1. DIGITAL.CSIC
2. Ciencia y Tecnologías Físicas
3. Instituto de Física Corpuscular (IFIC)
4. (IFIC) Artículos

English   español  

Title:	Measurement of σ(pp̅ →Z)·B(Z→ττ) in pp̅ collisions at √s=1.96  TeV
Authors:	Abulencia, A.; Rodrigo, Teresa ; Cabrera, Susana ; Chuang, S. H. ; Fernández Menéndez, Javier ; Ruiz Jimeno, Alberto ; Gómez, G. ; Cuenca Almenar, Cristóbal ; Cuevas, Javier ; Palencia, Enrique ; Piedra, Jonatan ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío
Keywords:	Yan K-factor Drell-yan process Parton distributions Cross-section Collider Boson
Issue Date:	18-May-2007
Publisher:	American Physical Society
Citation:	Physical Review D 75(9): 092004 (2007)
Abstract:	We present a measurement of the inclusive production cross section for Z bosons decaying to tau leptons in p (p) over bar collisions at root s=1.96 TeV. We use a channel with one hadronically-decaying and one electronically-decaying tau. This measurement is based on 350 pb(-1) of CDF Run II data. Using a sample of 504 opposite sign e tau events with a total expected background of 190 events, we obtain sigma(p (p) over bar -> 4Z)center dot B(Z ->tau tau)=264 +/- 23(stat)+/- 14(syst)+/- 15(lumi) pb, in agreement with the next-to-next-to-leading order QCD prediction. This is the first CDF cross section measurement using hadronically-decaying taus in Run II.
Description:	26 pages, 15 figures.-- PACS nrs.: 13.38.Dg; 13.85.Qk.-- CDF Collaboration: et al.
Publisher version (URL):	http://dx.doi.org/10.1103/PhysRevD.75.092004
URI:	http://hdl.handle.net/10261/9892
DOI:	http://dx.doi.org/10.1103/PhysRevD.75.092004
ISSN:	1550-7998
Appears in Collections:	(IFIC) Artículos (IFCA) Artículos