Multipion Coherent Effects in High Energy Heavy-ion Collisions
نویسندگان
چکیده
Multipion production in high energy nucleus-nucleus collisions is considered in the model of the pion radiation by classical current. Strong coherent effects of narrowing of pion longitudinal and transverse momenta distributions are predicted at the RHIC energy. The coherence enhances the large pseudorapidities producing the bump in the distribution. The growth of the average pion multiplicity and the oscillation effect in the multiplicity distribution are caused by the coherence as well.
منابع مشابه
Multipion Symmetrization Effects on the Source Distribution
Multipion Bose-Einstein(BE) correlations has now aroused great interests among physicists 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22. Among others, Lam and Lo2 were the first to suggest BASER concept in high energy physics. Zajc 3 was the first to use Monte-Carlo methods to study multipion BE correlations effects on two-pion interferometry for fixed pion multiplicity event. Pratt ...
متن کاملCoherent photon-photon interactions in very peripheral relativistic heavy ion collisions
Heavy ions at high velocities provide very strong electromagnetic fields for a very short time. The main characteristics of ultraperipheral relativistic heavy ion collisions are reviewed, characteristic parameters are identified. The main interest in ultraperipheral heavy ion collisions at relativistic ion colliders like the LHC is the interactions of very high energy (equivalent) photons with ...
متن کاملCoherent gluon production in very-high-energy heavy-ion collisions.
The early stages of a relativistic heavy-ion collision are examined in the framework of an effective classical SU(3) Yang-Mills theory in the transverse plane. We compute the initial energy and number distributions, per unit rapidity, at midrapidity, of gluons produced in high-energy heavy-ion collisions. We discuss the phenomenological implications of our results in light of the recent Relativ...
متن کاملCoherent and incoherent diffractive hadron production in pA collisions and gluon saturation
We study coherent and incoherent diffractive hadron production in high-energy quarkonium–heavy nucleus collisions as a probe of the gluon saturation regime of quantum chromodynamics. Taking this process as a model for pA collisions, we argue that the coherent diffractive gluon production, in which the target nucleus stays intact, exhibits a remarkable sensitivity to the energy, rapidity, and at...
متن کاملar X iv : h ep - p h / 02 05 03 1 v 4 2 7 Ja n 20 03 Toward the Semiclassical Theory of High Energy Heavy Ion Collisions
Sudden deposition of energy at the early stage of high energy heavy ion collisions makes virtual gluon fields real. The same is true for virtual vacuum fields under the topological barrier, excited to real states at or above the barrier, gluomagnetic clusters of particular structure related to the sphalerons of the electroweak theory. Semiclassically, these states play the role of the " turning...
متن کامل