Droplet formation in expanding nuclear matter

A system-size dependent study

W. Reisdorf, F. Rami, B. De Schauenburg, Y. Leifels, J. P. Alard, A. Andronic, V. Barret, Z. Basrak, N. Bastid, M. L. Benabderrahmane, R. Čaplar, P. Crochet, P. Dupieux, M. Dželalija, Z. Fodor, A. Gobbi, Y. Grishkin, O. N. Hartmann, N. Herrmann, K. D. Hildenbrand & 31 others B. Hong, J. Kecskeméti, Y. J. Kim, M. Kirejczyk, P. Koczoń, M. Korolija, R. Kotte, T. Kress, A. Lebedev, X. Lopez, M. Merschmeyer, J. Mösner, W. Neubert, D. Pelte, M. Petrovici, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, M. Stockmeier, G. Stoicea, Z. Tymiński, P. Wagner, K. Wiśniewski, D. Wohlfarth, Z. G. Xiao, I. Yushmanov, A. Zhilin

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Cluster production is investigated in central collisions of Ca+Ca, Ni+Ni, 96Zr+96Zr, 96Ru+96Ru, Xe+CsI and Au+Au reactions at 0.4 AGeV incident energy. We find that the multiplicity of clusters with charge Z≥3 grows quadratically with the system's total charge and is associated with a midrapidity source with increasing transverse velocity fluctuations. When reduced to the same number of available charges, an increase of cluster production by about a factor of 5.5 is observed in the midrapidity region between the lightest system (Ca+Ca) and the heaviest one (Au+Au). The results, as well as simulations using quantum molecular dynamics, suggest a collision process where droplets, i.e., nucleon clusters, are created in an expanding, gradually cooling, nucleon gas. Within this picture, expansion dynamics, collective radial flow and cluster formation are closely linked as a result of the combined action of nucleon-nucleon scatterings and the mean fields.

Original languageEnglish
Pages (from-to)118-126
Number of pages9
JournalPhysics Letters B
Volume595
Issue number1-4
DOIs
Publication statusPublished - Aug 12 2004

Fingerprint

radial flow
nucleon-nucleon scattering
collisions
molecular dynamics
cooling
expansion
gases
simulation
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Reisdorf, W., Rami, F., De Schauenburg, B., Leifels, Y., Alard, J. P., Andronic, A., ... Zhilin, A. (2004). Droplet formation in expanding nuclear matter: A system-size dependent study. Physics Letters B, 595(1-4), 118-126. https://doi.org/10.1016/j.physletb.2004.05.031

Droplet formation in expanding nuclear matter : A system-size dependent study. / Reisdorf, W.; Rami, F.; De Schauenburg, B.; Leifels, Y.; Alard, J. P.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Benabderrahmane, M. L.; Čaplar, R.; Crochet, P.; Dupieux, P.; Dželalija, M.; Fodor, Z.; Gobbi, A.; Grishkin, Y.; Hartmann, O. N.; Herrmann, N.; Hildenbrand, K. D.; Hong, B.; Kecskeméti, J.; Kim, Y. J.; Kirejczyk, M.; Koczoń, P.; Korolija, M.; Kotte, R.; Kress, T.; Lebedev, A.; Lopez, X.; Merschmeyer, M.; Mösner, J.; Neubert, W.; Pelte, D.; Petrovici, M.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Stockmeier, M.; Stoicea, G.; Tymiński, Z.; Wagner, P.; Wiśniewski, K.; Wohlfarth, D.; Xiao, Z. G.; Yushmanov, I.; Zhilin, A.

In: Physics Letters B, Vol. 595, No. 1-4, 12.08.2004, p. 118-126.

