The Charge asymmetry in $W$ boson decays produced in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

Abe, F.; Albrow, M.G.; Amidei, D.; Antos, J.; Anway-Wiese, C.; Apollinari, G.; Areti, H.; Atac, M.; Auchincloss, P.; Azfar, F.

doi:10.1103/PhysRevLett.74.850

The Charge asymmetry in $W$ boson decays produced in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

Sep, 1994

15 pages

Published in:

Phys.Rev.Lett. 74 (1995) 850-854

e-Print:

hep-ex/9501008 [hep-ex]

DOI:

10.1103/PhysRevLett.74.850

Report number:

FERMILAB-PUB-94-313-E,
CDF-PUB-ELECTROWEAK-PUBLIC-2673,
ANL-HEP-PRJ-95-42

Experiments:

FNAL-E-0741

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Abstract:

The charge asymmetry has been measured using

19,039W

decays recorded by the CDF detector during the 1992-93 run of the Tevatron Collider. The asymmetry is sensitive to the ratio of

d

and

u

quark distributions to

x<0.01

at

Q~2 \approx M_W~2

, where nonperturbative effects are minimal. It is found that of the two current sets of parton distributions, those of Martin, Roberts and Stirling (MRS) are favored over the sets most recently produced by the CTEQ collaboration. The

W

asymmetry data provide a stronger constraints on

d/u

ratio than the recent measurements of

F_2~{\mu n}/F_2~{\mu p}

which are limited by uncertainties originating from deutron corrections.

Note:

to be published in PRL

anti-p p: colliding beams
colliding beams: anti-p p
anti-p p: inclusive reaction
W: hadroproduction
hadroproduction: W
W: width
W: leptonic decay
leptonic decay: W
charge: asymmetry
rapidity dependence

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The Charge asymmetry in WWW boson decays produced in ppˉp\bar{p}ppˉ​ collisions at s=1.8\sqrt{s} = 1.8s​=1.8 TeV

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The Charge asymmetry in $W$ boson decays produced in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV