We measure the ratio of cross section times branching fraction, Rp=σχc2B(χc2→J/ψγ)/σχc1B(χc1→J/ ψγ), in 1.1fb-1 of pp̄ collisions at s=1.96TeV. This measurement covers the kinematic range pT(J/ψ)>4.0GeV/c, η(J/ψ)<1.0, and pT(γ)>1.0GeV/c. For events due to prompt processes, we find Rp=0.395±0.016(stat)±0.015(syst). This result represents a significant improvement in precision over previous measurements of prompt χc1,2 hadro production

CDF Collaboration, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, et al. (2007). Measurement of σχc2B(χc2→J/ψγ)/σχc1B(χc1→J/ψγ) in pp¯ Collisions at s√=1.96  TeV. PHYSICAL REVIEW LETTERS, 98(23), e1-e7 [10.1103/PhysRevLett.98.232001].

Measurement of σχc2B(χc2→J/ψγ)/σχc1B(χc1→J/ψγ) in pp¯ Collisions at s√=1.96  TeV

M. Casarsa;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;J. Zhou;ZUCCHELLI, STEFANO
2007

Abstract

We measure the ratio of cross section times branching fraction, Rp=σχc2B(χc2→J/ψγ)/σχc1B(χc1→J/ ψγ), in 1.1fb-1 of pp̄ collisions at s=1.96TeV. This measurement covers the kinematic range pT(J/ψ)>4.0GeV/c, η(J/ψ)<1.0, and pT(γ)>1.0GeV/c. For events due to prompt processes, we find Rp=0.395±0.016(stat)±0.015(syst). This result represents a significant improvement in precision over previous measurements of prompt χc1,2 hadro production
2007
CDF Collaboration, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, et al. (2007). Measurement of σχc2B(χc2→J/ψγ)/σχc1B(χc1→J/ψγ) in pp¯ Collisions at s√=1.96  TeV. PHYSICAL REVIEW LETTERS, 98(23), e1-e7 [10.1103/PhysRevLett.98.232001].
CDF Collaboration; A. Abulencia; J. Adelman; T. Affolder; T. Akimoto; M. G. Albrow; D. Ambrose; S. Amerio; D. Amidei; A. Anastassov; K. Anikeev; A. An...espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/53719
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 57
  • ???jsp.display-item.citation.isi??? 40
social impact