b-quark production and dilepton cross sections at hadron colliders

Dimitriadis, PS; Papatsimpa, LB; Vlassopulos, SDP

dc.contributor.author	Dimitriadis, PS	en
dc.contributor.author	Papatsimpa, LB	en
dc.contributor.author	Vlassopulos, SDP	en
dc.date.accessioned	2014-03-01T01:07:06Z
dc.date.available	2014-03-01T01:07:06Z
dc.date.issued	1988	en
dc.identifier.issn	05562821	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9789
dc.subject	Cross Section	en
dc.subject	Hadron Colliders	en
dc.title	b-quark production and dilepton cross sections at hadron colliders	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.38.2776	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.38.2776	en
heal.publicationDate	1988	en
heal.abstract	We calculate the cross sections p»p or pp(bl1)(b»l2)+X for like- and unlike-sign dileptons, l1l2=l±l±,l±l, due to b-quark production, from CERN Collider to Superconducting Super Collider energies, taking into account (i) the QCD fusion processes qq», ggbb», (ii) the tree-level contributions to the decays b,c+X and the cascade process bc, the semileptonic branching fraction of the charm quark being fixed by data, and (iii) the fragmentation processes bB, softening the muon distributions by p/p20%. The small contributions due to charm production are also taken, approximately, into account. We present analytic formulas, admitting a simple intuitive interpretation, which, within theoretical uncertainties, agree with present measurements of the dimuon cross section at the CERN Collider, as well as with the results of Monte Carlo estimates of the ±±/+- ratio (given no B0-B» 0 mixing) and the fraction of dimuons arising from cc» production. Our procedure is useful for calculating the standard dilepton background, e.g., to B0-B»0 oscillations or new-particle signatures at a given energy for the desired transverse-momentum and invariant-mass cuts, without Monte Carlo simulations. © 1988 The American Physical Society.	en
heal.journalName	Physical Review D	en
dc.identifier.doi	10.1103/PhysRevD.38.2776	en
dc.identifier.volume	38	en
dc.identifier.issue	9	en
dc.identifier.spage	2776	en
dc.identifier.epage	2784	en