First Measurement of the t anti-t Differential Cross Section d sigma/dM(t anti-t) in p anti-p Collisions at s**(1/2)=1.96-TeV - INSPIRE

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First Measurement of the t anti-t Differential Cross Section d sigma/dM(t anti-t) in p anti-p Collisions at s**(1/2)=1.96-TeV

CDF

Collaboration

Mar, 2009

8 pages

Published in:

Phys.Rev.Lett. 102 (2009) 222003

e-Print:

0903.2850 [hep-ex]

DOI:

10.1103/PhysRevLett.102.222003

Report number:

FERMILAB-PUB-09-079-E

Experiments:

FNAL-E-0830

View in:

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reference search176 citations

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Abstract: (arXiv)

We present a measurement of the \ttbar differential cross section with respect to the \ttbar invariant mass, dSigma/dMttbar, in \ppbar collisions at

\sqrt{s}=1.96

TeV using an integrated luminosity of 2.7\invfb collected by the CDF II experiment. The \ttbar invariant mass spectrum is sensitive to a variety of exotic particles decaying into \ttbar pairs. The result is consistent with the standard model expectation, as modeled by \texttt{PYTHIA} with \texttt{CTEQ5L} parton distribution functions.

Note:

8 pages, 1 figure

13.85.Rm
14.80.-j
14.65.Ha
top: pair production
anti-p p: interaction
parton: distribution function
particle: exotic
decay
differential cross section: mass dependence
mass spectrum: (2truth)

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