prikaz prve stranice dokumenta Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV
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Scientific paper - Original scientific paper
Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV
Physical Review C - Nuclear Physics, 86 (2012), 2; 024906. https://doi.org/10.1103/PhysRevC.86.024906
(STAR Collaboration) Adamczyk, L.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Zoulkarneeva, Y.

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Adamczyk, L., Planinić, M., Poljak, N. & Zoulkarneeva, Y. (2012). Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. Physical Review C - Nuclear Physics, 86. (2). doi: 10.1103/PhysRevC.86.024906

Adamczyk, L., et al. "Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV." Physical Review C - Nuclear Physics, vol. 86, no. 2, 2012. https://doi.org/10.1103/PhysRevC.86.024906

Adamczyk, L., Mirko Planinić, Nikola Poljak and Y. Zoulkarneeva. "Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV." Physical Review C - Nuclear Physics 86, no. 2 (2012). https://doi.org/10.1103/PhysRevC.86.024906

Adamczyk, L., et al. (2012) 'Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV', Physical Review C - Nuclear Physics, 86(2). doi: 10.1103/PhysRevC.86.024906

Adamczyk L, Planinić M, Poljak N, Zoulkarneeva Y. Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV. Physical Review C - Nuclear Physics [Internet]. 2012 [cited 2024 November 15];86(2). doi: 10.1103/PhysRevC.86.024906

L. Adamczyk, M. Planinić, N. Poljak and Y. Zoulkarneeva, "Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV", Physical Review C - Nuclear Physics, vol. 86, no. 2, 2012. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:516645. [Accessed: 15 November 2024]

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Metadata
Title (english)Di-electron spectrum at mid-rapidity in p+p collisions at √s=200 GeV
AuthorL. Adamczyk
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorY. Zoulkarneeva
CollaborationSTAR Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e+e− decays, from √s=200 GeV p+p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted ω→e+e− invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of φ and J/ψ are extracted through their di-electron decay channels and are consistent with the previous measurements of φ→K+K− and J/ψ→e+e−. Our results suggest a new upper limit of the branching ratio of the η→e+e− of 1.7×10−5 at the 90% confidence level.
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. 86, no. 2, 024906
p-ISSN0556-2813
e-ISSN1089-490X
DOIhttps://doi.org/10.1103/PhysRevC.86.024906
URN:NBNurn:nbn:hr:217:516645
Publication2012
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.86.024906
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2012) by the American Physical Society. Received 9 April 2012; published 8 August 2012.
Created on2019-11-19 19:34:49