Thermal excitation of heavy nuclei with 5–15 GeV/c antiproton, proton and pion beams

Beaulieu, Luc; Kwiatkowski, K.; Hsi, W. C.; Lefort, T.; Pieńkowski, L.; Korteling, R. G.; Wang, G.; Back, B. B.; Bracken, D. S.; Breuer, H.; Cornell, E.; Gimeno‐Nogues, F.; Ginger, David S.; Gushue, S.; Huang, M. J.; Laforest, Richard; Lynch, W. G.; Martin, E.; Morley, K.B.; Remsberg, L. P.; Rowland, Douglas J.; Ramakrishnan, E.; Ruangma, A.; Tsang, M.B.; Viola, V. E.; Winchester, E. M.; Xi, H.; Yennello, S. J.

doi:10.1016/s0370-2693(99)01016-3

Cited by 37 publications

(17 citation statements)

References 23 publications

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“…In the SMM the surface tension temperature dependence differs from that one of the FDM, but it was shown [22] that the value of Fisher exponent τ SMM = 1.825 ± 0.025, which contradicts to the FDM value τ F DM ≈ 2.16, is consistent with ISiS Collaboration data [26] and EOS Collaboration data [27]. Lately, our analytical results [22] were confirmed by the numerical studies [28,29].…”

Section: Introductionsupporting

confidence: 76%

Quark-gluon bags with surface tension

Bugaev

2007

Phys. Rev. C

245

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The temperature and chemical potential dependent surface tension of bags is introduced into the gas of quark-gluon bags model. This resolves a long standing problem of a unified description of the first and second order phase transition with the cross-over. Such an approach is necessary to model the complicated properties of quark-gluon plasma and hadronic matter from the first principles of statistical mechanics. The suggested model has an exact analytical solution and allows one to rigorously study the vicinity of the critical endpoint of the deconfinement phase transition. The existence of higher order phase transitions at the critical endpoint is discussed. In addition, we found that at the curve of a zero surface tension coefficient there must exist the surface induced phase tranition of the 2 nd or higher order, which separates the pure quark gluon plasma (QGP) from the cross-over states, that are the mixed states of hadrons and QGP bags. Thus, the present model predicts that the critical endpoint of quantum chromodynamics is the tricritical endpoint.To my mom who taught me how to use arithmetics

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Section: Introductionsupporting

confidence: 76%

Quark-gluon bags with surface tension

Bugaev

2007

Phys. Rev. C

245

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“…Fig. 6 shows results of an intranuclear cascade calculation [31,36,37] for the average excitation energy (E* > 50 MeV) as a function of beam momentum for proton, negative pion and antiproton beams. For the p and π − cases there is little difference, since the cascades follow similar paths.…”

Section: Excitation Energy Depositionmentioning

confidence: 99%

Light-ion-induced multifragmentation: The ISiS project

et al. 2006

Self Cite

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An extensive study of GeV light-ion-induced multifragmentation and its possible interpretation in terms of a nuclear liquid-gas phase transition has been performed with the Indiana Silicon Sphere (ISiS) 4π detector array. Measurements were performed with 5-15 GeV/c p, p, and π − beams incident on 197 Au and 2-5 GeV 3 He incident on nat Ag and 197 Au targets. Both the reaction dynamics and the subsequent decay of the heavy residues have been explored. The data provide evidence Preprint submitted to Elsevier Science 10 March 2018for a dramatic change in the reaction observables near an excitation energy of E*/A = 4-5 MeV per residue nucleon. In this region, fragment multiplicities and energy spectra indicate emission from an expanded/dilute source on a very short time scale (20-50 fm/c). These properties, along with caloric curve and scaling-law behavior, yield a pattern that is consistent with a nuclear liquid-gas phase transition.

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“…The potential and the limits of this approach have been explored by the ISiS collaboration in their recent experiments at the AGS in Brookhaven with a variety of primary and secondary beams including pions and antiprotons in the momentum range up to 14.6 GeV/c [14][15][16]. The properties of intermediate systems produced in these reactions are summarized in Fig.…”

Section: Useful Reactionsmentioning

confidence: 99%

“…Reactions of energetic hadrons with 197 Au targets: average mass loss ∆A in the fast cascade (top) and relative probability for excitation energies E * > E * min (bottom) as a function of E * min (from Ref. [15]). …”

Section: Introductionmentioning

confidence: 99%

Hot fragmentation of nuclei

Trautmann¹

2001

Nuclear Physics A

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Today, we have a variety of reactions at hand that can be used to multi-fragment nuclei. In many of these reactions even several sources of fragments can be discerned and characterized.There is overwhelming evidence that these sources of fragments are hot. It is already less clear whether heat by itself is sufficient to initiate the fragment decay. What causes fragmentation, and when and how are the fragments (pre)formed? These questions have remained as much a challenge as the complementary class of questions to which they are related: What observations derive their significance from the liquid-gas phase behavior of extended nuclear matter? And, can we observe a phase transition in finite nuclei?Recent developments, largely coming from complex analyses of data sets measured in 4-π-type experiments as well as from calculations based on advanced theoretical concepts, will be discussed.

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Thermal excitation of heavy nuclei with 5–15 GeV/c antiproton, proton and pion beams

Cited by 37 publications

References 23 publications

Quark-gluon bags with surface tension

Quark-gluon bags with surface tension

Light-ion-induced multifragmentation: The ISiS project

Hot fragmentation of nuclei

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