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The thermal multihadron production observed in different high energy collisions poses many basic problems: why do even elementary, $e^+e^-$ and hadron-hadron, collisions show thermal behaviour? Why is there in such interactions a…

High Energy Physics - Phenomenology · Physics 2014-03-17 P. Castorina , H. Satz

The assumption that the production of quark-antiquark pairs and their sequential string-breaking taking place through the event horizon of the color confinement determines freezeout temperature and gives a plausible interpretation of the…

General Physics · Physics 2017-01-17 Abdel Nasser Tawfik , Hayam Yassin , Eman R. Abo Elyazeed

The thermal multihadron production observed in different high energy collisions poses two basic problems: (1) why do even elementary collisions with comparatively few secondaries (e+e- annihilation) show thermal behaviour, and 2) why is…

High Energy Physics - Phenomenology · Physics 2009-01-22 F. Becattini , P. Castorina , J. Manninen , H. Satz

The deconfinement transition and the hadronization mechanism at high energy are related to the quark-antiquark string breaking and the corresponding temperature depends on the string tension $\sigma$. In the Unruh scheme of hadron…

High Energy Physics - Phenomenology · Physics 2016-10-19 P. Castorina , D. Lanteri

The estimates of overall strange quark production in high energy e+e-, pp and ppbar collisions by using the statistical-thermal model of hadronisation are presented and compared with previous works. The parametrization of strangeness…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Becattini

A new thermalization scenario for heavy ion collisions is discussed. It is based on the Hawking--Unruh effect: an observer moving with an acceleration $a$ experiences the influence of a thermal bath with an effective temperature $T = a /…

High Energy Physics - Phenomenology · Physics 2009-11-11 D. Kharzeev

Because of colour confinement, the physical vacuum forms an event horizon for quarks and gluons; this can be crossed only by quantum tunneling, i.e., through the QCD counterpart of Hawking radiation by black holes. Since such radiation…

High Energy Physics - Phenomenology · Physics 2017-08-23 P. Castorina

Boost-invariant hadron production in high energy collisions occurs in causally disconnected regions of finite space-time size. As a result, globally conserved quantum numbers (charge, strangeness, baryon number) are conserved locally in…

High Energy Physics - Phenomenology · Physics 2016-08-24 P. Castorina , H. Satz

We conjecture that because of color confinement, the physical vacuum forms an event horizon for quarks and gluons which can be crossed only by quantum tunneling, i.e., through the QCD counterpart of Hawking radiation by black holes. Since…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Castorina , D. Kharzeev , H. Satz

We consider hadron production in high energy collisions as an Unruh radiation phenomenon. This mechanism describes the production pattern of newly formed hadrons and is directly applicable at vanishing baryochemical potential, mu = 0. It…

High Energy Physics - Phenomenology · Physics 2014-09-11 Paolo Castorina , Alfredo Iorio , Helmut Satz

I discuss strangeness production in nucleus-nucleus reactions at ultrarelativistic energies (up to 200 AGeV). In these reactions matter may be created with densities and temperatures in the transition region between quark-gluon plasma (QGP)…

Nuclear Theory · Physics 2009-10-30 H. Sorge

The relative multiplicities for hadron production in different high energy collisions are in general well described by an ideal gas of all hadronic resonances, except that under certain conditions, strange particle rates are systematically…

Nuclear Theory · Physics 2018-02-14 Paolo Castorina , Salvatore Plumari , Helmut Satz

We propose a new thermalization scenario for heavy ion collisions which at sufficiently high energies implies the phase transition to the quark--gluon plasma. The key ingredient of our approach is the Hawking--Unruh effect: an observer…

High Energy Physics - Phenomenology · Physics 2010-11-30 Dmitri Kharzeev , Kirill Tuchin

It is entirely plausible that during the primordial quark-hadron transition, microseconds after the Big Bang, the universe may experience supercooling accompanied by mini inflation leading to a first-order phase transition from quarks to…

General Physics · Physics 2020-05-13 Bikash Sinha

The proposed analogy between hadron production in high-energy collisions and Hawking-Unruh radiation process in the black holes shall be extended. This mechanism provides a theoretical basis for the freeze-out parameters, the temperature…

High Energy Physics - Phenomenology · Physics 2015-10-12 Abdel Nasser Tawfik , Hayam Yassin , Eman R. Abo Elyazeed

We show that strangeness suppression in hadronic and nuclear collisions is fully determined by the initial energy density of the collision. The suppression factor $\gamma_s(s)$, with $\sqrt s$ denoting the collision energy, can be expressed…

High Energy Physics - Phenomenology · Physics 2016-08-24 P. Castorina , S. Plumari , H. Satz

We suppose that overall strangeness production in both high energy elementary and heavy ion collisions can be described within the framework of an equilibrium statistical model in which the effective degrees of freedom are constituent…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. Becattini , G. Pettini

An effective model with constituent quarks as fundamental degrees of freedom is used to predict the relative strangeness production pattern in both high energy elementary and heavy ion collisions. The basic picture is that of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. Becattini , G. Pettini

We analyze multiparticle production in a thermal framework for 7 central nucleus nucleus collisions, $e^+$+ $e^-$ annihilation into hadrons on the Z resonance and 4 hadronic reactions (p+p and p+$\bar{p}$ with partial centrality selec…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sonja Kabana , Peter Minkowski

The QCD counterpart of Hawking radiation from black holes leads to thermal hadron production in high energy collisions, from $e^+e^-$ annihilation to heavy ion interactions. This hadronic radiation is formed by tunnelling through the event…

High Energy Physics - Phenomenology · Physics 2009-11-11 Helmut Satz
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