Preface

Preface

The XXIII International Baldin Seminar on High Energy Physics Problems "Relativistic Nuclear Physics and Quantum Chromodynamics", organized by the Joint Institute for Nuclear Research was

held in September 19-24, 2016 at Dubna, Russia (http://relnp.jinr.ru/ishepp-xxiii/).

This Seminar was devoted to the 90th anniversary of an outstanding scientist Academician A.M. Baldin (1926-2001).

The Seminar was supported by the Russian Foundation for Basic Research (RFBR) and the Inter-national Union of Pure and Applied Physics (IUPAP).

The Seminar continues the series of traditional conferences that was established by Alexander Mikhailovich Baldin in 1969 with support of M.A. Markov (1908-1994). They were given an infor-mal, somewhat witty, name "Baldin autumn".

The first Seminar of this series was devoted to vector mesons and included a considerable number of talks aimed to create gauge field theory, in particular, to solve the problems of quantization of the Yang-Mills fields, their geometric interpretation and phenomenological applications of these theories to experiment. This was the first large-scale conference devoted to the main trend in theory of funda-mental interactions. Among the participants were professors N.N. Bogoliubov, J. Bjorken, B. Zumino, M.A. Markov, S. Ting, L.D. Faddeev, V.A. Matveev and others, who made the basic contribution to this field of physics. The subsequent seminars of this series were devoted to the physics of strong interactions, multiparticle production and relativistic nuclear physics.

Since the second half of the seventies the gauge field theory greatly affected the physics of

fun-damental interactions and this was naturally reflected in the program of the Seminars. The quantum chromodynamics as a theory of strong interactions based on the first principles and the possibility of its experimental check were the subject at the previous Seminars. The problems of relativistic nuclear physics, multiple production processes in nucleus-nucleus collisions, traditionally discussed at the Seminar gained a large significance. Cumulative meson production, the laws governing the limiting fragmentation of nuclei and the nuclear reactions with large momentum transfer which were discov-ered in the early seventies became the main trends in the program of investigations of relativistic nuclear collisions at the JINR Synchrophasotron and were successfully interpreted by the language of quantum chromodynamics. The concept of the quark-parton structure functions of nuclei was consid-erably developed. At the VI-th Seminar, the dependence of the structure functions normalized to the

atomic weight that was later named the EMC-effect, was discussed. The results of the experiments on

deep inelastic muon scattering on nuclei in the cumulative region were first reported there, that gave convincing grounds for the conclusion about the properties of the quark-parton structure functions drawn on the basis of the study of the limiting fragmentation of nuclei.

At the VII-th Seminar attention was focused on the properties of the quark-parton structure func-tions of nuclei, and special sessions were devoted to this problem.

An essential part of the program of the previous Seminars was the phenomenological description of chromodynamics at large distances (bags, strings, multiquark systems, hidden colour, quark-gluon plasma, etc.).

In the past years the role of the colour degrees of freedom in nuclei was extensively studied and

discussed at special conferences devoted to it. The effect of the quark degrees of freedom on the

After the VIII-th Seminar physics of relativistic nuclei was essentially developed: beams of nuclei

at energy of 200 GeV/nucleon and new large detectors began to work. Scores of big collaborations

joined the research of processes of multiple particle production in relativistic nuclear collisions and the problem of chromoplasma. The natural phenomena in relativistic nuclear physics having an asymp-totic character, played the decisive role in a detailed design and estimation of cost of the accelerator complex and construction of installations on nuclear beams. The principles of symmetry and self-similarity can be used to predict inclusive cross sections of particle production in the central rapidity region. Recent analysis makes it possible to conclude that the hopes for obtaining dense and hot matter in heavy ultrarelativistic nuclear collisions were not yet realized, but we can say that it was claimed at XX Baldin ISHEPP that hopes of physicists were really justified! An overall idea about the investigation in the field of relativistic nuclear physics can be got from the Proceedings of the Dubna International Seminar of the present series. The interplay of hadronic structure and QCD interactions is one of the important features of the transition regime.

The Proceedings of the XXIII Baldin ISHEPP are devoted to the progress of the experimen-tal research on the accelerators of high energies. Talks on hot problems of the relativistic nu-clear physics and reports on status and perspectives of the high-energy physics leading experiments

(CMS/LHC, ALICE/LHC, ATLAS/LHC, STAR/RHIC, CLAS/JLAB, CBM/FAIR, PANDA/FAIR,

NA61/CERN, BESIII/BEPCII, FLUKTON/IHEP, NICA/MPD/JINR, FAIR, CW-LINAC/GSI, PRAE,

Nab, GlueX/JLAB, etc.)., which were devoted to the relativistic nuclear physics, are included in the

Proceedings. During the Seminar about 157 reports of the 250 participants from 22 countries and international organizations were presented. We expect that the Proceedings will be interesting for scientists working in the relativistic nuclear physics.

Next XXIV seminar will be organized on September 17-22, 2018 and we hope that the scientific program will be even more intriguing and interesting because of progress of the relativistic nuclear physics and functioning of the new accelerators.

