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Title: Onset of radial flow in p + p collisions

Journal Article · · Physical Review. C. Nuclear Physics
 [1];  [1];  [1];  [1];  [1];  [2];  [1];  [2]
  1. Univ. of Science and Technology of China, Hefei (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)

It has been debated for decades whether hadrons emerging from p+p collisions exhibit collective expansion. The signal of the collective motion in p+p collisions is not as clear as in heavy-ion collisions because of the low multiplicity and large fluctuation in p+p collisions. Tsallis Blast-Wave (TBW) model is a thermodynamic approach, introduced to handle the overwhelming correlation and fluctuation in the hadronic processes. We have systematically studied the identified particle spectra in p+p collisions from RHIC to LHC using TBW and found no appreciable radial flow in p+p collisions below √s = 900 GeV. At LHC higher energy of 7 TeV in p+p collisions, the radial flow velocity achieves an average of (β) = 0.320 ± 0.005. This flow velocity is comparable to that in peripheral (40-60%) Au+Au collisions at RHIC. In addition, breaking of the identified particle spectra mT scaling was also observed at LHC from a model independent test.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC00112704; AC02-98CH10886
OSTI ID:
1188210
Alternate ID(s):
OSTI ID: 1181629
Report Number(s):
BNL-107636-2015-JA; PRVCAN
Journal Information:
Physical Review. C. Nuclear Physics, Vol. 91, Issue 2; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

References (62)

Strange particle production in pp collisions at $\sqrt{s}\ =$ 0.9 and 7 TeV text January 2011
Inclusive charged particle production at the CERN p collider journal March 1983
Systematic study of particle production in p + p   ( p ¯ ) collisions via the HIJING model journal February 1992
Inclusive cross section and double helicity asymmetry for π 0 production in p + p collisions at s = 200 GeV : Implications for the polarized gluon distribution in the proton journal September 2007
Multi-strange baryon production in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> with ALICE journal June 2012
Possible generalization of Boltzmann-Gibbs statistics journal July 1988
Thermal phenomenology of hadrons from 200 A GeV S+S collisions journal November 1993
Charged-particle multiplicities in pp interactions measured with the ATLAS detector at the LHC journal May 2011
Study of the inclusive production of charged pions, kaons, and protons in pp collisions at $\sqrt{s} = 0.9, 2.76,\mbox{ and }7~\mbox{TeV}$ journal October 2012
Experimental and theoretical challenges in the search for the quark–gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions journal August 2005
Neutral pion and η meson production in proton–proton collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>0.9</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> journal October 2012
Fluid dynamical equations and transport coefficients of relativistic gases with non-extensive statistics journal February 2012
Transverse momentum spectra for charged particles at the CERN proton-antiproton collider journal December 1982
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC journal September 2010
The Statistical Origin of Constituent-Quark Scaling in QGP Hadronization journal March 2013
Inclusive π0 production at the CERN p-p̄ collider journal August 1982
The "Ridge" in Proton-Proton Scattering at 7 TeV text January 2010
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC text January 2010
Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions text January 2003
Transverse-Momentum and Collision-Energy Dependence of High- p T Hadron Suppression in A u + A u Collisions at Ultrarelativistic Energies journal October 2003
Inclusive particle production in the transverse momentum range between 0.25 and 40 GeV/c at the CERN $$Sp\bar pS$$ collider journal September 1985
Interpretation of the Nonextensivity Parameter q in Some Applications of Tsallis Statistics and Lévy Distributions journal March 2000
Effect of jet production on the multiplicity dependence of average transverse momentum journal January 1989
Energy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE journal December 2013
Power laws in elementary and heavy-ion collisions: A story of fluctuations and nonextensivity? journal May 2009
Production of pions, kaons and protons in pp collisions at $\sqrt{s}= 900~\mathrm{GeV}$ with ALICE at the LHC journal June 2011
Charged particle transverse momentum spectra in pp collisions at $ \sqrt {s} = 0.9 $ and 7 TeV journal August 2011
The ridge in proton–proton collisions at the LHC journal February 2011
Strange particle production in p + p collisions at s = 200 GeV journal June 2007
Strange particle production in pp collisions at $ \sqrt {s} = 0.9 $ and 7 TeV journal May 2011
Energy Dependence of the Transverse Momentum Distributions of Charged Particles in pp Collisions Measured by ALICE text January 2013
Nonextensive methods in turbulence and particle physics journal March 2002
Nuclear effects on hadron production in d + Au collisions at s NN = 200 GeV revealed by comparison with p + p data journal August 2006
Nonextensive hydrodynamics for relativistic heavy-ion collisions journal April 2008
Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV text January 2011
New regimes of the stringy (holographic) Pomeron and high-multiplicity p p and p A collisions journal May 2014
Production of pions, kaons and protons in pp collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC text January 2011
Thermal Equilibration and Expansion in Nucleus-Nucleus Collision at the AGS text January 1994
Prethermalization, non-extensive statistics and hydrodynamics journal May 2005
Thermal equilibration and expansion in nucleus-nucleus collisions at the AGS journal January 1995
Systematic measurements of identified particle spectra in pp , d + Au , and Au + Au collisions at the STAR detector journal March 2009
Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC text January 2010
Examine the species and beam-energy dependence of particle spectra using Tsallis Statistics text January 2009
Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions journal October 2004
Mass-identified particle production in proton-antiproton collisions at s = 300 ,   5 4 0 ,   1 0 0 0 ,   and   1800 GeV journal August 1993
“Ridge” in Proton-Proton Scattering at 7 TeV journal March 2011
Study of the inclusive production of charged pions, kaons, and protons in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV text January 2012
Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions text January 2005
Elliptic flow in proton–proton collisions at $\sqrt{s}=7$  TeV journal January 2011
Cross section and double helicity asymmetry for η mesons and their comparison to π 0 production in p + p collisions at s = 200 GeV journal February 2011
Kaon production in reactions at a centre-of-mass energy of 540 GeV journal January 1985
Production of K∗(892)0 and ϕ(1020) in pp collisions at $\sqrt{s}=7\ \mathrm{TeV}$ journal October 2012
Spectra and radial flow in relativistic heavy ion collisions with Tsallis statistics in a blast-wave description journal May 2009
Nonextensive hydrodynamics for relativistic heavy-ion collisions text January 2007
Non-extensive approach to quark matter journal May 2009
Azimuthal Collimation of Long Range Rapidity Correlations by Strong Color Fields in High Multiplicity Hadron-Hadron Collisions journal June 2012
Charged particle transverse momentum spectra in pp collisions at √s=0.9 and 7 TeV text January 2011
Strange particle production in proton–proton collisions at $\sqrt{s}=0.9$ $\mbox {${\rm TeV}$}$ with ALICE at the LHC: The ALICE Collaboration journal March 2011
Power laws in elementary and heavy-ion collisions - A story of fluctuations and nonextensivity? text January 2008
Transverse flow due to minijets in collisions at √s=1.8 TeV journal May 1992
Identified hadron spectra at large transverse momentum in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>d</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:math> collisions at <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi mathvariant="normal">NN</mml:mi></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mtext> GeV</mml:mtext></mml:math> journal June 2006
Examination of the species and beam energy dependence of particle spectra using Tsallis statistics journal June 2010

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