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Forward-backward asymmetry in top-quark production in pp̄ collisions at s=1.96TeV

Abstract:
We present measurements of the forward-backward charge asymmetry in top pair production using 1.9fb-1 of pp̄ collisions at s=1.96TeV recorded with the Collider Detector at Fermilab II. Correcting for acceptance and measurement dilutions we obtain parton-level asymmetries of AFBpp̄=0.17±0.08 in the pp̄ frame and AFBtt̄=0.24±0.14 in the tt̄ frame. The values are consistent with the standard model expectation and disfavor exotic production mechanisms with significant negative values. © 2008 The American Physical Society.

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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, BÁ More by this author
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Journal:
Physical Review Letters
Volume:
101
Issue:
20
Publication date:
2008-11-12
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:1d6ab0ee-141d-413f-8506-26a065cd3728
Source identifiers:
117365
Local pid:
pubs:117365
Language:
English

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