NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = T.Keutgen Found 50 matches. 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
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
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
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
2016RE14 Phys.Rev. C 94, 024619 (2016) F.Renzi, R.Raabe, G.Randisi, D.Smirnov, C.Angulo, J.Cabrera, E.Casarejos, Th.Keutgen, A.Ninane, J.L.Charvet, A.Gillibert, V.Lapoux, L.Nalpas, A.Obertelli, F.Skaza, J.L.Sida, N.A.Orr, S.I.Sidorchuk, R.Wolski, M.J.G.Borge, D.Escrig Spectroscopy of 7He using the 9Be(6He, 8Be) transfer reaction NUCLEAR REACTIONS 9Be(6He, 8Be)7He, E=16.8 MeV, [secondary 6He beam was produced in 7Li(p, 2p) by ISOL method]; measured particle spectra, time of flight, two-dimensional energy spectra of a1 and a2 in coincidence mode using annular single-sided silicon detector arrays at Cyclotron Research Center (CRC) in Louvain-la-Neuve; reconstructed relative energy of the two a particles, center-of-mass energy of 6He+n system. 7He; deduced excitation energy spectrum, levels, resonances, J, p, width, spectroscopic factors using R-matrix analysis. Comparison with previous experimental results. 9Be(6Li, 8Be)7Li E=17 MeV; measured a1 and a2 particle spectra, time of flight, two-dimensional energy spectra. 7Li; deduced excitation energy spectrum.
doi: 10.1103/PhysRevC.94.024619
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
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
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
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
2013ST13 Phys.Rev. C 87, 064603 (2013) L.Standylo, L.Acosta, C.Angulo, R.Berjillos, J.A.Duenas, M.S.Golovkov, N.Keeley, T.Keutgen, I.Martel, M.Mazzocco, F.Perez-Bernal, A.M.Sanchez-Benitez, C.Signorini, M.Romoli, K.Rusek, R.Wolski Breakup and neutron-transfer effects on 6He+206Pb elastic scattering below the Coulomb barrier NUCLEAR REACTIONS 206Pb(6He, 6He), [6He secondary beam from 7Li(p, 2p), E=30 MeV primary reaction], E=18 MeV; measured α and 6He spectra, σ(θ) for α particles, α-yields using the LEDA array of Si detectors at CRCLN facility in Belgium. Analysis of data by continuum-discretized coupled-channels (CDCC), DWBA, and coupled reaction channels (CRC) calculations, including breakup effects, one-neutron and two-neutron transfers.
doi: 10.1103/PhysRevC.87.064603
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
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
2011WO05 Eur.Phys.J. A 47, 111 (2011) R.Wolski, I.Martel, L.Standylo, L.Acosta, J.L.Aguado, C.Angulo, R.Berjillos, J.P.Bolivar, J.A.Duenas, M.S.Golovkov, T.Keutgen, M.Mazzocco, A.Padilla, A.M.Sanchez-Benitez, C.Signorini, M.Romoli, K.Rusek Sub-barrier fusion of 6He with 206Pb NUCLEAR REACTIONS 208Pb(6He, 2n), E=14-18 MeV;208Pb(6He, 6He), E=18.0 MeV; measured E(particle), I(particle, θ), Eγ, Iγ; deduced σ using activation method, elastic scattering σ(θ). Comparison with other data.
doi: 10.1140/epja/i2011-11111-7
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
2010DE37 Phys.Rev. C 82, 054606 (2010) P.Demetriou, Th.Keutgen, R.Prieels, Y.El Masri Fission properties of actinide nuclei from proton-induced fission at 26.5 and 62.9 MeV incident proton energies NUCLEAR REACTIONS 232Th, 237Np, 238U, 239Pu, 241Am(p, X), E=26.5, 62.9 MeV; analyzed total fission σ, total mass distributions of fission fragments, excitation energy distribution of the fissioning systems, pre- and post-scission neutron multiplicities using the reaction code TALYS.
doi: 10.1103/PhysRevC.82.054606
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
2010MA29 Eur.Phys.J. A 43, 153 (2010) M.Majer, R.Raabe, M.Milin, C.Angulo, J.Cabrera, E.Casarejos, J.L.Charvet, D.Escrig, A.Gillibert, Th.Keutgen, V.Lapoux, L.Nalpas, A.Ninane, A.Obertelli, N.A.Orr, F.Skaza, J.L.Sida, S.I.Sidorchuk, D.Smirnov, R.Wolski 6He + 9Be reactions at 16.8 MeV NUCLEAR REACTIONS 9Be(6He, 6He), (6He, α), E=16.8 MeV; measured reaction products; deduced σ(θ), total energy, 11Be excitation energy spectrum. Comparison with continuum-discretised coupled-channel method (CDCC) calculations.
