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First measurement of the tt[over ] differential cross section dsigma/dM_{tt[over ]} in pp[over ] collisions at sqrt[s]=1.96 TeV.

Abstract:
We present a measurement of the tt[over ] differential cross section with respect to the tt[over ] invariant mass, dsigma/dM_{tt[over ]}, in pp[over ] collisions at sqrt[s]=1.96 TeV using an integrated luminosity of 2.7 fb;{-1} collected by the CDF II experiment. The tt[over ] invariant mass spectrum is sensitive to a variety of exotic particles decaying into tt[over ] pairs. The result is consistent with the standard model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions.

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Journal:
Physical Review Letters More from this journal
Volume:
102
Issue:
22
Pages:
222003
Publication date:
2009-06-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:124699
UUID:
uuid:fac55e2d-7e43-4352-ac84-bfbe6c71f9a9
Local pid:
pubs:124699
Source identifiers:
124699
Deposit date:
2012-12-19

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