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Forward-backward asymmetry in top-quark production in pp[over] collisions at sqrt[s]=1.96 TeV.

Abstract:
We present measurements of the forward-backward charge asymmetry in top pair production using 1.9 fb;{-1} of pp[over ] collisions at sqrt[s]=1.96 TeV recorded with the Collider Detector at Fermilab II. Correcting for acceptance and measurement dilutions we obtain parton-level asymmetries of A_{FB};{pp[over ]}=0.17+/-0.08 in the pp[over ] frame and A_{FB};{tt[over ]}=0.24+/-0.14 in the tt[over ] frame. The values are consistent with the standard model expectation and disfavor exotic production mechanisms with significant negative values.
Publication status:
Published

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Authors


Aaltonen, T More by this author
Adelman, J More by this author
Akimoto, T More by this author
Albrow, MG More by this author
González, BA More by this author
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Journal:
Physical review letters
Volume:
101
Issue:
20
Pages:
202001
Publication date:
2008-11-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:80d00dc3-b47f-4c3f-9145-97c30c3f0445
Source identifiers:
19792
Local pid:
pubs:19792
Language:
English
Keywords:

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