Jet Properties from Dihadron Correlations in p+p Collisions at sqrt(s)=200 GeV

Abstract

The properties of jets produced in p+p collisions at sqrt(s)=200 GeV are measured using the method of two particle correlations. The trigger particle is a leading particle from a large transverse momentum jet while the associated particle comes from either the same jet or the away-side jet. Analysis of the angular width of the near-side peak in the correlation function determines the jet fragmentation transverse momentum j_T . The extracted value, sqrt(<j_T^2>)= 585 +/- 6(stat) +/- 15(sys) MeV/c, is constant with respect to the trigger particle transverse momentum, and comparable to the previous lower sqrt(s) measurements. The width of the away-side peak is shown to be a convolution of j_T with the fragmentation variable, z, and the partonic transverse momentum, k_T . The <z> is determined through a combined analysis of the measured pi^0 inclusive and associated spectra using jet fragmentation functions measured in e^+e^-. collisions. The final extracted values of k_T are then determined to also be independent of the trigger particle transverse momentum, over the range measured, with value of sqrt(<k_T^2>) = 2.68 +/- 0.07(stat) +/- 0.34(sys) GeV/c.

330 authors, 27 pages, 31 figures, 12 tables. Submitted to Physical Review D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

References in corpus (23)

• Suppression of Hadrons with Large Transverse Momentum in Central Au+Au Collisions at $sqrt {s sub {sub {NN}}}_ = 130 GeV
• Fully quantum treatment of the Landau--Pomeranchuk--Migdal effect in QED and QCD
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Elliptic Flow of Identified Hadrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Evidence from d+Au measurements for final-state suppression of high $p_T$ hadrons in Au+Au collisions at RHIC
• Centrality dependence of high pT hadron suppression in Au+Au collisions at sqrt(sNN)=130 GeV
• Suppressed pi^0 Production at Large Transverse Momentum in Central Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Absence of Suppression in Particle Production at Large Transverse Momentum in sqrt(s_NN) = 200 GeV d+Au Collisions
• Induced Gluon Radiation in a QCD Medium
• Transverse Momentum Spectra in Au+Au and d+Au Collisions at $\sqrt{s_{NN}}$=200 GeV and the Pseudorapidity Dependence of High p${}_T$ Suppression
• High-p_T Charged Hadron Suppression in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Mid-Rapidity Neutral Pion Production in Proton-Proto Collisions at sqrt(s_NN) = 200 GeV
• Prospects for Spin Physics at RHIC
• Centrality dependence of charged hadron transverse momentum spectra in d+Au collisions at sqrt(s_NN) = 200 GeV
• Effect of Jet Quenching on High-$p_T$ Hadron Spectra in High-energy Nuclear Collisions
• Azimuthal anisotropy and correlations in the hard scattering regime at RHIC
• Centrality Dependence of Charm Production from Single Electrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• High-$p_T$ Hadron Spectra, Azimuthal Anisotropy and Back-to-Back Correlations in High-energy Heavy-ion Collisions
• Medium Modification of Jet Shapes and Jet Multiplicities
• kt Effects in Direct-Photon Production
• Transverse momentum diffusion and broadening of the back-to-back di-hadron correlation function
• Phenomenological studies in QCD resummation
• Measurement of the jet width in gamma-gamma collisions and in e^+e^- annihilation process at TRISTAN

Cited by in corpus (64)

