φ meson production in p+Al, p+Au, d+Au, and He 3 +Au collisions at sNN =200 GeV
Acharya, U. ; Oskarsson, A. LU ; Silvermyr, D. LU
and Zou, L.
(2022)
In Physical Review C
106.
- Abstract
- Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, especially the ϕ mesons which contain strange and antistrange quarks and have a relatively small hadronic-interaction cross section, are a good tool to study these effects. The PHENIX experiment has measured ϕ mesons in a specific set of small collision systems p+Al, p+Au, and 3He+Au, as well as d+Au [Adare et al., Phys. Rev. C 83, 024909 (2011)], at √sNN=200 GeV. The transverse-momentum spectra and nuclear-modification factors are presented and compared to theoretical-model predictions. The comparisons with different... (More)
- Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, especially the ϕ mesons which contain strange and antistrange quarks and have a relatively small hadronic-interaction cross section, are a good tool to study these effects. The PHENIX experiment has measured ϕ mesons in a specific set of small collision systems p+Al, p+Au, and 3He+Au, as well as d+Au [Adare et al., Phys. Rev. C 83, 024909 (2011)], at √sNN=200 GeV. The transverse-momentum spectra and nuclear-modification factors are presented and compared to theoretical-model predictions. The comparisons with different calculations suggest that quark-gluon plasma may be formed in these small collision systems at √sNN=200 GeV. However, the volume and the lifetime of the produced medium may be insufficient for observing strangeness-enhancement and jet-quenching effects. The comparison with calculations suggests that the main production mechanisms of ϕ mesons at midrapidity may be different in p+Al versus p/d/3He+Au collisions at √sNN=200 GeV. While thermal quark recombination seems to dominate in p/d/3He+Au collisions, fragmentation seems to be the main production mechanism in p+Al collisions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b44d0ff1-08c8-407f-afba-9b14f2f3e320
- author
- Acharya, U.
; Oskarsson, A.
LU
; Silvermyr, D.
LU
and Zou, L.
- author collaboration
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 106
- article number
- 014908
- publisher
- American Physical Society
- external identifiers
-
- scopus:85136470587
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.106.014908
- language
- English
- LU publication?
- yes
- id
- b44d0ff1-08c8-407f-afba-9b14f2f3e320
- date added to LUP
- 2023-01-13 13:31:35
- date last changed
- 2023-04-09 15:55:23
@article{b44d0ff1-08c8-407f-afba-9b14f2f3e320,
abstract = {{Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, especially the ϕ mesons which contain strange and antistrange quarks and have a relatively small hadronic-interaction cross section, are a good tool to study these effects. The PHENIX experiment has measured ϕ mesons in a specific set of small collision systems p+Al, p+Au, and 3He+Au, as well as d+Au [Adare et al., Phys. Rev. C 83, 024909 (2011)], at √sNN=200 GeV. The transverse-momentum spectra and nuclear-modification factors are presented and compared to theoretical-model predictions. The comparisons with different calculations suggest that quark-gluon plasma may be formed in these small collision systems at √sNN=200 GeV. However, the volume and the lifetime of the produced medium may be insufficient for observing strangeness-enhancement and jet-quenching effects. The comparison with calculations suggests that the main production mechanisms of ϕ mesons at midrapidity may be different in p+Al versus p/d/3He+Au collisions at √sNN=200 GeV. While thermal quark recombination seems to dominate in p/d/3He+Au collisions, fragmentation seems to be the main production mechanism in p+Al collisions.}},
author = {{Acharya, U. and Oskarsson, A. and Silvermyr, D. and Zou, L.}},
issn = {{2469-9985}},
language = {{eng}},
publisher = {{American Physical Society}},
series = {{Physical Review C}},
title = {{φ meson production in p+Al, p+Au, d+Au, and He 3 +Au collisions at sNN =200 GeV}},
url = {{http://dx.doi.org/10.1103/PhysRevC.106.014908}},
doi = {{10.1103/PhysRevC.106.014908}},
volume = {{106}},
year = {{2022}},
}