Research output: Contribution to journalArticle

Reisdorf, W, Rami, F, De Schauenburg, B, Leifels, Y, Alard, JP, Andronic, A, Barret, V, Basrak, Z, Bastid, N, Benabderrahmane, ML, Čaplar, R, Crochet, P, Dupieux, P, Dželalija, M, Fodor, Z, Gobbi, A, Grishkin, Y, Hartmann, ON, Herrmann, N, Hildenbrand, KD, Hong, B, Kecskeméti, J, Kim, YJ, Kirejczyk, M, Koczoń, P, Korolija, M, Kotte, R, Kress, T, Lebedev, A, Lopez, X, Merschmeyer, M, Mösner, J, Neubert, W, Pelte, D, Petrovici, M, Schüttauf, A, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Stockmeier, M, Stoicea, G, Tymiński, Z, Wagner, P, Wiśniewski, K, Wohlfarth, D, Xiao, ZG, Yushmanov, I & Zhilin, A 2004, 'Droplet formation in expanding nuclear matter: A system-size dependent study', Physics Letters B, vol. 595, no. 1-4, pp. 118-126. https://doi.org/10.1016/j.physletb.2004.05.031
Reisdorf W, Rami F, De Schauenburg B, Leifels Y, Alard JP, Andronic A et al. Droplet formation in expanding nuclear matter: A system-size dependent study. Physics Letters B. 2004 Aug 12;595(1-4):118-126. https://doi.org/10.1016/j.physletb.2004.05.031
Reisdorf, W. ; Rami, F. ; De Schauenburg, B. ; Leifels, Y. ; Alard, J. P. ; Andronic, A. ; Barret, V. ; Basrak, Z. ; Bastid, N. ; Benabderrahmane, M. L. ; Čaplar, R. ; Crochet, P. ; Dupieux, P. ; Dželalija, M. ; Fodor, Z. ; Gobbi, A. ; Grishkin, Y. ; Hartmann, O. N. ; Herrmann, N. ; Hildenbrand, K. D. ; Hong, B. ; Kecskeméti, J. ; Kim, Y. J. ; Kirejczyk, M. ; Koczoń, P. ; Korolija, M. ; Kotte, R. ; Kress, T. ; Lebedev, A. ; Lopez, X. ; Merschmeyer, M. ; Mösner, J. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Schüttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczyńska, K. ; Smolyankin, V. ; Stockmeier, M. ; Stoicea, G. ; Tymiński, Z. ; Wagner, P. ; Wiśniewski, K. ; Wohlfarth, D. ; Xiao, Z. G. ; Yushmanov, I. ; Zhilin, A. / Droplet formation in expanding nuclear matter : A system-size dependent study. In: Physics Letters B. 2004 ; Vol. 595, No. 1-4. pp. 118-126.
@article{fb9208a7fd05457dbbbfd0f1b19694ae,
title = "Droplet formation in expanding nuclear matter: A system-size dependent study",
abstract = "Cluster production is investigated in central collisions of Ca+Ca, Ni+Ni, 96Zr+96Zr, 96Ru+96Ru, Xe+CsI and Au+Au reactions at 0.4 AGeV incident energy. We find that the multiplicity of clusters with charge Z≥3 grows quadratically with the system's total charge and is associated with a midrapidity source with increasing transverse velocity fluctuations. When reduced to the same number of available charges, an increase of cluster production by about a factor of 5.5 is observed in the midrapidity region between the lightest system (Ca+Ca) and the heaviest one (Au+Au). The results, as well as simulations using quantum molecular dynamics, suggest a collision process where droplets, i.e., nucleon clusters, are created in an expanding, gradually cooling, nucleon gas. Within this picture, expansion dynamics, collective radial flow and cluster formation are closely linked as a result of the combined action of nucleon-nucleon scatterings and the mean fields.",
author = "W. Reisdorf and F. Rami and {De Schauenburg}, B. and Y. Leifels and Alard, {J. P.} and A. Andronic and V. Barret and Z. Basrak and N. Bastid and Benabderrahmane, {M. L.} and R. Čaplar and P. Crochet and P. Dupieux and M. Dželalija and Z. Fodor and A. Gobbi and Y. Grishkin and Hartmann, {O. N.} and N. Herrmann and Hildenbrand, {K. D.} and B. Hong and J. Kecskem{\'e}ti and Kim, {Y. J.} and M. Kirejczyk and P. Koczoń and M. Korolija and R. Kotte and T. Kress and A. Lebedev and X. Lopez and M. Merschmeyer and J. M{\"o}sner and W. Neubert and D. Pelte and M. Petrovici and A. Sch{\"u}ttauf and Z. Seres and B. Sikora and Sim, {K. S.} and V. Simion and K. Siwek-Wilczyńska and V. Smolyankin and M. Stockmeier and G. Stoicea and Z. Tymiński and P. Wagner and K. Wiśniewski and D. Wohlfarth and Xiao, {Z. G.} and I. Yushmanov and A. Zhilin",
year = "2004",
month = "8",
day = "12",
doi = "10.1016/j.physletb.2004.05.031",
language = "English",
volume = "595",
pages = "118--126",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1-4",

