Published April 2012 | Version v1
Journal article Metadata-only

Dihadron correlations in pp and PbPb collisions

Creators

  • 1. Physics Department, University of Seoul, Seoul (Korea, Republic of)

Description

Measurements of charged dihadron angular correlations are presented in proton-proton (pp) and Lead-Lead (PbPb) collisions, over a broad range of pseudorapidity and azimuthal angle, using the CMS detector at the LHC. A new and striking 'ridge'-like structure emerges in the two-dimensional correlation function for particle pairs with intermediate pT of 1-3 GeV/c, in the kinematic region 2.0 < |Δη| < 4.8 and small Δφ in very high multiplicity pp collisions at √s=7 TeV. Studies of the long-range and short-range dihadron correlations in PbPb collisions at √sNN = 2.76 TeV are presented as well. (author)

Availability note (English)

Available from http://dx.doi.org/10.1143/PTPS.193.159

Additional details

Identifiers

DOI
10.1143/PTPS.193.159;

Publishing Information

Journal Title
Progress of Theoretical Physics, Supplement
Journal Issue
no.193
Journal Page Range
p. 159-162
ISSN
0375-9687

Conference

Title
41. international symposium on multiparticle dynamics
Acronym
ISMD 2011
Dates
25-30 Sep 2011
Place
Hiroshima (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
44012017
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANGULAR CORRELATION; CERN LHC; CORRELATION FUNCTIONS; DEEP INELASTIC HEAVY ION REACTIONS; IDEAL FLOW; JET MODEL; LEAD; MULTIPLICITY; PARTICLE PRODUCTION; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; QUARK MATTER
Descriptors DEC
ACCELERATORS; BARYON-BARYON INTERACTIONS; CORRELATIONS; CYCLIC ACCELERATORS; ELEMENTS; FIELD THEORIES; FLUID FLOW; FUNCTIONS; HADRON-HADRON INTERACTIONS; HEAVY ION REACTIONS; INCOMPRESSIBLE FLOW; INTERACTIONS; MATHEMATICAL MODELS; MATTER; METALS; NUCLEAR REACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; STEADY FLOW; STORAGE RINGS; SYNCHROTRONS

Optional Information

Notes
16 refs., 4 figs.