S.G. Bondarenko V.V. Burov A.I. Malakhov

JOINT INSTITUTE FOR NUCLEAR RESEARCH

XXIII

RELATIVISTIC NUCLEAR PHYSICS

&QUANTUM CHROMODYNAMICS

dedicated to the 90th anniversary of Academician A.M. Baldin

Dubna, Russia, September 19-24, 2016

International Advisory Committee

A. Andrianov (Russia) H. Toki (Japan)

A. Antonov (Bulgaria) E. Tomasi-Gustafsson (France)

Ts. Baatar (Mongolia) I. Tserruya (Israel)

J. Carbonell (France) V. Voronov (JINR)

C. Ciofi degli Atti (Italy) Nu Xu (USA)

J. Cleymans (South Africa) G. Zinovjev (Ukraine)

T. Donnelly (USA)

S. Dubniˇcka (Slovak Republic) Organizing Committee

M. Gazdzicki (Poland) V.V. Burov (Co-Chairman)

P. Giubellino (CERN) A.I. Malakhov (Co-Chairman)

H. Gutbrod (Germany) S.G. Bondarenko (Vice-Chairman)

P. W.-Y. Hwang (Taiwan) E.P. Rogochaya (Scientific Secretary)

V. Kekelidze (JINR) E.N. Russakovich (Secretary)

A. Kurepin (Russia) Yu.S. Anisimov

V. Kuvshinov (Belarus) A.A. Baldin

H. Machner (Germany) I.V. Boguslavsky

L. Majling∗(Czech Republic) S.B. Gerasimov

V. Matveev (JINR) A.D. Kovalenko

Y. Musakhanov (Uzbekistan) V.K. Lukyanov

Sh. Nagamiya (Japan) I.I. Migulina

V. Novozhilov (Russia) S.Z. Pakulyak

Ch. Perdrisat (USA) Yu.A. Panebratsev

W. Plessas (Austria) N.M. Piskunov

L. Pondrom (USA) E.B. Plekhanov

G. Roepke (Germany) B.M. Starchenko

G. Salme (Italy) O.V. Teryaev

V. Savrin (Russia) V.D. Toneev

L. Schroeder (USA) A.S. Vodopyanov

P. Senger (Germany) P.I. Zarubin

A. Shebeko (Ukraine) I.G. Zarubina

A. Slavnov (Russia)

B. Slowinski (Poland) E-mail:<[email protected]>

H. Stoecker (Germany)

A. Thomas (USA) Web-site:http://relnp.jinr.ru/ishepp/

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Addresses for Correspondence:

Dr. Elena Rogochaya

Veksler and Baldin Laboratory of High Energy Physics Joint Institute for Nuclear Research

141980 Dubna, Russia [email protected]

A. Andrianov (Russia) A. Antonov (Bulgaria) Ts. Baatar (Mongolia) J. Carbonell (France) C. Ciofi degli Atti (Italy) J. Cleymans (South Africa) T. Donnelly (USA) S. Dubnichka (Slovak Republic) M. Gazdzicki (Poland/Germany) P. Giubellino (CERN) H. Gutbrod (Germany) P. W-Y. Hwang (Taiwan) V. Kekelidze (JINR) A. Kurepin (Russia)

V. Kuvshinov (Belarus) H. Machner (Germany) L. Majling (Czech Republic) V. Matveev (JINR) Y. Musakhanov (Uzbekistan) Sh. Nagamiya (Japan) V. Novozhilov (Russia) Ch. Perdrisat (USA) W. Plessas (Austria) L. Pondrom (USA) G. Roepke (Germany) G. Salme (Italy) V. Savrin (Russia) L. Schroeder (USA)

P. Senger (Germany) A. Shebeko (Ukraine) A. Slavnov (Russia) B. Slowinski (Poland) H. Stoecker (Germany) A. Thomas (USA) H. Toki (Japan) E. Tomasi-Gustafsson (France) I. Tserruya (Israel) V. Voronov (JINR) Nu Xu (USA) G. Zinovjev (Ukraine)

Visas, accomodation, travel details:

Mrs. Elena Russakovich International Department Joint Institute for Nuclear Research 141980 Dubna, Russia [email protected]

tel: +7 49621 63890, fax: +7 49621 65891

J O I N T I N S T I T U T E F O R N U C L E A R R E S E A R C H

R E L A T I V I S T I C N U C L E A R P H Y S I C S

& Q U A N T U M C H R O M O D Y N A M I C S

September 19–24, 2016, Dubna, Russia

International Advisory Committee

• Quantum chromodynamics at large distances • Relativistic heavy ion collisions

• Hadron spectroscopy, multiquarks • Cumulative and subthreshold processes • Structure functions of hadrons and nuclei • Dynamics of multiparticle production • Polarization phenomena, spin physics • Studies of exotic nuclei in relativistic beams • Applied use of relativistic beams

• Accelerator facilities: status and perspectives • New project NICA/MPD (Nuclotron-based Ion

Collider fAcility/ Multipurposed Detector) at JINR • Progress in experimental studies in high energy

centers — JINR, CERN, BNL, JLAB, GSI, etc.

Seminar Topics

Burov V. V. (co-Chairman) Malakhov A. I. (co-Chairman) Bondarenko S. G. (vice-Chairman) Rogochaya E. P. (Scientific Secretary) Russakovich E. N. (Secretary) Anisimov Yu. S. Baldin A. A. Boguslavsky I. V. Gerasimov S. B. Kovalenko A. D. Lukyanov V. K. Migulina I. I. Pakulyak S. Z. Panebratsev Yu. A.

Piskunov N. M. Plekhanov E. B. Starchenko B. M. Teryaev O. V. Toneev V. D. Vodopyanov A. S. Zarubina I. G. Zarubin P. I.

Organizing

Committee

TO THE

90

th

OF ACADEMICIAN A. M. BALDIN