NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = J.B.Natowitz Found 166 matches. Showing 1 to 100. [Next]2023NA04 Phys.Rev. C 107, 014618 (2023) Employing ternary fission of 242Pu as a probe of very neutron-rich matter NUCLEAR REACTIONS 241Pu(n, F), E=thermal; calculated light isotope yields in ternary fission process (n, 1,2,3,4H, 3,4,5,6,7,8,9He, 6,7,8,9,10,11,12Li, 7,8,9,10,11,12,13,14,15Be, 10,11,12,13,14,15,16,17,18B, 13,14,15,16,17,18,19,20). Ternary fission yields modeled within a systematic quantum statistical approach and a generalized relativistic mean-field approach. Investigated the influence of medium effects on yields distributions - self-energy shifts and Pauli blocking. Comparison to experimental data.
doi: 10.1103/PhysRevC.107.014618
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
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
2021RO16 Phys.Rev. C 103, L061601 (2021) Nonequilibrium information entropy approach to ternary fission of actinides NUCLEAR REACTIONS 233,235U, 239,241Pu, 245Cm(n, F), E=thermal; calculated Lagrange parameters, primary yields of 1,2,3,4H, 3,4,5,6,7,8,9He, 6,7,8,9,10,11,12Li, 7,8,9,10,11,12,13,14,15Be, 10,11,12,13,14,15,16,17,18B, 14,15,16,17,18,19,20C from ternary fission using generalized Gibbs distribution within the nonequilibrium statistical operator method. Comparison with available experimental data. RADIOACTIVITY 248Cm, 252Cf(SF); calculated Lagrange parameters, primary yields of 1,2,3,4H, 3,4,5,6,7,8,9He, 6,7,8,9,10,11,12Li, 7,8,9,10,11,12,13,14,15Be, 10,11,12,13,14,15,16,17,18B, 14,15,16,17,18,19,20C from ternary fission using generalized Gibbs distribution within the nonequilibrium statistical operator method. Comparison with available experimental data.
doi: 10.1103/PhysRevC.103.L061601
2020BO19 Phys.Rev. C 102, 061602 (2020) Calculation of the 12C + 12C sub-barrier fusion cross section in an imaginary-time-dependent mean field theory NUCLEAR REACTIONS 12C(12C, X), E(cm)=0.4-7 MeV; calculated astrophysical S factor as a function of the incident energy, ratios of reaction rates with and without the inclusion of resonances. Time-dependent Hartree-Fock (TDHF) based classical model with the Feynman path-integral method. Comparison with direct and indirect experimental results; deduced conflicting results where recent analyses of experimental data employed Trojan horse method (THM).
doi: 10.1103/PhysRevC.102.061602
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
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
2020RO17 Eur.Phys.J. A 56, 238 (2020) Light element (Z = 1, 2) production from spontaneous ternary fission of 252Cf RADIOACTIVITY 252Cf(SF); analyzed available data. 1,2,3H, 4,5,6,7,8He; calculated yields within a nonequilibrium approach, and the contribution of unstable nuclei and excited bound states is taken into account.
doi: 10.1140/epja/s10050-020-00247-0
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
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
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
2018LI03 Phys.Rev. C 97, 014613 (2018) X.Liu, H.Zheng, W.Lin, M.Huang, Y.Y.Yang, J.S.Wang, R.Wada, A.Bonasera, J.B.Natowitz Reexamination of a novel determination of density, temperature, and symmetry energy based on a modified Fisher model NUCLEAR REACTIONS 1H(Xe, X), at p=80-350 GeV/c; calculated isotopic yields using the modified Fisher model (MFM) formulation of the Purdue group; deduced density, temperature, and symmetry energy parameters. 40Ca(40Ca, X), E=35-300 MeV/nucleon; calculated density and temperature using the self-consistent method with the original MFM.
doi: 10.1103/PhysRevC.97.014613
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
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
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
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
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
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
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
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
2014LI34 Phys.Rev. C 90, 014605 (2014) X.Liu, W.Lin, R.Wada, M.Huang, Z.Chen, G.Q.Xiao, S.Zhang, X.Jin, R.Han, J.Liu, F.Shi, H.Zheng, J.B.Natowitz, A.Bonasera Primary isotope yields and characteristic properties of the fragmenting source in heavy-ion reactions near the Fermi energy NUCLEAR REACTIONS 40Ca(40Ca, X), E=35 MeV/nucleon; calculated ratio of free energy to T0 for N=Z isotopes from antisymmetrized molecular dynamics (AMD) simulation, ratio of symmetry energy coefficient relative to temperature (asym/T), T0 values as a function of Z, temperature versus mass number, radial flow energy vs available energy. Modified Fisher model (MFM) applied to central collisions of AMD events. Comparison with experimental data.
