prikaz prve stranice dokumenta Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations
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Scientific paper - Original scientific paper
Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations
Physical Review C - Nuclear Physics, 82 (2010), 3; 034909. https://doi.org/10.1103/PhysRevC.82.034909
(STAR Collaboration) Abelev, B. I.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Zuo, J. X.

Institutional repository: Repository of the Faculty of Science

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Abelev, B. I., Planinić, M., Poljak, N. & Zuo, J. X. (2010). Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations. Physical Review C - Nuclear Physics, 82. (3). doi: 10.1103/PhysRevC.82.034909

Abelev, B. I., et al. "Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations." Physical Review C - Nuclear Physics, vol. 82, no. 3, 2010. https://doi.org/10.1103/PhysRevC.82.034909

Abelev, B. I., Mirko Planinić, Nikola Poljak and J. X. Zuo. "Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations." Physical Review C - Nuclear Physics 82, no. 3 (2010). https://doi.org/10.1103/PhysRevC.82.034909

Abelev, B. I., et al. (2010) 'Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations', Physical Review C - Nuclear Physics, 82(3). doi: 10.1103/PhysRevC.82.034909

Abelev BI, Planinić M, Poljak N, Zuo JX. Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations. Physical Review C - Nuclear Physics [Internet]. 2010 [cited 2024 November 27];82(3). doi: 10.1103/PhysRevC.82.034909

B. I. Abelev, M. Planinić, N. Poljak and J. X. Zuo, "Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations", Physical Review C - Nuclear Physics, vol. 82, no. 3, 2010. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:412845. [Accessed: 27 November 2024]

Metadata
Title (english)Parton energy loss in heavy-ion collisions via direct-photon and charged-particle azimuthal correlations
AuthorB. I. Abelev
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorJ. X. Zuo
CollaborationSTAR Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Charged-particle spectra associated with direct photon (γdir) and π0 are measured in p+p and Au+Au collisions at center-of-mass energy √sNN=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. A shower-shape analysis is used to partially discriminate between γdir and π0. Assuming no associated charged particles in the γdir direction (near side) and small contribution from fragmentation photons (γfrag), the associated charged-particle yields opposite to γdir (away side) are extracted. In central Au+Au collisions, the charged-particle yields at midrapidity (|η|<1) and high transverse momentum (3<pTassoc<16 GeV/c) associated with γdir and π0 (|η|<0.9, 8<pTtrig<16 GeV/c) are suppressed by a factor of 3–5 compared with p+p collisions. The observed suppression of the associated charged particles is similar for γdir and π0 and independent of the γdir energy within uncertainties. These measurements indicate that, in the kinematic range covered and within our current experimental uncertainties, the parton energy loss shows no sensitivity to the parton initial energy, path length, or color charge.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C - Nuclear Physics
Numberingvol. 82, no. 3, 034909
p-ISSN0556-2813
e-ISSN1089-490X
DOIhttps://doi.org/10.1103/PhysRevC.82.034909
URN:NBNurn:nbn:hr:217:412845
Publication2010
ProjectNumber: 119-0982887-1006
Title (croatian): Istraživanje hadronskih sustava upotrebom relativističkih projektila
Leader: Mirko Planinić
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://link.aps.org/doi/10.1103/PhysRevC.82.034909
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2010) by the American Physical Society. Received 9 December 2009; published 30 September 2010.
Created on2019-11-03 16:29:42