Nuclear Fragment Mass Yields from High-Energy Proton-Nucleus Interactions

Finn, J.E.; Agarwal, S.; Bujak, A.; Chuang, Jeffrey H.; Gutay, L.; Hirsch, A. S.; Roger, Michel; Porile, N.; Scharenberg, R. P.; Stringfellow, B.; Turkot, F.

doi:10.1103/physrevlett.49.1321

Cited by 394 publications

(194 citation statements)

References 11 publications

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“…The observation by the Purdue group [17] that the yields of the fragments produced in p+Xe and p+Kr obeyed a power law Y (A f ) ∝ A −τ f led to a conjecture that the fragmenting target was near the critical point of liquid-gas phase transition. The origin of this conjecture is the Fisher model [85] which predicts that at the critical point the yields of droplets will be given by a power law.…”

Section: B Critical Exponentsmentioning

confidence: 99%

“…Multifragmentation was seen in high-energy proton-nucleus collisions [15][16][17][18] before systematic studies were undertaken in nucleus-nucleus collisions. For a proton incident on a nucleus the picture is as follows.…”

Section: Experimental Overviewmentioning

confidence: 99%

“…Most early multifragmentation experiments are inclusive measurements [15][16][17][18][19][20], i.e. particles are identified with no requirements that other particles from the same event should be detected in coincidence.…”

Section: Event Selectionmentioning

confidence: 99%

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Liquid-Gas Phase Transition in Nuclear Multifragmentation

Gupta

Mekjian

Tsang

2001

Advances in the Physics of Particles and Nuclei

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The equation of state of nuclear matter suggests that at suitable beam energies the disassembling hot system formed in heavy ion collisions will pass through a liquid-gas coexistence region. Searching for the signatures of the phase transition has been a very important focal point of experimental endeavours in heavy-ion collisions, in the last fifteen years. Simultaneously theoretical models have been developed to provide information about the equation of state and reaction mechanisms consistent with the experimental observables.

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Section: B Critical Exponentsmentioning

confidence: 99%

Section: Experimental Overviewmentioning

confidence: 99%

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Liquid-Gas Phase Transition in Nuclear Multifragmentation

Gupta

Mekjian

Tsang

2001

Advances in the Physics of Particles and Nuclei

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“…Since the early 80's, size distributions have been fitted with power laws [9], and more sophisticated critical analyses have been performed following theoretical concepts coming from percolation theory. More recently, an astonishing good scaling behaviour has been observed in the EOS data [10] and tentatively associated to the critical point of the nuclear liquid-gas phase transition expected to occur in nuclear matter in the framework of the Fisher droplet model [11].…”

Section: Pseudo-critical Behaviour In Nucleimentioning

confidence: 99%

Experimental signals of phase transition

D’Agostino¹,

Bruno²,

Gulminelli³

et al. 2004

Nuclear Physics A

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The connection between the thermodynamics of charged finite nuclear systems and the asymptotically measured partitions is presented. Some open questions, concerning in particular equilibrium partitions are discussed. We show a detailed comparison of the decay patterns in Au + C, Cu, Au central collisions and in Au quasi-projectile events. Observation of abnormally large fluctuations in carefully selected samples of data is reported as an indication of a first order phase transition (negative heat capacity) in the nuclear equation of state.

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“…In infinite nuclear matter, a phase transition of the liquid-gas type [1,2] is predicted to occur at sub-saturation density with a critical temperature of about 15 MeV, depending on the theoretical models. This phenomenon corresponds to the separation of the system into two macroscopic (infinite) phases of different densities.…”

Section: Introductionmentioning

confidence: 99%

Cluster formation in asymmetric nuclear matter: Semi-classical and quantal approaches

2008

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The nuclear-matter liquid-gas phase transition induces instabilities against finite-size density fluctuations. This has implications for both heavy-ion-collision and compact-star physics. In this paper, we study the clusterization properties of nuclear matter in a scenario of spinodal decomposition, comparing three different approaches: the quantal RPA, its semi-classical limit (Vlasov method), and a hydrodynamical framework. The predictions related to clusterization are qualitatively in good agreement varying the approach and the nuclear interaction. Nevertheless, it is shown that i) the quantum effects reduce the instability zone, and disfavor short-wavelength fluctuations; ii) large differences appear between the two semi-classical approaches, which correspond respectively to a collisionless (Vlasov) and local equilibrium description (hydrodynamics); iii) the isospin-distillation effect is stronger in the local equilibrium framework; iv) important variations between the predicted time-scales of cluster formation appear near the borders of the instability region.

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Nuclear Fragment Mass Yields from High-Energy Proton-Nucleus Interactions

Cited by 394 publications

References 11 publications

Liquid-Gas Phase Transition in Nuclear Multifragmentation

Liquid-Gas Phase Transition in Nuclear Multifragmentation

Experimental signals of phase transition

Cluster formation in asymmetric nuclear matter: Semi-classical and quantal approaches

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