doi: 10.1103/PhysRevC.90.014605
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
2006DE16 Phys.Rev. C 73, 034602 (2006) J.N.De, S.K.Samaddar, S.Shlomo, J.B.Natowitz Continuous phase transition and negative specific heat in finite nuclei NUCLEAR STRUCTURE 40,50Ca, 150Re, 150Nd; calculated thermodynamic quantities, phase transition features. Heated liquid-drop model.
doi: 10.1103/PhysRevC.73.034602
2006KE08 Eur.Phys.J. A 30, 203 (2006) A.Kelic, J.B.Natowitz, K.-H.Schmidt Nuclear thermometry
doi: 10.1140/epja/i2006-10117-6
2006VI01 Phys.Lett. B 637, 176 (2006) V.E.Viola, K.Kwiatkowski, S.J.Yennello, J.B.Natowitz Comment on breakup densities of hot nuclei NUCLEAR REACTIONS 197Au(α, X), E=200 MeV; 197Au(14N, X), E=20-100 MeV/nucleon; 197Au(3He, X), E=4.8 GeV; 197Au(π-, X), E at 8 GeV/c; analyzed intermediate mass fragment multiplicities; deduced breakup densities.
doi: 10.1016/j.physletb.2006.04.034
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
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
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
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
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
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
2004RO18 Phys.Rev. C 69, 044611 (2004) V.Roberfroid, Y.El Masri, J.Cabrera, Th.Keutgen, L.Lebreton, I.Tilquin, C.Dufauquez, A.Ninane, J.Van Mol, R.Regimbart, R.J.Charity, J.B.Natowitz Neutron-skin effect in the nuclear reactions 58Ni+122Sn and 64Ni+116Sn around 6 MeV/nucleon NUCLEAR REACTIONS 122Sn(58Ni, X), E=354, 375.5 MeV; 116Sn(64Ni, X), E=382.5 MeV; measured fusion-evaporation and fusion-fission σ, fragment kinetic energy spectra, light particle multiplicities; deduced no entrance channel effects.
doi: 10.1103/PhysRevC.69.044611
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
2004VI10 Phys.Rev.Lett. 93, 132701 (2004) V.E.Viola, K.Kwiatkowski, J.B.Natowitz, S.J.Yennello Breakup Densities of Hot Nuclei NUCLEAR REACTIONS 197Au(α, X), E=200 MeV; 197Au(14N, X), E=20-100 MeV/nucleon; 197Au(3He, X), E=4.8 GeV; analyzed intermediate mass fragment spectra; deduced breakup densities.
doi: 10.1103/PhysRevLett.93.132701
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
1998WA10 Phys.Lett. 422B, 6 (1998) R.Wada, K.Hagel, J.Cibor, J.Li, N.Marie, W.Q.Shen, Y.Zhao, J.B.Natowitz, A.Ono Entrance Channel Dynamics in 40Ca + 40Ca at 35A MeV NUCLEAR REACTIONS 40Ca(40Ca, X), E=35 MeV/nucleon; calculated fragments charge, transverse momentum, energy distributions; deduced diffusion process role in entrance channel dynamics. Two models compared. Comparison with data.
doi: 10.1016/S0370-2693(98)00033-1
1997CI01 Phys.Rev. C55, 264 (1997) J.Cibor, Z.Majka, T.Kozik, P.Staszel, Z.Sosin, K.Hagel, J.Li, L.Lou, R.Tezkratt, D.Utley, R.Wada, B.Xiao, J.B.Natowitz Study of the Violent Collisions between 63Cu + 232Th at 35 MeV/nucleon NUCLEAR REACTIONS 232Th(63Cu, X), (63Cu, F), E=35 MeV/nucleon; measured fission (fragment)(fragment)(θ), intermediate mass fragment-, neutron-, α-multiplicities; deduced hot, heavy composite nuclei decay, other aspects.
doi: 10.1103/PhysRevC.55.264
1997FA19 J.Phys.(London) G23, 1377 (1997) D.Fabris, G.Nebbia, G.Viesti, M.Lunardon, 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 in (α, α') Reactions at 60 MeV u-1 NUCLEAR REACTIONS 209Bi(α, α'), E=240 MeV; measured evaporated Eπ, Iπ, n, p, d, t, α multiplicities vs θ, Eα; deduced non-equilibrated processes dominance. Statistical model calculations.
