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Titolo:
Cross sections for B-meson hadroproduction and up-to-date models
Autore:
Piskounova, OI;
Indirizzi:
Russian Acad Sci, PN Lebedev Phys Inst, Moscow 117924, Russia Russian AcadSci Moscow Russia 117924 v Phys Inst, Moscow 117924, Russia
Titolo Testata:
PHYSICS OF ATOMIC NUCLEI
fascicolo: 2, volume: 64, anno: 2001,
pagine: 342 - 345
SICI:
1063-7788(200102)64:2<342:CSFBHA>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
P(P)OVER-BAR COLLISIONS; ROOT-S=1.8 TEV; INCLUSIVE SPECTRA; STRING MODEL; QUARK; ASYMMETRIES; COLLIDER; ENERGIES; PHYSICS; POMERON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Piskounova, OI Russian Acad Sci, PN Lebedev Phys Inst, Leninskii Pr 53, Moscow 117924, