The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sqrt(sNN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range pt = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 5 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher pt, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pt in the range pt=40-100 GeV/c.
Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN) = 2.76 TeV
D'Agnolo, Raffaele Tito;Foa', Lorenzo;Broccolo, Giuseppe;Ligabue, Franco;Azzurri, Paolo;Rolandi, Luigi
2012
Abstract
The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sqrt(sNN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range pt = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 5 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher pt, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pt in the range pt=40-100 GeV/c.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
Study-of-high-pT.pdf
accesso aperto
Descrizione: journal article full text
Tipologia:
Altro materiale allegato
Licenza:
Creative Commons
Dimensione
997.91 kB
Formato
Adobe PDF
|
997.91 kB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
