Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Charged-particle nuclear modification factors in XeXe collisions at $ \sqrt{s_{\mathrm{NN}}} = 5.44 $ TeV
 
research article

Charged-particle nuclear modification factors in XeXe collisions at $ \sqrt{s_{\mathrm{NN}}} = 5.44 $ TeV

Sirunyan, Albert M
•
Tumasyan, Armen
•
Adam, Wolfgang
Show more
October 22, 2018
Journal of High Energy Physics

The differential yields of charged particles having pseudorapidity within |η| < 1 are measured using xenon-xenon (XeXe) collisions at $ \sqrt{s_{\mathrm{NN}}} = 5.44 $ TeV. The data, corresponding to an integrated luminosity of 3.42 μb$^{−1}$, were collected in 2017 by the CMS experiment at the LHC. The yields are reported as functions of collision centrality and transverse momentum, p${T}$, from 0.5 to 100 GeV. A previously reported p${T}$ spectrum from proton-proton collisions at $ \sqrt{s}=5.02 $ TeV is used for comparison after correcting for the difference in center-of-mass energy. The nuclear modification factors using this reference, R${AA}^{*}$ , are constructed and compared to previous measurements and theoretical predictions. In head-on collisions, the R${AA}^{*}$ has a value of 0.17 in the p${T}$ range of 6–8 GeV, but increases to approximately 0.7 at 100 GeV. Above ≈6 GeV, the XeXe data show a notably smaller suppression than previous results for lead-lead (PbPb) collisions at $ \sqrt{s{\mathrm{NN}}}=5.02 $ TeV when compared at the same centrality (i.e., the same fraction of total cross section). However, the XeXe suppression is slightly greater than that for PbPb in events having a similar number of participating nucleons.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

1809.00201.pdf

Access type

openaccess

Size

753.11 KB

Format

Adobe PDF

Checksum (MD5)

1cb8a892dc3adc3c8ab1223f066debf1

Loading...
Thumbnail Image
Name

scoap3-fulltext.pdf

Access type

openaccess

Size

743.8 KB

Format

Adobe PDF

Checksum (MD5)

510db45d3e4915a1f85aeeb243c0c3a2

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés