Kinematic distributions and nuclear effects of J/ψ production in 920 GeV fixed-target proton-nucleus collisions

被引：0

作者：

I. Abt

M. Adams

M. Agari

H. Albrecht

A. Aleksandrov

V. Amaral

A. Amorim

S. J. Aplin

V. Aushev

Y. Bagaturia

V. Balagura

M. Bargiotti

O. Barsukova

J. Bastos

J. Batista

C. Bauer

Th. S. Bauer

A. Belkov

Ar. Belkov

I. Belotelov

A. Bertin

B. Bobchenko

M. Böcker

A. Bogatyrev

G. Bohm

M. Bräuer

M. Bruinsma

M. Bruschi

P. Buchholz

T. Buran

J. Carvalho

P. Conde

C. Cruse

M. Dam

K. M. Danielsen

M. Danilov

S. De Castro

H. Deppe

X. Dong

H. B. Dreis

V. Egorytchev

K. Ehret

F. Eisele

D. Emeliyanov

S. Essenov

L. Fabbri

P. Faccioli

M. Feuerstack-Raible

J. Flammer

B. Fominykh

机构：

[1] NIKHEF,Department ECM, Faculty of Physics

[2] University of Barcelona,Institute of Engineering Physics

[3] Institute for High Energy Physics,Institut für Physik

[4] Tsinghua University,Department of Physics

[5] Humboldt-Universität zu Berlin,Institut für Physik

[6] Dipartimento di Fisica dell’ Università di Bologna and INFN Sezione di Bologna,Physikalisches Institut

[7] University of Cincinnati,Department of Physics

[8] LIP Coimbra,Institute for Nuclear Research

[9] Niels Bohr Institutet,Lehrstuhl für Informatik V

[10] Universität Dortmund,Max

[11] Joint Institute for Nuclear Research Dubna,Planck

[12] DESY,Institut für Physik

[13] Max-Planck-Institut für Kernphysik,Dept. of Physics

[14] Universität Heidelberg,Fachbereich Physik

[15] University of Houston,Fachbereich Physik

[16] Ukrainian Academy of Science,Institute for Nuclear Research

[17] J. Stefan Institute,Physik

[18] University of Ljubljana,Institut

[19] University of California,undefined

[20] Universität Mannheim,undefined

[21] University of Maribor,undefined

[22] Institute of Theoretical and Experimental Physics,undefined

[23] Werner-Heisenberg-Institut,undefined

[24] University of Oslo,undefined

[25] Universität Rostock,undefined

[26] Universität Siegen,undefined

[27] INRNE-BAS,undefined

[28] Universiteit Utrecht/NIKHEF,undefined

[29] DESY,undefined

[30] Universität Zürich,undefined

来源：

The European Physical Journal C | 2009年 / 60卷

关键词：

Monte Carlo; Systematic Uncertainty; Decay Channel; Primary Vertex; Nuclear Effect;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Measurements of the kinematic distributions of J/ψ mesons produced in p–C, p–Ti and p–W collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\sqrt{s}=41.6~\mathrm{GeV}$\end{document} in the Feynman-x region −0.34<xF<0.14 and for transverse momentum up to pT=5.4 GeV/c are presented. The xF and pT dependencies of the nuclear suppression parameter, α, are also given. The results are based on 2.4×105J/ψ mesons reconstructed in both the e+e− and μ+μ− decay channels. The data have been collected by the HERA-B experiment at the HERA proton ring of the DESY laboratory. The measurement explores the negative region of xF for the first time. The average value of α in the measured xF region is 0.981±0.015. The data suggest that the strong nuclear suppression of J/ψ production previously observed at high xF turns into an enhancement at negative xF.

引用

页码：525 / 542

页数：17

共 50 条

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SLEZAK, B
WOLTER, W
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