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Title: Jet properties from dihadron correlations in p+p collisions at {radical}(s)=200 GeV

Abstract

The properties of jets produced in p+p collisions at {radical}(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{sub T}. The extracted value, {radical}(<j{sub T}{sup 2}>)=585{+-}6(stat){+-}15(sys) MeV/c, is constant with respect to the trigger particle transverse momentum, and comparable to the previous lower {radical}(s) measurements. The width of the away-side peak is shown to be a convolution of j{sub T} with the fragmentation variable, z, and the partonic transverse momentum, k{sub T}. The <z> is determined through a combined analysis of the measured {pi}{sup 0} inclusive and associated spectra using jet-fragmentation functions measured in e{sup +}e{sup -} collisions. The final extracted values of k{sub T} are then determined to also be independent of the trigger particle transverse momentum, over the range measured, with value of {radical}(<k{sub T}{sup 2}>)=2.68{+-}0.07(stat){+-}0.34(sys) GeV/c.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
Publication Date:
OSTI Identifier:
20871279
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.74.072002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRELATION FUNCTIONS; CORRELATIONS; ELECTRON-POSITRON INTERACTIONS; GEV RANGE; JET MODEL; LEADING PARTICLES; MEV RANGE; PIONS NEUTRAL; PROTON-PROTON INTERACTIONS; TRANSVERSE MOMENTUM

Citation Formats

Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, and Shea, T K. Jet properties from dihadron correlations in p+p collisions at {radical}(s)=200 GeV. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.74.072002.
Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, & Shea, T K. Jet properties from dihadron correlations in p+p collisions at {radical}(s)=200 GeV. United States. https://doi.org/10.1103/PHYSREVD.74.072002
Adler, S S, Aronson, S H, Chujo, T, David, G, Desmond, E J, Franz, A, Haggerty, J S, Harvey, M, Johnson, B M, Kistenev, E, Kroon, P J, Makdisi, Y I, Mioduszewski, S, Mitchell, J T, Morrison, D P, O'Brien, E, Pinkenburg, C, Pisani, R P, Purschke, M L, and Shea, T K. 2006. "Jet properties from dihadron correlations in p+p collisions at {radical}(s)=200 GeV". United States. https://doi.org/10.1103/PHYSREVD.74.072002.
@article{osti_20871279,
title = {Jet properties from dihadron correlations in p+p collisions at {radical}(s)=200 GeV},
author = {Adler, S S and Aronson, S H and Chujo, T and David, G and Desmond, E J and Franz, A and Haggerty, J S and Harvey, M and Johnson, B M and Kistenev, E and Kroon, P J and Makdisi, Y I and Mioduszewski, S and Mitchell, J T and Morrison, D P and O'Brien, E and Pinkenburg, C and Pisani, R P and Purschke, M L and Shea, T K},
abstractNote = {The properties of jets produced in p+p collisions at {radical}(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{sub T}. The extracted value, {radical}(<j{sub T}{sup 2}>)=585{+-}6(stat){+-}15(sys) MeV/c, is constant with respect to the trigger particle transverse momentum, and comparable to the previous lower {radical}(s) measurements. The width of the away-side peak is shown to be a convolution of j{sub T} with the fragmentation variable, z, and the partonic transverse momentum, k{sub T}. The <z> is determined through a combined analysis of the measured {pi}{sup 0} inclusive and associated spectra using jet-fragmentation functions measured in e{sup +}e{sup -} collisions. The final extracted values of k{sub T} are then determined to also be independent of the trigger particle transverse momentum, over the range measured, with value of {radical}(<k{sub T}{sup 2}>)=2.68{+-}0.07(stat){+-}0.34(sys) GeV/c.},
doi = {10.1103/PHYSREVD.74.072002},
url = {https://www.osti.gov/biblio/20871279}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 74,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2006},
month = {Sun Oct 01 00:00:00 EDT 2006}
}