doi: 10.1140/epja/i2010-10906-2
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
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
2008IS03 Nucl.Phys. A809, 1 (2008) S.Isaev, R.Prieels, Th.Keutgen, J.Van Mol, Y.El Masri, P.Demetriou Proton-induced fission on actinide nuclei at energies 27 and 63 MeV NUCLEAR REACTIONS 232Th, 238U, 237Np, 239Pu, 241Am(p, F), E=26.5, 62.9 MeV; measured fission σ, fission fragment mass and energy distributions, neutron multiplicities and angular distributions; deduced fission reaction features using multi-source analysis. Comparison with the TALYS code.
doi: 10.1016/j.nuclphysa.2008.05.012
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
2007MI47 Eur.Phys.J. Special Topics 150, 43 (2007) M.Milin, A.Maggio, L.Acosta, M.A.G.Alvarez, C.Angulo, E.Casarejos, N.de Sereville, A.Di Pietro, P.Figuera, M.Fisichella, M.Freer, Th.Keutgen, M.Lattuada, M.Majer, I.Martel, D.Miljanic, F.Pansini, D.Price, A.M.Sanchez-Benitez, N.Soic, M.Uroic, M.Zadro Reactions induced by 35MeV 6He beam on 12C and 14C
doi: 10.1140/epjst/e2007-00262-0
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
2006DU11 Nucl.Phys. A773, 24 (2006) Ch.Dufauquez, Y.El Masri, V.Roberfroid, J.Cabrera, Th.Keutgen, J.Van Mol, P.Demetriou, R.Charity Light charged particle and neutron production in proton- and α-particle-induced reactions on natSi at energies between 20 and 65 MeV NUCLEAR REACTIONS Si(p, pX), (p, dX), (p, tX), (p, 3HeX), (p, αX), (p, 6LiX), (p, 7LiX), (p, 7BeX), E=26.5, 48.5, 62.9 MeV; Si(α, pX), (α, dX), (α, tX), (α, 3HeX), (α, αX), (α, 6LiX), (α, 7LiX), (α, 7BeX), E=25.4, 45.5, 57.8 MeV; measured light charged particle spectra, σ, σ(E, θ), (charged-particle)n-coin, neutron multiplicities vs energy and angle; deduced reaction mechanism features. Comparison with model predictions and previous results.
doi: 10.1016/j.nuclphysa.2006.04.005
2006RY02 Nucl.Instrum.Methods Phys.Res. A562, 439 (2006) I.V.Ryzhov, G.A.Tutin, A.G.Mitryukhin, V.S.Oplavin, S.M.Soloviev, J.Blomgren, P.-U.Renberg, J.P.Meulders, Y.El Masri, Th.Keutgen, R.Prieels, R.Nolte Measurements of neutron-induced fission cross-sections of 205Tl, 204, 206, 207, 208Pb and 209Bi with a multi-section Frisch-gridded ionization chamber NUCLEAR REACTIONS 205Tl, 204,206,207,208Pb, 209Bi(n, F), E=30-180 MeV; measured fission σ. Multi-section Frisch-gridded ionization chamber, comparison with previous results.
doi: 10.1016/j.nima.2006.03.021
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
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
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
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
2001ME30 Pramana 57, 85 (2001) J.-P.Meulders, I.Slypen, S.Benck, E.Raeymackers, J.Cabrera, Ch.Dufauquez, T.Keutgen, V.Roberfroid, I.Tilquin, Y.El Masri, V.Corcalciuc, N.Nica Neutron-Induced Reaction Cross-Section Measurements using a Small Multi-Detector Array and Description of a Large Array
doi: 10.1007/s12043-001-0159-9
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
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
1997LE09 Nucl.Phys. A620, 327 (1997) F.R.Lecolley, B.Benoit, G.Bizard, G.Costa, O.Dorvaux, D.Durand, Y.El Masri, G.Guillaume, F.Gulminelli, F.Hanappe, B.Heusch, A.Huck, T.Keutgen, C.Le Brun, F.Lefebvres, M.Louvel, A.Ninane, R.Regimbart, G.Rudolf, J.C.Steckmeyer, L.Stuttge, B.Tamain, I.Tilquin Highest Temperatures Sustainable in Heavy Nuclei Produced in Ar + Au Collisions at 60A MeV NUCLEAR REACTIONS 197Au(Ar, X), E=60 MeV/nucleon; measured fragment kinematical characteristics, nn-coin; deduced total residue production σ, hot nuclei decay model. Microscopic transport model.
doi: 10.1016/S0375-9474(97)00066-3
1995TI10 Nucl.Instrum.Methods Phys.Res. A365, 446 (1995) I.Tilquin, Y.El Masri, M.Parlog, Ph.Collon, M.Hadri, Th.Keutgen, J.Lehmann, P.Leleux, P.Lipnik, A.Ninane, F.Hanappe, G.Bizard, D.Durand, P.Mosrin, J.Peter, R.Regimbart, B.Tamain Detection Efficiency of the Neutron Modular Detector DEMON and Related Characteristics NUCLEAR REACTIONS 12C(n, n'γ), E=8-21 MeV; measured neutron tof spectra; deduced detection efficiency, cross talk efficiency, nγ-, n(charged particle)-discrimination related characteristics. DEMON detector array.
doi: 10.1016/0168-9002(95)00425-4
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