InclusiveB-meson production ine+e−andpp¯collisions
نویسندگان
چکیده
منابع مشابه
φ-meson production in proton-proton collisions
The production of φ-mesons in proton-proton collisions is investigated within a relativistic meson-exchange model of hadronic interactions. The experimental prerequisites for extracting the NNφ coupling strength from this reaction are discussed. In the absence of a sufficient set of data, which would enable an accurate determination of the NNφ coupling strength, we perform a combined analysis, ...
متن کاملInclusive B - Meson Production in e + e − and pp̄ Collisions
We provide nonperturbative fragmentation functions for B mesons, both at leading and next-to-leading order in the MS factorization scheme with five massless quark flavors. They are determined by fitting the fractional energy distribution of B mesons inclusively produced in e+e− annihilation at CERN LEP1. Theoretical predictions for the inclusive production of B mesons with high transverse momen...
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We study the possibility of ρ − a0 mixing via N-N excitations in dense nuclear matter. This mixing is found to induce a peak in the dilepton spectra at an invariant mass equal to that of the a0. We calculate the cross section for dilepton production through mixing and we compare its size with that of π − π annihilation. In-medium masses and mixing angles are also calculated. Some preliminary re...
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The cross sections for several γγ → V V processes exhibit strong enhancements near threshold, where V denotes a vector meson. The pattern of these enhancements is not well understood; for example, γγ → ρρ shows an appreciable peak, while γγ → ρρ does not. Some possible mechanisms for this behavior are discussed. Tests are proposed involving production of systems containing heavier quarks, e.g.,...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1998
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.58.034016