prikaz prve stranice dokumenta Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV
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Scientific paper - Original scientific paper
Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV
Physical Review D - Particles, Fields, Gravitation and Cosmology, 85 (2012), 9; 092010. https://doi.org/10.1103/PhysRevD.85.092010
(STAR Collaboration) Adamczyk, L.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Zoulkarneeva, Y.

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Adamczyk, L., Planinić, M., Poljak, N. & Zoulkarneeva, Y. (2012). Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85. (9). doi: 10.1103/PhysRevD.85.092010

Adamczyk, L., et al. "Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV." Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 9, 2012. https://doi.org/10.1103/PhysRevD.85.092010

Adamczyk, L., Mirko Planinić, Nikola Poljak and Y. Zoulkarneeva. "Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV." Physical Review D - Particles, Fields, Gravitation and Cosmology 85, no. 9 (2012). https://doi.org/10.1103/PhysRevD.85.092010

Adamczyk, L., et al. (2012) 'Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV', Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(9). doi: 10.1103/PhysRevD.85.092010

Adamczyk L, Planinić M, Poljak N, Zoulkarneeva Y. Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology [Internet]. 2012 [cited 2024 December 04];85(9). doi: 10.1103/PhysRevD.85.092010

L. Adamczyk, M. Planinić, N. Poljak and Y. Zoulkarneeva, "Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV", Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 9, 2012. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:908272. [Accessed: 04 December 2024]

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Metadata
Title (english)Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  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 measurements of the charge-separated W+(-)→e+(- )+νe(ν̅ e) and Z/γ*→e+e- production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV. These results are based on 13.2  pb-1 of data recorded in 2009 by the STAR detector at RHIC. Production cross sections for W bosons that decay via the eν channel were measured to be σ(pp→W+X)·BR(W+→e+νe)=117.3±5.9(stat)±6.2(syst)±15.2(lumi)   pb, and σ(pp→W-X)·BR(W-→e-ν̅ e)=43.3±4.6(stat)± 3.4(syst) ±5.6(lumi)  pb. For Z/γ* production, σ(pp→Z/γ*X)·BR(Z/γ*→e+e- )=7.7±2.1(stat)-0.9+0.5(syst)±1.0(lumi)  pb was measured for di- lepton invariant masses me+e- between 70 and 110  GeV/c2. First measurements of the W cross section ratio, σ(pp→W+X)/σ(pp→W- X), at √s=500  GeV are also reported. Theoretical predictions, calculated using recent parton distribution functions, are found to agree with the measured cross sections.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review D - Particles, Fields, Gravitation and Cosmology
Numberingvol. 85, no. 9, 092010
p-ISSN1550-7998
e-ISSN1550-2368
DOIhttps://doi.org/10.1103/PhysRevD.85.092010
URN:NBNurn:nbn:hr:217:908272
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/PhysRevD.85.092010
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2012) by the American Physical Society. Received 13 December 2011; published 16 May 2012.
Created on2019-11-16 11:15:02