}

TY - JOUR

T1 - Droplet formation in expanding nuclear matter

T2 - A system-size dependent study

AU - Reisdorf, W.

AU - Rami, F.

AU - De Schauenburg, B.

AU - Leifels, Y.

AU - Alard, J. P.

AU - Andronic, A.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Benabderrahmane, M. L.

AU - Čaplar, R.

AU - Crochet, P.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Fodor, Z.

AU - Gobbi, A.

AU - Grishkin, Y.

AU - Hartmann, O. N.

AU - Herrmann, N.

AU - Hildenbrand, K. D.

AU - Hong, B.

AU - Kecskeméti, J.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Koczoń, P.

AU - Korolija, M.

AU - Kotte, R.

AU - Kress, T.

AU - Lebedev, A.

AU - Lopez, X.

AU - Merschmeyer, M.

AU - Mösner, J.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Schüttauf, A.

AU - Seres, Z.

AU - Sikora, B.

AU - Sim, K. S.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Smolyankin, V.

AU - Stockmeier, M.

AU - Stoicea, G.

AU - Tymiński, Z.

AU - Wagner, P.

AU - Wiśniewski, K.

AU - Wohlfarth, D.

AU - Xiao, Z. G.

AU - Yushmanov, I.

AU - Zhilin, A.

PY - 2004/8/12

Y1 - 2004/8/12

N2 - Cluster production is investigated in central collisions of Ca+Ca, Ni+Ni, 96Zr+96Zr, 96Ru+96Ru, Xe+CsI and Au+Au reactions at 0.4 AGeV incident energy. We find that the multiplicity of clusters with charge Z≥3 grows quadratically with the system's total charge and is associated with a midrapidity source with increasing transverse velocity fluctuations. When reduced to the same number of available charges, an increase of cluster production by about a factor of 5.5 is observed in the midrapidity region between the lightest system (Ca+Ca) and the heaviest one (Au+Au). The results, as well as simulations using quantum molecular dynamics, suggest a collision process where droplets, i.e., nucleon clusters, are created in an expanding, gradually cooling, nucleon gas. Within this picture, expansion dynamics, collective radial flow and cluster formation are closely linked as a result of the combined action of nucleon-nucleon scatterings and the mean fields.

AB - Cluster production is investigated in central collisions of Ca+Ca, Ni+Ni, 96Zr+96Zr, 96Ru+96Ru, Xe+CsI and Au+Au reactions at 0.4 AGeV incident energy. We find that the multiplicity of clusters with charge Z≥3 grows quadratically with the system's total charge and is associated with a midrapidity source with increasing transverse velocity fluctuations. When reduced to the same number of available charges, an increase of cluster production by about a factor of 5.5 is observed in the midrapidity region between the lightest system (Ca+Ca) and the heaviest one (Au+Au). The results, as well as simulations using quantum molecular dynamics, suggest a collision process where droplets, i.e., nucleon clusters, are created in an expanding, gradually cooling, nucleon gas. Within this picture, expansion dynamics, collective radial flow and cluster formation are closely linked as a result of the combined action of nucleon-nucleon scatterings and the mean fields.

UR - http://www.scopus.com/inward/record.url?scp=3843077353&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3843077353&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2004.05.031

DO - 10.1016/j.physletb.2004.05.031

M3 - Article

VL - 595

SP - 118

EP - 126

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-4

ER -