High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV

We present the measurement of nonphotonic electron production at high transverse momentum (pT>2.5  GeV/c) [(p subscript T > 2.5 GeV/c)] in p+p collisions at √s=200  [square root of s=200] GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider...

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Main Authors: Balewski, Jan T., Betancourt, Michael Joseph, Corliss, Ross Cameron, Hays-Wehle, James Prewitt, Leight, William Axel, Milner, Richard G., Redwine, Robert P., Seele, Joseph Patrick, Steadman, Stephen G., Surrow, Bernd, van Nieuwenhuizen, Gerrit Jan, Walker, Matthew H.
Other Authors: Bates Linear Accelerator Center
Format: Article
Language:en_US
Published: American Physical Society 2011
Online Access:http://hdl.handle.net/1721.1/66226
https://orcid.org/0000-0002-5515-4563
https://orcid.org/0000-0001-5839-707X
https://orcid.org/0000-0002-0031-1963
https://orcid.org/0000-0002-9107-6312
id mit1721.1-66226
record_format dspace
spelling mit1721.1-662262019-09-12T09:51:44Z High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P. Seele, Joseph Patrick Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, Gerrit Jan Walker, Matthew H. Bates Linear Accelerator Center Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Surrow, Bernd Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P. Seele, Joseph Patrick Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, Gerrit Jan Walker, Matthew H. We present the measurement of nonphotonic electron production at high transverse momentum (pT>2.5  GeV/c) [(p subscript T > 2.5 GeV/c)] in p+p collisions at √s=200  [square root of s=200] GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured nonphotonic electron cross sections with previously published RHIC data and perturbative quantum chromodynamics calculations. Using the relative contributions of B and D mesons to nonphotonic electrons, we determine the integrated cross sections of electrons (e++e-/2) [e superscript + plus e superscript - /2)] at 3  GeV/c<pT<10  GeV/c [3 GeV/c < p subscript T <10 GeV/c] from bottom and charm meson decays to be [(dσ(B→e)+(B→D→e))/(dye)]ye=0=4.0±0.5(stat)±1.1(syst) [[(d delta subscript (B→e) + (B→D→e) / (dY subscript e)] subscript ye=0 = 4.0±0.5(stat)±1.1(syst)]  nb and [(dσD→e)/(dye)]ye=0=6.2±0.7(stat)±1.5(syst) [[(d delta subscript D→e) / (dY subscript e)] subscript ye=0 = 6.2±0.7(stat)±1.5(syst)]  nb, respectively. United States. Dept. of Energy. Office of Nuclear Physics United States. Dept. of Energy. Office of High Energy Physics National Science Foundation (U.S.). Alfred P. Sloan Foundation 2011-10-12T19:18:54Z 2011-10-12T19:18:54Z 2011-03 2011-02 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/66226 Agakishiev, H. et al. (STAR Collaboration) "High pT nonphotonic electron production in p+p collisions at √s=200  GeV" Phys. Rev. D 83, 052006 (2011) © 2011 American Physical Society https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0001-5839-707X https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 en_US http://dx.doi.org/10.1103/PhysRevD.83.052006 Physical review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
institution DSpace@MIT
collection DSpace
language en_US
description We present the measurement of nonphotonic electron production at high transverse momentum (pT>2.5  GeV/c) [(p subscript T > 2.5 GeV/c)] in p+p collisions at √s=200  [square root of s=200] GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured nonphotonic electron cross sections with previously published RHIC data and perturbative quantum chromodynamics calculations. Using the relative contributions of B and D mesons to nonphotonic electrons, we determine the integrated cross sections of electrons (e++e-/2) [e superscript + plus e superscript - /2)] at 3  GeV/c<pT<10  GeV/c [3 GeV/c < p subscript T <10 GeV/c] from bottom and charm meson decays to be [(dσ(B→e)+(B→D→e))/(dye)]ye=0=4.0±0.5(stat)±1.1(syst) [[(d delta subscript (B→e) + (B→D→e) / (dY subscript e)] subscript ye=0 = 4.0±0.5(stat)±1.1(syst)]  nb and [(dσD→e)/(dye)]ye=0=6.2±0.7(stat)±1.5(syst) [[(d delta subscript D→e) / (dY subscript e)] subscript ye=0 = 6.2±0.7(stat)±1.5(syst)]  nb, respectively.
author2 Bates Linear Accelerator Center
author_facet Bates Linear Accelerator Center
Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Leight, William Axel
Milner, Richard G.
Redwine, Robert P.
Seele, Joseph Patrick
Steadman, Stephen G.
Surrow, Bernd
van Nieuwenhuizen, Gerrit Jan
Walker, Matthew H.
format Article
author Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Leight, William Axel
Milner, Richard G.
Redwine, Robert P.
Seele, Joseph Patrick
Steadman, Stephen G.
Surrow, Bernd
van Nieuwenhuizen, Gerrit Jan
Walker, Matthew H.
spellingShingle Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Leight, William Axel
Milner, Richard G.
Redwine, Robert P.
Seele, Joseph Patrick
Steadman, Stephen G.
Surrow, Bernd
van Nieuwenhuizen, Gerrit Jan
Walker, Matthew H.
High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
author_sort Balewski, Jan T.
title High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
title_short High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
title_full High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
title_fullStr High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
title_full_unstemmed High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] GeV
title_sort high pt [p subscript t] nonphotonic electron production in p+p collisions at √s=200  [square root of s=200] gev
publisher American Physical Society
publishDate 2011
url http://hdl.handle.net/1721.1/66226
https://orcid.org/0000-0002-5515-4563
https://orcid.org/0000-0001-5839-707X
https://orcid.org/0000-0002-0031-1963
https://orcid.org/0000-0002-9107-6312
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score 14.09242

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