doi: 10.1088/0954-3899/23/10/027
1997HA07 Phys.Rev. C55, 1371 (1997) F.Haddad, K.Hagel, J.Li, N.Mdeiwayeh, J.B.Natowitz, R.Wada, B.Xiao, C.David, M.Freslier, J.Aichelin Impact Parameter Determination in Experimental Analysis using a Neural Network NUCLEAR REACTIONS 40Ca(40Ca, X), E=35 MeV/nucleon; analyzed yield distribution and energy spectrum; deduced impact parameter distribution, two classes event separation evidence. Neural network approach.
doi: 10.1103/PhysRevC.55.1371
1997MA27 Phys.Rev. C55, 2991 (1997) Z.Majka, P.Staszel, J.Cibor, J.B.Natowitz, K.Hagel, J.Li, N.Mdeiwayeh, R.Wada, Y.Zhao Quantum Statistical Thermodynamics of Hot Finite Nuclear Systems: Temperatures and isotopic yield ratios NUCLEAR REACTIONS 197Au(197Au, X), E=600 MeV/nucleon; analyzed fragment temperatures; deduced nuclear caloric curve. Phenomenological formula.
doi: 10.1103/PhysRevC.55.2991
1997MD01 Nucl.Phys. A627, 137 (1997) N.Mdeiwayeh, R.Wada, K.Hagel, J.Li, Y.Lou, R.Tezkratt, D.Utley, B.Xiao, J.B.Natowitz, J.Cibor, Z.Majka The Dependence of Fission Time-Scales on Fragment Mass Asymmetry in the 20Ne + 165Ho Reaction at 50A MeV NUCLEAR REACTIONS 165Ho(20Ne, F), E=50 MeV/nucleon; fission (fragment)(α)-coin, multiplicities; deduced compound nucleus initial, scission energies. 178W deduced pre-scission times at high excitation. Monte Carlo simulation.
doi: 10.1016/S0375-9474(97)00408-9
1997WA01 Phys.Rev. C55, 227 (1997) R.Wada, R.Tezkratt, K.Hagel, F.Haddad, A.Kolomiets, Y.Lou, J.Li, M.Shimooka, S.Shlomo, D.Utley, B.Xiao, N.Mdeiwayeh, J.B.Natowitz, Z.Majka, J.Cibor, T.Kozik, Z.Sosin Excitation Energies and Temperatures of Hot Nuclei Produced in the Reactions of 63Cu + 197Au at 35A MeV NUCLEAR REACTIONS 197Au(63Cu, X), E=35 MeV/nucleon; measured energy, multiplicity of n, p, d, t, 3He, α, intermediate mass fragment (Z ≤ 10) heavy fragments (60 ≤ A ≤ 170)-coin, mass and velocity of heavy fragments; deduced temperatures, excitation energies of primary heavy fragments. Dynamical plus statistical model, QMD model simulations.
doi: 10.1103/PhysRevC.55.227
1996CI07 Phys.Lett. 383B, 372 (1996) M.Cinausero, G.Prete, D.Fabris, G.Nebbia, G.Viesti, G.X.Dai, K.Hagel, J.Li, Y.Lou, J.B.Natowitz, D.Utley, R.Wada, N.Gelli, F.Lucarelli, M.Colonna Entrance Channel Mass Asymmetry and the Decay of Hot Nuclei NUCLEAR REACTIONS 76Ge(86Kr, X), E=10 MeV/nucleon; 150Sm(16O, X), E=27 MeV/nucleon; measured α(evaporation residue)-coin, Eα, Iα; 100Mo(60Ni, X), E=655 MeV; analyzed data; deduced α-decay entrance channel mass asymmetry independence.
doi: 10.1016/0370-2693(96)00793-9
1996HA07 Phys.Rev. C53, 1437 (1996) F.Haddad, J.B.Natowitz, B.Jouault, V.de la Mota, G.Royer, F.Sebille Compressibility Probed by Linear Momentum Transfer NUCLEAR REACTIONS 238U(16O, X), E=20-70 MeV/nucleon; 154Sm, 238U(14N, X), 232Th(α, X), 58Ni, 238U(12C, X), 68Zn, 232Th, 197Au(40Ar, X), E not given; analyzed linear momentum transfer related features, compressibility characteristics for these, other reactions. Landau-Vlasov model.
doi: 10.1103/PhysRevC.53.1437
1995DA33 Chin.J.Nucl.Phys. 17, No 3, 228 (1995) G.X.Dai, J.B.Natowitz, R.Wada, K.Hagel, Q.Z.Luo, Z.Y.He, J.Blackadar, S.Lee, J.T.Li, Y.N.Lou, D.Utley, B.Xiao Projectile Fragmentation in 20Ne + 165Ho Reaction at 45 MeV/u NUCLEAR REACTIONS 165Ho(20Ne, X), E at 45 MeV/nucleon; measured fragment velocity energy, spectra for 3,4He, 6Li, 7,9Be, 10B, 12C, 14N, 16O; measured Fermi momentum reduced width. Projectile fragmentation.
