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...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
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| 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 |
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| author | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Leight, William Axel Seele, Joseph Patrick Surrow, Bernd Milner, Richard G Redwine, Robert P Steadman, Stephen G van Nieuwenhuizen, Gerrit J Walker, Matthew H |
| 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 Seele, Joseph Patrick Surrow, Bernd Milner, Richard G Redwine, Robert P Steadman, Stephen G van Nieuwenhuizen, Gerrit J Walker, Matthew H |
| author_sort | Balewski, Jan T. |
| collection | MIT |
| 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. |
| first_indexed | 2024-09-23T16:42:13Z |
| format | Article |
| id | mit-1721.1/66226 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:42:13Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/662262023-02-26T08:16:17Z 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 Seele, Joseph Patrick Surrow, Bernd Milner, Richard G Redwine, Robert P Steadman, Stephen G van Nieuwenhuizen, Gerrit J 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 |
| spellingShingle | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Leight, William Axel Seele, Joseph Patrick Surrow, Bernd Milner, Richard G Redwine, Robert P Steadman, Stephen G van Nieuwenhuizen, Gerrit J Walker, Matthew H High pT [p subscript T] nonphotonic electron production in p+p collisions at √s=200 [square root of s=200] GeV |
| title | 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_short | 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 |
| 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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