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NSR database version of May 24, 2024.

Search: Author = V.V.Kirakosyan

Found 15 matches.

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2022KO03      Phys.Rev. C 105, 014607 (2022)

E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, Y.S.Mukhamejanov, A.A.Bogachev, K.V.Novikov, V.V.Kirakosyan, D.Kumar, T.Banerjee, M.Cheralu, M.Maiti, R.Prajapat, R.Kumar, G.Sarkar, W.H.Trzaska, A.N.Andreyev, I.M.Harca, A.Mitu, E.Vardaci

Fission of 180, 182, 183Hg* and 178Pt* nuclei at intermediate excitation energies

NUCLEAR REACTIONS 142Nd(36Ar, F)178Pt*, E=158, 169, 181 MeV; 144Sm(36Ar, F)180Hg*, E=158, 181 MeV; 142,143Nd(40Ca, F)182Hg*/183Hg*, E=158, 169, 181 MeV; measured binary reaction products in coincidence mode using the double-arm time-of-flight spectrometer CORSET, consisting of a compact start detector and a position-sensitive stop detector of microchannel plates at the U400 cyclotron Flerov laboratory of Nuclear Reactions, Dubna; deduced mass-energy distributions of fission fragments at energies near and above the Coulomb barrier, mass-total kinetic energy (M-TKE) distribution contours of primary binary fragments, mass yields, fission fragments mass yields, asymmetric fission of preactinide nuclei, existence of well-deformed proton shell at Z≈36 and a less deformed proton shell at Z≈46. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.105.014607
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2021BO22      Phys.Rev. C 104, 024623 (2021)

A.A.Bogachev, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, K.V.Novikov, D.Kumar, T.Banerjee, I.N.Diatlov, M.Cheralu, V.V.Kirakosyan, Y.S.Mukhamejanov, A.N.Pan, I.V.Pchelintsev, R.S.Tikhomirov, I.V.Vorobiev, M.Maiti, R.Prajapat, R.Kumar, G.Sarkar, W.H.Trzaska, A.N.Andreyev, I.M.Harca, E.Vardaci

Asymmetric and symmetric fission of excited nuclei of 180, 190Hg and 184, 192, 202Pb formed in the reactions with 36Ar and 40, 48Ca ions

NUCLEAR REACTIONS 144Sm(36Ar, X)180Hg*, E=158, 181 MeV; 154Sm(36Ar, X)190Hg*, E=158, 181 MeV; 144Sm(40Ca, X)184Pb*, E=180, 190 MeV; 144Sm(48Ca, X)192Pb*, E=182, 188, 202 MeV; 154Sm(48Ca, X)202Pb*, E=173, 183, 194 MeV; measured binary reaction products in coincidence mode from the excited states of the compound nuclei using the double-arm time-of-flight spectrometer CORSET at the U400 cyclotron facility of Flerov Laboratory of Nuclear Reactions (FLNR), Dubna; deduced mass-total kinetic energy (TKE) distributions of binary fragments, mass and TKE distributions of fission fragments, contributions of symmetric and asymmetric fissions, well deformed proton shell at Z≈36 and less deformed proton shell at Z≈46.

doi: 10.1103/PhysRevC.104.024623
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2020KO09      Eur.Phys.J. A 56, 6 (2020)

E.M.Kozulin, I.M.Harca, E.Vardaci, I.Matea, A.Maj, I.Itkis, G.Knyazheva, K.Novikov, O.Dorvaux, M.Ciemala, S.Brambilla, N.Kozulina, I.V.Kolesov, E.Saveleva, V.V.Kirakosyan, C.Schmitt, C.Borcea, S.Calinescu, C.Petrone, M.Ashaduzzaman, B.DeCanditiis, A.Pulcini, D.Quero, P.Rath, A.di Nitto, G.La Rana, A.Bracco, F.Camera, O.Stezowski, J.Wilson, D.Verney, W.H.Trzaska, for the SPS and the PARIS collaboration

Features of the Fission Fragments Formed in the Heavy Ion induced 32S +197Au reaction near the interaction barrier

doi: 10.1140/epja/s10050-019-00019-5
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2020VA06      Phys.Rev. C 101, 064612 (2020)