1995FA04 Nucl.Phys. A583, 145c (1995) D.Fabris, G.Viesti, G.Nebbia, E.Fioretto, G.Prete, J.B.Natowitz, K.Hagel, R.Wada, M.Cinausero, F.Lucarelli, N.Gelli GDR Emission and First Chance Fission Probability in 200Pb NUCLEAR REACTIONS 181Ta(19F, F), E=90-140 MeV; measured fission fragment, γ-spectra, yield, γ multiplicities. 200Pb deduced fission probability vs energy, excitation, GDR decay features.
doi: 10.1016/0375-9474(94)00649-8
1995LO02 Nucl.Phys. A581, 373 (1995) Y.Lou, M.Gonin, R.Wada, K.Hagel, J.Li, B.Xiao, M.Gui, D.Utley, R.Tezkratt, L.Cooke, T.Botting, B.Hurst, D.O'Kelly, G.Mouchaty, R.P.Schmitt, W.Turmel, J.B.Natowitz, D.Fabris, G.Nebbia, G.Viesti, J.Ruiz, R.Burch, F.Gramegna, M.Poggi, G.Prete, M.E.Brandan, A.Menchaca-Rocha Light-Particle Evaporation as a Function of Neutron Excess for Medium-Mass Compound Nuclei with E(x) ≈ 2 MeV/u NUCLEAR REACTIONS 92,100Mo(63Cu, F), E=10 MeV/nucleon; 144,148,154Sm(20Ne, F), E=20 MeV/nucleon; measured fission (fragment)α-coin, proton, neutron, α-multiplicities, mass, total kinetic energy, linear momentum transfer distributions; deduced dynamic fission role. Statistical model analysis.
doi: 10.1016/0375-9474(94)00482-3
1995NA18 Phys.Rev. C52, R2322 (1995) J.B.Natowitz, K.Hagel, R.Wada, Z.Majka, P.Gonthier, J.Li, N.Mdeiwayeh, B.Xiao, Y.Zhao Limiting Temperatures of Neutron Rich Nuclei: A possible interpretation of data from isotope yield ratios NUCLEAR REACTIONS 197Au(197Au, X), E=600 MeV/nucleon; analyzed He, Li isotopes yield ratios data; deduced neutron rich nuclei limiting temperature related features.
doi: 10.1103/PhysRevC.52.R2322
1995SC55 Nucl.Instrum.Methods Phys.Res. A354, 487 (1995) R.P.Schmitt, L.Cooke, G.Derrig, D.Fabris, B.Hurst, J.B.Natowitz, G.Nebbia, D.O'Kelly, B.K.Srivastava, W.Turmel, D.Utley, H.Utsunomiya, R.Wada A Flexible 4π Neutron Detector for In-Beam Studies: The Texas A and M neutron ball RADIOACTIVITY 252Cf(SF); measured neutron multiplicity distribution; deduced detector response. 4π ' neutron ball '. Monte Carlo simulations.
doi: 10.1016/0168-9002(94)01029-3
1994CH17 Nucl.Phys. A569, 93c (1994) R.K.Choudhury, K.L.Wolf, H.Jabs, J.Schoemaker, J.B.Natowitz, K.Hagel, Y.Lou, R.Wada, R.P.Schmitt, W.Turmel, H.Xu Giant Dipole Resonance Gamma Decay of 142Nd Nuclei Produced by 16O + 126Te and 22Ne + 120Sn Reactions at E(*) = 150 MeV NUCLEAR REACTIONS 126Te(16O, X), E=179 MeV; 120Sn(22Ne, X), E=193 MeV; measured particle, γ-spectra. 142Nd deduced GDR parameters, no entrance channel effects.
doi: 10.1016/0375-9474(94)90099-X
1994DA03 Nucl.Phys. A568, 601 (1994) G.X.Dai, J.B.Natowitz, R.Wada, Y.N.Lou, K.Hagel, B.Xiao Symmetric Multi-Fragmentation Barriers and Their Temperature Dependence in Medium and Heavy Mass Nuclei NUCLEAR STRUCTURE 139La, 159Tb, 208Pb, 238U, 252Cf; calculated fission potential vs fragment elongation, barrier vs temperature. Generalized cassinian ovaloid shape parametrization.
