Download or read book Signatures of Absorption Mechanisms for J And Production in High Energy Heavy Ion Collisions written by and published by . This book was released on 1997 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: J/psi and psi ̀produced in high-energy heavy-ion collisions are absorbed by their collisions with nucleons and produced soft particles, leading to two distinct absorption mechanisms. The signature of absorption by produced soft particles, as revealed by psi ̀production data, consists of a gap and a change of the slope in going from the pA line to the nucleus-nucleus line when we make a semi-log plot of the survival probability as a function of the path length. Using this signature, we find from the J/psi production data in pA, O-Cu, O-U, and S-U collisions that the degree of J/psi absorption by produced soft particles is small and cannot account for the J/psi data in Pb-Pb collisions. The anomalous suppression of J/psi production in Pb-Pb collisions can be explained as due to the occurrence of a new phase of strong J/psi absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm3. To probe the chemical content of the new phase, we propose to study the abundance of open-charm mesons and charm hyperons which depends sensitively on the quark chemical potential.

Download or read book Signatures of Absorption Mechanisms for J psi And psi Production in High Energy Heavy Ion Collisions written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: J/psi and psi' produced in high-energy heavy-ion collisions are absorbed by their collisions with nucleons and produced soft particles, leading to two distinct absorption mechanisms. The signature of absorption by produced soft particles, as revealed by psi' production data, consists of a gap and a change of the slope in going from the pA line to the nucleus-nucleus line when we make a semi-log plot of the survival probability as a function of the path length. Using this signature, we find from the J/psi production data in pA, O-Cu, O-U, and S-U collisions that the degree of J/psi absorption by produced soft particles is small and cannot account for the J/psi data in Pb-Pb collisions. The anomalous suppression of J/psi production in Pb-Pb collisions can be explained as due to the occurrence of a new phase of strong J/psi absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm3. To probe the chemical content of the new phase, we propose to study the abundance of open-charm mesons and charm hyperons which depends sensitively on the quark chemical potential.

Download or read book Introduction to High energy Heavy ion Collisions written by Cheuk-Yin Wong and published by World Scientific. This book was released on 1994 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written primarily for researchers and graduate students who are new in this emerging field, this book develops the necessary tools so that readers can follow the latest advances in this subject. Readers are first guided to examine the basic informations on nucleon-nucleon collisions and the use of the nucleus as an arena to study the interaction of one nucleon with another. A good survey of the relation between nucleon-nucleon and nucleus-nucleus collisions provides the proper comparison to study phenomena involving the more exotic quark-gluon plasma. Properties of the quark-gluon plasma and signatures for its detection are discussed to aid future searches and exploration for this exotic matter. Recent experimental findings are summarised.

Download or read book Reaction Mechanism in High energy Heavy ion Collisions written by Isaoa Tanihata and published by . This book was released on 1982 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Sixth International Workshop on Relativistic Aspects of Nuclear Physics written by Takeshi Kodama and published by World Scientific. This book was released on 2001 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals mainly with physics related to the RHIC. It contains one of the first reports on the results of RHIC experiments.

Download or read book Signatures of Quark Gluon Plasma Phase Transition in High Energy Nuclear Collisions written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In high-energy nuclear collisions, the new phase of the quark-gluon plasma is indicated by an anomalous increase in pressure, an excess of direct photon production, an excess of strangeness production, and an anomalous J/[psi] suppression. We review these signatures and discuss how recent high-energy heavy-ion experiments at CERN are consistent with the production of the quark-gluon plasma in high-energy Pb+Pb collisions.

Download or read book Heavy Ion Collisions written by R. Bock and published by Elsevier Science & Technology. This book was released on 1979 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarkonium Production In High energy Nuclear Collisions Proceedings Of The Rhic int 1998 Winter Workshop written by Xin-nian Wang and published by World Scientific. This book was released on 1999-07-06 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charmonium suppression is a promising signal of quark-gluon plasma. In this volume, the latest development both in experiments and in the theory of charmonium production in high-energy nuclear collisions are presented and discussed.

Download or read book Nuclear Dependence of J w and W Production written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: FNAL E866/NuSea has made a number of measurements of J/[psi] and[psi][prime] production by 800 GeV protons on fixed targets of Be, Fe and W. Preliminary results are presented and discussed in the context of nuclear effects such as energy loss and multiple scattering of the partons, absorption of the produced c[bar c] pairs, and shadowing. Production mechanisms involving color-singlet or color-octet states for the c[bar c] pair which eventually forms a J/[psi] or[psi][prime] have implications on the strength of absorption in the nucleus. These nuclear dependence studies arc critical in furthering the authors understanding of these processes towards future measurements at RHIC and the LHC, where J/[psi] suppression is predicted to be an important signature of the creation of quark-gluon plasma in heavy-ion collisions.

Download or read book Signatures of Quark gluon plasma Formation in High energy Heavy ion Collisions written by and published by . This book was released on 1998 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book GSI 93 22 Preprint written by Gerhard Soff and published by . This book was released on 1993 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relativistic Aspects Of Nuclear Physics Procs Of The 6th Intl Workshop written by Carlos Eduardo Aguiar and published by World Scientific. This book was released on 2001-09-28 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals mainly with physics related to the RHIC. It contains one of the first reports on the results of RHIC experiments.

Download or read book Energy Equilibration Mechanisms in Damped Heavy ion Collisions written by Jay L. Wile and published by . This book was released on 1989 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to the Theory of Heavy Ion Collisions written by W. Nörenberg and published by Springer. This book was released on 2013-11-11 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of heavy-ion reactions, nuclear physics has acquired a new frontier. The new heavy-ion sources operating at electrostatic accelerators and the high-energy experiments performed at Berkeley, Dubna, Manchester and Orsay, have opened up the field, and have shown us impressive new prospects. The new accelerators now under construction at Berlin, Daresbury and Darmstadt, as well as those under consideration (GANIL, Oak Ridge, etc. ) are expected to add significantly to our knowledge and understanding of nuclear properties. This applies not only to such exotic topics as the existence and lifetimes of superheavy elements, or the possibil ity of shock waves in nuclei, but also to such more mundane issues as high-spin states, new regions of deformed nuclei and friction forces. The field promises not only to produce a rich variety of interesting phenomena, but also to have wide-spread theoretical implications. Heavy-ion reactions are characterized by the large masses of the fragments, as well as the high total energy and the large total angular momentum typically involved in the collision. A purely quantum-mechanical description of such a collision process may be too complicated to be either possible or inter esting. We expect and, in some cases,know that the classical limit, the limit of geometrical optics, a quantum-statistical or a hydrodynamical description correctly account for typical features.

Download or read book Heavy Ion Collisions Proceedings Of The Second In2p3 riken Symposium written by B Heusch and published by World Scientific. This book was released on 1990-07-27 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High pT Physics in the Heavy Ion Era written by Jan Rak and published by Cambridge University Press. This book was released on 2013-04-25 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of few books to address both high-pT physics and relativistic heavy ion collisions. Essential handbook for graduates and researchers.

Download or read book From E e to Heavy Ion Collisions written by Tamas Csorgo and published by World Scientific. This book was released on 2001 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers various experimental and theoretical aspects of multiparticle production in high energy interactions from lepton-lepton, lepton-hadron, hadron-hadron, hadron-nucleus and heavy ion collisons. This is the first time that data from CERN LEP, FNAL, DESY, BNL AGS, CERN SPS and BNL RHIC have been collected in a single volume. Not only accelerator-induced reactions but also cosmic ray interactions of very high energy are discussed, and the up-to-date theoretical interpretations are summarized.