• The Spin Structure of the Nucleon
• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• Heavy Quark Production in p+p and Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN)=200 GeV
• Review of Jet Measurements in Heavy Ion Collisions
• Inclusive cross section and double helicity asymmetry for π^0 production in p+p collisions at sqrt(s)=200 GeV: Implications for the polarized gluon distribution in the proton
• Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV
• High transverse momentum eta meson production in p+p, d+Au and Au+Au collisions at sqrt(s_NN) = 200 GeV
• The gluon spin contribution to the proton spin from the double helicity asymmetry in inclusive pi^0 production in polarized p+p collisions at sqrt(s)=200 GeV
• Photon-Hadron Jet Correlations in p+p and Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Jet Shapes in Opaque Media
• Medium modification of jet fragmentation in Au+Au collisions at sqrt(s_NN)=200 GeV measured in direct photon-hadron correlations
• Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
• Dijet imbalance in hadronic collisions
• High p_T Direct Photon and pi^0 Triggered Azimuthal Jet Correlations in sqrt(s)=200 GeV p+p Collisions
• Novel Phenomena in Particle Correlations in Relativistic Heavy-Ion Collisions
• $\eta$ meson production of high-energy nuclear collisions at NLO
• Photon-jet correlations in $pp$ and $p\bar{p}$ collisions
• Transient field fluctuations effects in d+Au and Au+Au collisions at \sqrt{s_nn} = 200 GeV
• Correlated Production of p and p^bar in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Background subtraction methods for precision measurements of di-hadron and jet-hadron correlations in heavy ion collisions
• Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV
• Pion production in d+Au collisions at RHIC energy
• Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV
• Measurement of $\hat{q}$ in Relativistic Heavy Ion Collisions using di-hadron correlations
• Dijet correlations at RHIC, leading-order $k_t$-factorization approach versus next-to-leading order collinear approach
• Pion and Kaon Spectra from Distributed Mass Quark Matter
• Does the Cronin Peak Disappear at LHC Energies?
• Jet fragmentation transverse momentum measurements from di-hadron correlations in $\sqrt{s}$ = 7 TeV pp and $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV p-Pb collisions
• Highlights from BNL-RHIC 2011-2013
• Double Helicity Dependence of Jet Properties from Dihadrons in Longitudinally Polarized p+p Collisions at sqrt(s) = 200 GeV
• Nonperturbative transverse momentum broadening in dihadron angular correlations in $\sqrt{s_{NN}}=200$ GeV proton-nucleus collisions
• Nonperturbative transverse-momentum-dependent effects in dihadron and direct photon-hadron angular correlations in $p+p$ collisions at $\sqrt{s}=200$ GeV
• Event shapes for hadronic final state: experimental review
• Expectations for dihadron correlation measurements at the LHC
• Jet fragmentation transverse momentum distributions in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Nuclear effects in dAu collisions from recent RHIC data
• On the jets emitted by driven Bose-Einstein condensates
• Successes and failures with hard probes
• From di-hadron correlations to parton intrinsic transverse momentum in proton-proton collisions
• Fine structure in the azimuthal transverse momentum correlations at $\sqrt{s_{NN}}=200$ GeV using the event shape analysis
• High p_T Direct Photon-Hadron Correlations Using the PHENIX Detector
• Production of twisted particles in heavy-ion collisions
• Measurements of Hard-Scattering by PHENIX at RHIC
• Measurements of Fragmentation Photons with the PHENIX Detector
• Mapping out the jet correlation landscape: a perspective from PHENIX experiment
• Measurement of inclusive jet cross section and substructure in $p$$+$$p$ collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Jet-Medium Interactions with Identified Particles
• Why the xE distribution triggered by a leading particle does not measure the fragmentation function but does measure the ratio of the transverse momenta of the away-side jet to the trigger-side jet
• How do quarks and gluons lose energy in the QGP?
• Results from PHENIX at RHIC with Implications for LHC
• Studying possible higher twist contributions in the inclusive charged hadron cross sections
• Results from RHIC with Implications for LHC
• High \pt{} particle correlations in pp collisions at LHC/ALICE
• Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV
• From RHIC to LHC
• Measurement of $\hat{q}$ in RHI collisions using di-hadron correlations
• How hadron collider experiments contributed to the development of QCD: from hard-scattering to the perfect liquid
• Nonperturbative factorization breaking and color entanglement effects in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ and $p$$+$A collisions
• Hadronization effects on transverse momentum dependent jet fragmentation function in small systems
• Jet and High $\pT$ Measurement with the ALICE Experiment
• Latest results from RHIC + Progress on determining $\hat{q}L$ in RHI collisions using di-hadron correlations
• Measurement of jet fragmentation in p + p collision at sqrt(s) = 200 GeV with the PHENIX detector
• Dijet and photon-jet correlations in proton-proton collisions at RHIC
• Jet transverse fragmentation momentum from h-h correlations in pp and p-Pb collisions