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DE2008941180

Publication Date	2008
Personal Author	Bridgeman, A. P.
Page Count	125
Abstract	Presented is a measurement of the t(bar t) differential cross section, d(sigma)/dM(sub t(bar t)), in p(bar p) collisions at (radical)s = 1.96 TeV using 2.7 fb(sup -1) of CDF II data. I find that d(sigma)/dM(sub t(bar t)) is consistent with the Standard Model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions. I set limits on the ratio (kappa)/M(sub Pl) in the Randall-Sundrum model by looking for Kaluza Klein gravitons which decay to top quarks. I find (kappa)/M(sub Pl) > 0.16 at the 95% confidence level.
Keywords	T-quarks Differential cross sections Standard model Distribution functions Decay Fermilab collider detector Gravitons Quarks
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Illinois Univ. at Urbana-Champaign.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200910

Measurement of the tt Differential Cross Section do/dM (sub t overbar t) p overbar p Collisions at Square Root of s equals 1.96 TEV.

Measurement of the tt Differential Cross Section do/dM (sub t overbar t) p overbar p Collisions at Square Root of s equals 1.96 TEV.
DE2008941180

Publication Date	2008
Personal Author	Bridgeman, A. P.
Page Count	125
Abstract	Presented is a measurement of the t(bar t) differential cross section, d(sigma)/dM(sub t(bar t)), in p(bar p) collisions at (radical)s = 1.96 TeV using 2.7 fb(sup -1) of CDF II data. I find that d(sigma)/dM(sub t(bar t)) is consistent with the Standard Model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions. I set limits on the ratio (kappa)/M(sub Pl) in the Randall-Sundrum model by looking for Kaluza Klein gravitons which decay to top quarks. I find (kappa)/M(sub Pl) > 0.16 at the 95% confidence level.
Keywords	T-quarks Differential cross sections Standard model Distribution functions Decay Fermilab collider detector Gravitons Quarks
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Illinois Univ. at Urbana-Champaign.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200910