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Scientific paper - Original scientific paper
Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions
Physics Letters B, 673 (2009), 3; 183-191. https://doi.org/10.1016/j.physletb.2009.02.037
(STAR Collaboration) Abelev, B. I.; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Zuo, J. X.

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Abelev, B. I., Planinić, M., Poljak, N. & Zuo, J. X. (2009). Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions. Physics Letters B, 673. (3), 183-191. doi: 10.1016/j.physletb.2009.02.037

Abelev, B. I., et al. "Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions." Physics Letters B, vol. 673, no. 3, 2009, pp. 183-191. https://doi.org/10.1016/j.physletb.2009.02.037

Abelev, B. I., Mirko Planinić, Nikola Poljak and J. X. Zuo. "Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions." Physics Letters B 673, no. 3 (2009): 183-191. https://doi.org/10.1016/j.physletb.2009.02.037

Abelev, B. I., et al. (2009) 'Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions', Physics Letters B, 673(3), pp. 183-191. doi: 10.1016/j.physletb.2009.02.037

Abelev BI, Planinić M, Poljak N, Zuo JX. Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions. Physics Letters B [Internet]. 2009 [cited 2024 November 22];673(3):183-191. doi: 10.1016/j.physletb.2009.02.037

B. I. Abelev, M. Planinić, N. Poljak and J. X. Zuo, "Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions", Physics Letters B, vol. 673, no. 3, pp. 183-191, 2009. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:739515. [Accessed: 22 November 2024]

Metadata
Title (english)Energy and system size dependence of φ meson production in Cu + Cu and Au + Au collisions
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)
We study the beam-energy and system-size dependence of \phi meson production (using the hadronic decay mode ϕ→K+K−) by comparing the new results from Cu+Cu collisions and previously reported Au+Au collisions at √SNN=62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented are from mid-rapidity (|y|<0.5) for 0.4 < pT < 5 GeV/c. At a given beam energy, the transverse momentum distributions for φ mesons are observed to be similar in yield and shape for Cu+Cu and Au+Au colliding systems with similar average numbers of participating nucleons. The φ meson yields in nucleus-nucleus collisions, normalised by the average number of participating nucleons, are found to be enhanced relative to those from p+p collisions with a different trend compared to strange baryons. The enhancement for φ mesons is observed to be higher at √SNN = 200 GeV compared to 62.4 GeV. These observations for the produced φ(ss-) mesons clearly suggest that, at these collision energies, the source of enhancement of strange hadrons is related to the formation of a dense partonic medium in high energy nucleus-nucleus collisions and cannot be alone due to canonical suppression of their production in smaller systems.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 673, no. 3, pp. 183-191
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2009.02.037
URN:NBNurn:nbn:hr:217:739515
Publication2009
ProjectNumber: 119-0982887-1006
Title (croatian): Istraživanje hadronskih sustava upotrebom relativističkih projektila
Leader: Mirko Planinić
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://dx.doi.org/10.1016/j.physletb.2009.02.037
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 3.0 Unported (CC BY 3.0) icon
Public note© 2009 Elsevier B.V. Open access under CC BY license. Received 28 October 2008, Revised 18 February 2009, Accepted 22 February 2009, Available online 25 February 2009. Published 23 March 2009.
Created on2019-10-20 17:32:21