao, N.Mdeiwayeh, T.Ho

Excitation Energy Deposition in 209Bi(α, α') Reactions at 240 MeV

NUCLEAR REACTIONS 209Bi(α, α'), E=240 MeV; measured (neutron)(light charged particle)(fission fragment)-coin, neutron multiplicity. 209Bi deduced GDR parameters vs excitation energy.

doi: 10.1016/S0375-9474(00)88545-0
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1999KE16      Nucl.Phys. (Supplement) A654, 878c (1999)

Th.Keutgen, J.Cabrera, Y.El Masri, C.Ghisalberti, I.Tilquin, L.Lebreton, A.Ninane, J.Lehmann, V.Roberfroid, L.Michel, R.Regimbart, J.B.Natowitz, K.Hagel, R.Wada, R.J.Charity

Thermal and Dynamical Properties of Fusion-FIssion and Fusion-Evaporation Processes in 20Ne + 159Tb and 20Ne + 169Tm Reactions between 8 and 16 MeV/Nucleon

NUCLEAR REACTIONS 159Tb, 169Tm(20Ne, X), E=8-16 MeV/nucleon; measured fisson, evaproation residue σ, neutron multiplicity; deduced reaction mechanism features.

doi: 10.1016/S0375-9474(00)88564-4
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1999VI08      Nucl.Phys. A652, 17 (1999)

G.Viesti, M.Lunardon, D.Fabris, G.Nebbia, M.Cinausero, E.Fioretto, D.R.Napoli, G.Prete, K.Hagel, J.B.Natowitz, R.Wada, P.Gonthier, Z.Majka, R.Alfarro, Y.Zhao, N.Mdeiwayeh, T.Ho

Energy Deposition and GDR Emission in the Reaction 209Bi(α, α') at 240 MeV

NUCLEAR REACTIONS 209Bi(α, xnα), E=240 MeV; measured Eα, En, neutron multiplicity; deduced target excitation energy vs projectile energy loss; calculated Eγ from GDR excitation. Statistical model.

doi: 10.1016/S0375-9474(99)00149-9
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1999VI09      Nucl.Phys. A649, 165c (1999)

G.Viesti, M.Lunardon, D.Fabris, G.Nebbia, M.Cinausero, E.Fioretto, D.R.Napoli, G.Prete, K.Hagel, J.B.Natowitz, R.Wada, P.Gonthier, Z.Majka, R.Alfarro, Y.Zhao, N.Mdeiwayeh, T.Ho

Energy Deposition and GDR Emission in Inelastic Alpha Particle Scattering

NUCLEAR REACTIONS 209Bi(α, xnα), E=240 MeV; measured Eα, En, neutron multiplicity. 209Bi deduced excitation energy distributions vs scattered Eα, GDR features.

doi: 10.1016/S0375-9474(99)00055-X
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1999VI14      Pramana 53, 395 (1999)

G.Viesti, M.Lunardon, D.Fabris, G.Nebbia, M.Cinausero, E.Fioretto, G.Prete, J.B.Natowitz, K.Hagel, R.Wada

Experimental Investigations of the Nuclear Level Density by using Heavy Ion Reactions

NUCLEAR REACTIONS 198Pt(11B, xnp), E=75 MeV; 198Pt(10B, xnp), E=60 MeV; measured Eγ, Iγ, proton spectra, pγ-coin, neutron multiplicities. 208Pb deduced level density parameters, related features. Gasp, Isis arrays.

doi: 10.1007/s12043-999-0004-0
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1998FA08      Phys.Rev. C58, R624 (1998)

D.Fabris, M.Lunardon, G.Nebbia, G.Viesti, M.Cinausero, E.Fioretto, D.R.Napoli, G.Prete, K.Hagel, J.B.Natowitz, R.Wada, P.Gonthier, Z.Majka, R.Alfarro, Y.Zhao, N.Mdeiwayeh, T.Ho

Excitation Energy Deposition in 209Bi(α, α') Reactions at 240 MeV

NUCLEAR REACTIONS 209Bi(α, α'X), E=240 MeV; measured α-spectra, neutron multiplicity; deduced target excitation vs Eα'.

doi: 10.1103/PhysRevC.58.R624
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1998MA37      Phys.Rev. C58, 256 (1998)

N.Marie, A.Chbihi, J.B.Natowitz, A.Le Fevre, S.Salou, J.P.Wieleczko, L.Gingras, M.Assenard, G.Auger, Ch.O.Bacri, F.Bocage, B.Borderie, R.Bougault, R.Brou, P.Buchet, J.L.Charvet, J.Cibor, J.Colin, D.Cussol, R.Dayras, A.Demeyer, D.Dore, D.Durand, P.Eudes, J.D.Frankland, E.Galichet, E.Genouin-Duhamel, E.Gerlic, M.Germain, D.Gourio, D.Guinet, K.Hagel, P.Lautesse, J.L.Laville, J.F.Lecolley, T.Lefort, R.Legrain, N.Le Neindre, O.Lopez, M.Louvel, Z.Majka, A.M.Maskay, L.Nalpas, A.D.Nguyen, M.Parlog, J.Peter, E.Plagnol, A.Rahmani, T.Reposeur, M.F.Rivet, E.Rosato, F.Saint-Laurent, J.C.Steckmeyer, M.Stern, G.Tabacaru, B.Tamain, O.Tirel, E.Vient, C.Volant, R.Wada

Experimental Determination of Fragment Excitation Energies in Multifragmentation Events

NUCLEAR REACTIONS Sn(129Xe, X), E=50 MeV/nucleon; measured light, intermediate fragments correlations, kinetic energy distributions, multiplicities; deduced multifragmentation mechanism features, primary fragment temperatures. Statistical model analysis.

doi: 10.1103/PhysRevC.58.256
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