Single Electrons from Heavy-Flavor Decays in p + p Collisions at √s = 200 GeV
Physical Review Letters Volume 96 Issue 3
Page 032001-1-032001-6
published_at 2006-01-26
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| File | |
| Title ( eng ) |
Single Electrons from Heavy-Flavor Decays in p + p Collisions at √s = 200 GeV
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| Creator |
PHENIX Collaboration
Enokizono Akitomo
Hachiya Takashi
Kohama Takeshi
Nakamura Tomoaki
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| Source Title |
Physical Review Letters
|
| Volume | 96 |
| Issue | 3 |
| Start Page | 032001-1 |
| End Page | 032001-6 |
| Abstract |
The invariant differential cross section for inclusive electron production in p+p collisions at s=200GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.4≤pT≤5.0GeV/c in the central rapidity region (|η|≤0.35). The contribution to the inclusive electron spectrum from semileptonic decays of hadrons carrying heavy flavor, i.e., charm quarks or, at high pT, bottom quarks, is determined via three independent methods. The resulting electron spectrum from heavy-flavor decays is compared to recent leading and next-to-leading order perturbative QCD calculations. The total cross section of charm quark-antiquark pair production is determined to be σcc̅=0.92±0.15(stat) ±0.54(syst)mb.
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| Keywords |
proton-proton inclusive interactions
electron production
meson leptonic decay
semileptonic decays
meson resonances
charm particles
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
American Physical Society
|
| Date of Issued | 2006-01-26 |
| Rights |
Copyright (c) 2006 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.96.032001
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.96.032001
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