E.Vardaci, A.Pulcini, E.M.Kozulin, I.Matea, D.Verney, A.Maj, C.Schmitt, I.M.Itkis, G.N.Knyazheva, K.Novikov, N.Kozulina, I.M.Harca, I.V.Kolesov, K.Saveleva, V.V.Kirakosyan, O.Dorvaux, M.Ciemala, S.Brambilla, M.Ashaduzzaman, B.De Canditiis, A.Di Nitto, D.Quero, C.Parascandolo, D.Pierroutsakou, P.K.Rath, G.Sposito, G.La Rana, A.Bracco, F.Camera, O.Stezowski, C.Borcea, S.Calinescu, C.Petrone, J.Wilson

Using γ rays to disentangle fusion-fission and quasifission near the Coulomb barrier: A test of principle in the fusion-fission and quasielastic channels

NUCLEAR REACTIONS 197Au(32S, X), E=166 MeV; measured fragments and γ rays in singles, (fragment)(fragment)-coin, prompt γ(binary fragments)-coin using the two-arm TOF spectrometer CORSET time-of-flight spectrometer for fragments, ORGAM array of Ge detectors, and PARIS array of scintillation detectors for γ rays at the ALTO facility of IPN-Orsay; deduced total kinetic energy and mass yield (TKE-mass) distributions, γ-fold and multiplicity distributions. Comparison with theoretical calculations using GEF code. Discussion of γ multiplicity as a method for differentiating fusion-fission (FF) and quasifission (QF) events. 129La; deduced 756-, 869-, and 888-keV γ transition between high angular momentum states in coincidence with fission fragments.

doi: 10.1103/PhysRevC.101.064612
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2019AV02      Bull.Rus.Acad.Sci.Phys. 83, 399 (2019)

S.P.Avdeyev, W.Karcz, V.V.Kirakosyan, P.A.Rukoyatkin, V.I.Stegaylov, A.S.Botvina

Radial Flow in the Interaction of Relativistic Deuterons with a Gold Target

doi: 10.3103/S106287381904004X
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2016AV01      Bull.Rus.Acad.Sci.Phys. 80, 330 (2016)

S.P.Avdeyev, V.A.Karnaukhov, W.Karcz, V.V.Kirakosyan, P.A.Rukoyatkin, V.I.Stegaylov, H.Oeschler, A.S.Botvina

Source velocity at relativistic beams of 4He

NUCLEAR REACTIONS 197Au(α, x), E=4, 14.6 GeV; measured intermediate mass fragment spectra using 4π FASA setup composed from ΔE-E and CsI(Tl) detector telescopes; deduced invariant σ, σ(θ), source velocities.

doi: 10.3103/S1062873816030047
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2010AV03      Bull.Rus.Acad.Sci.Phys. 74, 559 (2010); Izv.Akad.Nauk RAS, Ser.Fiz 74, 592 (2010)

S.P.Avdeyev, V.A.Karnaukhov, H.Oeschler, V.V.Kirakosyan, P.A.Rukoyatkin, A.Budzanowski, W.Karcz, E.Norbeck, A.S.Botvina

Emission time of the intermediate mass fragments in collisions of relativistic deuterons with the gold target

NUCLEAR REACTIONS Au(d, X), E=4.4 GeV; measured reaction fragments; deduced relative velocity correlation function.

doi: 10.3103/S1062873810040295
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2008KA42      Phys.Atomic Nuclei 71, 2067 (2008)

V.A.Karnaukhov, H.Oeschler, A.Budzanowski, S.P.Avdeyev, A.S.Botvina, E.A.Cherepanov, W.Karcz, V.V.Kirakosyan, P.A.Rukoyatkin, I.Skwirczynska, E.Norbeck

Critical temperature for the nuclear liquid-gas phase transition (from multifragmentation and fission)

doi: 10.1134/S1063778808120077
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2006KA35      Phys.Atomic Nuclei 69, 1142 (2006)

V.A.Karnaukhov, H.Oeschler, A.Budzanowski, S.P.Avdeyev, V.V.Kirakosyan, V.K.Rodionov, P.A.Rukoyatkin, A.V.Simonenko, W.Karcz, I.Skwirczynska, E.A.Kuzmin, E.Norbeck, A.S.Botvina

Liquid-Fog and Liquid-Gas Phase Transitions in Hot Nuclei

NUCLEAR REACTIONS Au(p, X), E=8.1 GeV; analyzed fragments kinetic energy and charge distributions, emission times; deduced volume parameters, phase transition features.

doi: 10.1134/S1063778806070076
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2006KA52      Nucl.Phys. A780, 91 (2006)

