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The production of eta and eta-prime mesons in elementary nucleon-nucleon collisions has been investigated at the synchrotrons CELSIUS, COSY and SATURNE. The magnitude and energy dependence of the total cross section as well as the…

A procedure is proposed which accounts for final state interaction corrections for near threshold meson production in nucleon-nucleon scattering. In analogy with the Watson-Migdal approximation, it is shown that in the limit of extremely…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Moalem , L. Razdolskaja , E. Gedalin

The $\pi^-p \to e^+e^- n$ and $\pi^+n \to e^+e^- p$ reaction cross sections are calculated below and in the vicinity of the vector meson ($\rho^0$, $\omega$) production threshold. These processes are largely responsible for the emission of…

Nuclear Theory · Physics 2014-11-18 Madeleine Soyeur , Matthias F. M. Lutz , Bengt Friman

For the forward going proton and $\eta$ meson, the coherent $\eta$ meson production in the $(p,p^\prime)$ reaction on the spin-isospin saturated nucleus occurs only due to the $\eta$ meson exchange interaction between the beam proton and…

Nuclear Theory · Physics 2015-06-23 Swapan Das

We provide a simple derivation for particle production in heavy-ion collisions that is proportional to the rate of entropy production. We find that the particle production depends only on the power of the centre-of-mass collision energy…

High Energy Physics - Phenomenology · Physics 2017-02-06 Mateusz Ploskon , Martin Veselsky

In relativistic ion collisions there are excellent opportunities to produce and investigate hyper-nuclei. We have systematically studied the formation of hypernuclear spectator residues in peripheral heavy-ion collisions with the transport…

Nuclear Theory · Physics 2017-02-01 A. S. Botvina , K. K. Gudima , J. Steinheimer , M. Bleicher , J. Pochodzalla

A formation zone intranuclear cascade model is applied to peripheral nucleus-nucleus collisions. We calculate the excitation energies of prefragments, treat their further nuclear disintegration and introduce a model for nuclear deexcitation…

Nuclear Theory · Physics 2009-10-30 A. Ferrari , J. Ranft , S. Roesler , P. R. Sala

We present an overview of the description of K and eta meson productions in nucleon-nucleon collisions within an effective Lagrangian model where meson production proceeds via excitation, propagation and subsequent decay of intermediate…

Nuclear Theory · Physics 2009-08-03 Radhey Shyam

We report the first observation of exclusive $\rho$ production in ultra-peripheral collisions at RHIC. The $\rho$ are produced electromagnetically at large impact parameters where no hadronic interactions occur. The produced $\rho$ have a…

Nuclear Experiment · Physics 2019-08-14 S. Klein

The ALICE experiment at the CERN Large Hadron Collider (LHC) will allow the study of resonance production in nucleus-nucleus and proton-proton collisions. This paper presents results based on physics performance studies to discuss prospects…

High Energy Physics - Experiment · Physics 2008-11-26 J. D. Tapia Takaki

The strong electromagnetic fields associated with high energy protons and nuclei may lead to exclusive photoproduction of vector mesons in proton-proton and nucleus-nucleus collisions at the LHC. This paper will discuss the expected cross…

High Energy Physics - Phenomenology · Physics 2007-05-23 Joakim Nystrand

We present a unified description of the vector meson and dilepton production in elementary and in heavy ion reactions. The production of vector mesons ($\rho,\omega,\phi$) is described via the excitation of nucleon resonances ($R$). The…

Nuclear Theory · Physics 2015-06-26 Christian Fuchs , Amand Faessler

A study of resonance production in central pp collisions is presented as a function of several kinematical variables. In particular the difference in the transverse momentum (dPT) of the exchanged particles shows that undisputed qqbar…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Kirk

We have attempted to develop here tentatively a model for $J/\Psi$ production in p+p, d+Au, Cu + Cu and Au + Au collisions at RHIC energies on the basic ansatz that the results of nucleus-nucleus collisions could be arrived at from the…

High Energy Physics - Phenomenology · Physics 2009-11-18 P. Guptaroy , Tarun K. Garain , Goutam Sau , S. K. Biswas , S. Bhattacharyya

In a one-pion plus one-kaon exchange model, we calculate the kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions. We find that this model describes reasonably well the experimental data on kaon…

Nuclear Theory · Physics 2015-06-26 G. Q. Li , C. M. Ko

Due to their short life-time, flavour-neutral mesons cannot be utilized as free secondary beams or targets, and therefore a study of their interaction with nucleons is not possible via direct scattering experiments. This interaction is,…

In this paper we analyse the double vector meson production in photon -- hadron ($\gamma h$) interactions at $pp/pA/AA$ collisions and present predictions for the $\rho\rho$, $J/\Psi J/\Psi$ and $\rho J/\Psi$ production considering the…

High Energy Physics - Phenomenology · Physics 2016-08-03 V. P. Goncalves , B. D. Moreira , F. S. Navarra

The purpose of the ALICE experiment at the LHC is the study of the Quark Gluon Plasma (QGP) formed in ultra-relativistic heavy-ion collisions, a state of matter in which quarks and gluons are deconfined. The properties of this state of…

High Energy Physics - Experiment · Physics 2019-08-13 L. Massacrier

In recent years a tentative description of the short-range part of hadron interactions with constituent quark interchange has been developed providing an alternative approach to meson physics. Quark interchange plays a role, for example, in…

Nuclear Theory · Physics 2008-11-26 D. T. da Silva , D. Hadjimichef

The momentum-differential invariant cross sections of ${\pi^{0}}$ and $\eta$ mesons are reported for pp collisions at $\sqrt{s}$ = 13 TeV at midrapidity ($|y|<0.8$). The measurement is performed in a broad transverse-momentum range of…

High Energy Physics - Experiment · Physics 2025-11-18 ALICE Collaboration
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