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Measurement of direct photon production in p+p collisions at root s=200 GeV

Adler, S. S.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Jamel, A.; Alexander, J.; Aoki, K.; Aphecetche, L. and Armendariz, R., et al. (2007) In Physical Review Letters 98(1).
Abstract
Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 < p(T)< 16 GeV/c. Next-to-leading order perturbative QCD (pQCD) describes the data well for p(T)> 5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for p(T)> 7 GeV/c.
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Physical Review Letters
volume
98
issue
1
publisher
American Physical Society
external identifiers
  • wos:000243379700013
  • scopus:33846396416
ISSN
1079-7114
DOI
10.1103/PhysRevLett.98.012002
language
English
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yes
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64f9fa27-c22e-4a72-b69e-96c1bdd0960b (old id 677689)
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2007-12-11 11:03:32
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2017-08-06 03:44:00
@article{64f9fa27-c22e-4a72-b69e-96c1bdd0960b,
  abstract     = {Cross sections for midrapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for transverse momenta of 3 &lt; p(T)&lt; 16 GeV/c. Next-to-leading order perturbative QCD (pQCD) describes the data well for p(T)&gt; 5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for p(T)&gt; 7 GeV/c.},
  articleno    = {012002},
  author       = {Adler, S. S. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Al-Jamel, A. and Alexander, J. and Aoki, K. and Aphecetche, L. and Armendariz, R. and Aronson, S. H. and Averbeck, R. and Awes, T. C. and Babintsev, V. and Baldisseri, A. and Barish, K. N. and Barnes, P. D. and Bassalleck, B. and Bathe, S. and Batsouli, S. and Baublis, V. and Bauer, F. and Bazilevsky, A. and Belikov, S. and Bjorndal, M. T. and Boissevain, J. G. and Borel, H. and Brooks, M. L. and Brown, D. S. and Bruner, N. and Bucher, D. and Buesching, H. and Bumazhnov, V. and Bunce, G. and Burward-Hoy, J. M. and Butsyk, S. and Camard, X. and Chand, P. and Chang, W. C. and Chernichenko, S. and Chi, C. Y. and Chiba, J. and Chiu, M. and Choi, I. J. and Choudhury, R. K. and Chujo, T. and Cianciolo, V. and Cobigo, Y. and Cole, B. A. and Comets, M. P. and Constantin, P. and Csanad, M. and Csorgo, T. and Cussonneau, J. 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  issn         = {1079-7114},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Measurement of direct photon production in p+p collisions at root s=200 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.98.012002},
  volume       = {98},
  year         = {2007},
}