V.A.Karnaukhov, S.P.Avdeyev, A.S.Botvina, A.Budzanowski, L.V.Chulkov, B.Czech, W.Karcz, V.V.Kirakosyan, E.A.Kuzmin, E.Norbeck, H.Oeschler, V.K.Rodionov, P.A.Rukoyatkin, A.V.Simonenko, I.Skwirczynska

Nuclear multifragmentation and fission: Similarity and differences

NUCLEAR REACTIONS 197Au(p, X), E=8.1 GeV; analyzed fragment charge and kinetic energy distributions, emission time; deduced chemical and kinetic freeze-out volumes.

doi: 10.1016/j.nuclphysa.2006.09.017
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2005BU13      Acta Phys.Pol. B36, 1203 (2005)

A.Budzanowski, V.A.Karnaukhov, H.Oeschler, S.P.Avdeyev, V.K.Rodionov, V.V.Kirakosyan, A.V.Simonenko, P.A.Rukoyatkin, W.Karcz, I.Skwirczynska, E.A.Kuzmin, L.V.Chulkov, E.Norbeck, A.S.Botvina

Phase transitions in highly excited nuclei

NUCLEAR REACTIONS 197Au(p, X), E=8.1 GeV; analyzed fragment charge and energy distributions, multiplicities, related data; deduced spinodal decomposition, phase transition features. Statistical multifragmentation model.


2005KA08      Nucl.Phys. A749, 65c (2005)

V.A.Karnaukhov, H.Oeschler, S.P.Avdeyev, V.K.Rodionov, V.V.Kirakosyan, A.V.Simonenko, P.A.Rukoyatkin, A.Budzanowski, W.Karcz, I.Skwirczynska, E.A.Kuzmin, L.V.Chulkov, E.Norbeck, A.S.Botvina

Spinodal decomposition, nuclear fog and two characteristic volumes in thermal multifragmentation

NUCLEAR REACTIONS Au(p, X), E=8.1 GeV; analyzed intermediate mass fragments charge distributions, kinetic energy spectra; deduced volume parameters, phase transition features.

doi: 10.1016/j.nuclphysa.2004.12.009
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2004KA23      Nucl.Phys. A734, 520 (2004)

V.A.Karnaukhov, H.Oeschler, S.P.Avdeyev, V.K.Rodionov, A.V.Simomenko, V.V.Kirakosyan, A.Budzanowski, W.Karcz, I.Skwirczynska, E.A.Kuzmin, E.Norbeck, A.S.Botvina

Multifragmentation and nuclear phase transitions (liquid-fog and liquid-gas)

NUCLEAR REACTIONS Au(p, X), E=3.6, 8.1 GeV; analyzed intermediate mass fragment charge distributions; deduced phase transition temperature. Statistical multifragmentation model.

doi: 10.1016/j.nuclphysa.2004.01.095
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2004KA55      Phys.Rev. C 70, 041601 (2004)

V.A.Karnaukhov, H.Oeschler, S.P.Avdeyev, V.K.Rodionov, V.V.Kirakosyan, A.V.Simonenko, P.A.Rukoyatkin, A.Budzanowski, W.Karcz, I.Skwirczynska, E.A.Kuzmin, L.V.Chulkov, E.Norbeck, A.S.Botvina

Two characteristic volumes in thermal nuclear multifragmentation

NUCLEAR REACTIONS 197Au(p, X), E=8.1 GeV; measured intermediate mass fragment charge distributions, kinetic energy spectra, related features; deduced volume parameters, two characteristic volumes. Statistical multifragmentation model.

doi: 10.1103/PhysRevC.70.041601
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2002RO11      Nucl.Phys. A700, 457 (2002)

V.K.Rodionov, S.P.Avdeyev, V.A.Karnaukhov, L.A.Petrov, V.V.Kirakosyan, P.A.Rukoyatkin, H.Oeschler, A.Budzanowski, W.Karcz, M.Janicki, O.V.Bochkarev, E.A.Kuzmin, L.V.Chulkov, E.Norbeck, A.S.Botvina

Time Scale of the Thermal Multifragmentation in p + Au Collisions at 8.1 GeV

NUCLEAR REACTIONS 197Au(p, X), E=8.1 GeV; measured intermediate mass fragments charge, energy distributions, angular correlations; deduced time scale. FASA detector array. Comparison with model predictions.

doi: 10.1016/S0375-9474(01)01307-0
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