TY  - JOUR
AU  - CDF Collaboration (Aaltonen, T. et al
AU  - Cabrera, S.
PY  - 2010
DA  - 2010//
TI  - Diffractive W and Z production at the Fermilab Tevatron
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 112004 - 10pp
VL  - 82
IS  - 11
PB  - Amer Physical Soc
AB  - We report on a measurement of the fraction of events with a W or Z boson which are produced diffractively in (p) over barp collisions at root s = 1.96 TeV, using data from 0.6 fb-1 of integrated luminosity collected with the CDF II detector equipped with a Roman- pot spectrometer that detects the (p) over bar from (p) over bar + p -> (p) over bar + [X + W/Z]. We find that (1.00 +/- 0.11)% of Ws and (0.88 +/- 0.22)% of Zs are produced diffractively in a region of antiproton or proton fractional momentum loss xi of 0.03 < xi < 0.10 and 4-momentum transferred squared t of -1 < t < 0 (GeV/c)(2), where we account for the events in which the proton scatters diffractively while the antiproton dissociates, (p) over bar + p -> [X + W/Z] + p, by doubling the measured proton dissociation fraction. We also report on searches for W and Z production in double Pomeron exchange, (p) over bar + p -> [X + W/Z] + p, and on exclusive Z production, (p) over bar + p -> (p) over bar + Z + p. No signal is seen above background for these processes, and comparisons are made with expectations.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1007.5048
UR  - https://doi.org/10.1103/PhysRevD.82.112004
DO  - 10.1103/PhysRevD.82.112004
LA  - English
N1  - ISI:000286566300001
ID  - CDFCollaborationAaltonen+Cabrera2010
ER  -