We present a measurement of the tt-bar differential cross section with respect to the tt-bar invariant mass, d sigma/dM_tt-bar in p anti-p collisions at s**(1/2) = 1.96 TeV using an integrated luminosity of 2.7 fb-1 collected by the CDF II experiment. The tt-bar invariant mass spectrum is sensitive to a variety of exotic particles decaying into tt-bar pairs. The result is consistent with the standard model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions.
A. Castro, M. Deninno, P. Mazzanti, N. Moggi, F. Rimondi, F. Semeria, et al. (2009). First Measurement of the tt-bar Differential Cross Section d sigma/dM_tt-bar in p anti-p Collisions at s**(1/2) =1.96 TeV. PHYSICAL REVIEW LETTERS, 102, 222003-1-222003-8 [10.1103/PhysRevLett.102.222003].
First Measurement of the tt-bar Differential Cross Section d sigma/dM_tt-bar in p anti-p Collisions at s**(1/2) =1.96 TeV
CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2009
Abstract
We present a measurement of the tt-bar differential cross section with respect to the tt-bar invariant mass, d sigma/dM_tt-bar in p anti-p collisions at s**(1/2) = 1.96 TeV using an integrated luminosity of 2.7 fb-1 collected by the CDF II experiment. The tt-bar invariant mass spectrum is sensitive to a variety of exotic particles decaying into tt-bar pairs. The result is consistent with the standard model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
