We measure the asymmetry in the charge-weighted rapidity qy(l) of the lepton in semileptonic t (t) over bar decays recorded with the CDF II detector using the full Tevatron Run II sample, corresponding to an integrated luminosity of 9: 4 fb(-1). A parametrization of the asymmetry as a function of qy(l) is used to correct for the finite acceptance of the detector and recover the production-level asymmetry. The result of A(FB)(l) = 0.094(-0.029)(+0.032) is to be compared to the standard model next-to-leading-order prediction of A(FB)(l) = 0.038 +/- 0.003.

Measurement of the leptonic asymmetry in t(t)over-bar events produced in p(p)over-bar collisions at root s=1.96 TeV

INTROZZI, GIANLUCA;
2013-01-01

Abstract

We measure the asymmetry in the charge-weighted rapidity qy(l) of the lepton in semileptonic t (t) over bar decays recorded with the CDF II detector using the full Tevatron Run II sample, corresponding to an integrated luminosity of 9: 4 fb(-1). A parametrization of the asymmetry as a function of qy(l) is used to correct for the finite acceptance of the detector and recover the production-level asymmetry. The result of A(FB)(l) = 0.094(-0.029)(+0.032) is to be compared to the standard model next-to-leading-order prediction of A(FB)(l) = 0.038 +/- 0.003.
2013
The Physics category includes resources of a broad, general nature that contain materials from all areas of physics, The category also includes resources specifically concerned with the following physics sub-fields: mathematical physics, particle and nuclear physics, physics of fluids and plasmas, quantum physics, and theoretical physics.
Esperti anonimi
Inglese
Internazionale
STAMPA
88
072003
CDF; TEVATRON; FERMILAB
408
info:eu-repo/semantics/article
262
T., Aaltonen; S., Amerio; D., Amidei; A., Anastassov; A., Annovi; J., Antos; G., Apollinari; J. A., Appel; T., Arisawa; A., Artikov; J., Asaadi; W., A...espandi
1 Contributo su Rivista::1.1 Articolo in rivista
none
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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/11571/851049
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 50
  • ???jsp.display-item.citation.isi??? 48
social impact