doi: 10.1016/0375-9474(94)90396-4
1994FA09 Phys.Rev. C50, R1261 (1994) D.Fabris, E.Fioretto, G.Viesti, M.Cinausero, N.Gelli, K.Hagel, F.Lucarelli, J.B.Natowitz, G.Nebbia, G.Prete, R.Wada Alpha Particle Emission as a Probe of the Level Density in Highly Excited A ≈ 200 Nuclei NUCLEAR REACTIONS 181Ta(19F, xnypzα), E=90-140 MeV; measured α spectra, multiplicites; deduced level density parameter a vs excitation energy in compound nuclei. Statistical model calculations.
doi: 10.1103/PhysRevC.50.R1261
1994FA15 Phys.Rev.Lett. 73, 2676 (1994) D.Fabris, G.Viesti, E.Fioretto, M.Cinausero, N.Gelli, K.Hagel, F.Lucarelli, J.B.Natowitz, G.Nebbia, G.Prete, R.Wada Excitation Energy Dependence of the Fission Probability in 200Pb Compound Nuclei NUCLEAR REACTIONS 181Ta(19F, F), (19F, X), E=90-140 MeV; measured fission (fragment)γ-, (evaporation residue)γ-coin. 200Pb deduced fission partial width damping.
doi: 10.1103/PhysRevLett.73.2676
1994HA34 Phys.Rev. C50, 2017 (1994) K.Hagel, M.Gonin, R.Wada, J.B.Natowitz, F.Haddad, Y.Lou, M.Gui, D.Utley, B.Xiao, J.Li, G.Nebbia, D.Fabris, G.Prete, J.Ruiz, D.Drain, B.Chambon, B.Cheynis, D.Guinet, X.C.Hu, A.Demeyer, C.Pastor, A.Giorni, A.Lleres, P.Stassi, J.B.Viano, P.Gonthier Violent Collisions and Multifragment Final States in the 40Ca + 40Ca Reaction at 35 MeV/nucleon NUCLEAR REACTIONS 40Ca(40Ca, X), (40Ar, X), E=35 MeV/nucleon; measured fragment yield distributions, energy spectra, σ(fragment, θ), charged particle, neutron multiplicity; deduced charge distribution moments, multi-fragment probability, inpact parameter distributions. Quantum molecular dynamics model analysis. AMPHORA 4π charged particle detector, neutron ball.
doi: 10.1103/PhysRevC.50.2017
1994UT01 Phys.Rev. C49, R1737 (1994) D.Utley, R.Wada, K.Hagel, J.Li, X.Bin, M.Gui, Y.Lou, R.Tezkratt, J.B.Natowitz, M.Gonin Excitation Energy Deposition in Central Collisions of 40A MeV 40Ar with 232Th NUCLEAR REACTIONS 232Th(40Ar, X), E=40 MeV/nucleon; measured (fragment)n-coin; deduced excitation energy deposition features, reaction mechanism.
doi: 10.1103/PhysRevC.49.R1737
1993GU09 Phys.Rev. C48, 1791 (1993) M.Gui, K.Hagel, R.Wada, Y.Lou, D.Utley, B.Xiao, J.Li, J.B.Natowitz, G.Enders, W.Kuhn, V.Metag, R.Novotny, O.Schwalb, R.J.Charity, R.Freifelder, A.Gobbi, W.Henning, K.D.Hildenbrand, R.Mayer, R.S.Simon, J.P.Wessels, G.Casini, A.Olmi, A.A.Stefanini Mass Asymmetry Dependence of Scission Times in the Reactions of 18.5 A MeV 136Xe + 48Ti NUCLEAR REACTIONS 48Ti(136Xe, X), (136Xe, F), E=18.5 MeV/nucleon; measured (fragment)(fragment)-coin, σ(fragment A) vs total kinetic energy, fission (fragment)α-, (fragment)p-coin, multiplicities; deduced energies at scission.
doi: 10.1103/PhysRevC.48.1791
1993MI17 Z.Phys. A346, 227 (1993) U.Milkau, M.L.Begemann-Blaich, E.-M.Eckert, G.Imme, P.Kreutz, A.Kuhmichel, M.Lattuada, U.Lynen, C.Mazur, W.F.J.Muller, J.B.Natowitz, C.Ngo, J.Pochodzalla, G.Raciti, M.Ribrag, H.Sann, W.Trautmann, R.Trockel Inclusive Fragment Production in 84Kr + 197Au at E/A = 35 MeV NUCLEAR REACTIONS 197Au(84Kr, X), E=35 MeV/nucleon; measured σ(fragment θ, E) for X=Li-Ar; deduced moving source parameters, multi-fragment processes evidence.
doi: 10.1007/BF01306083
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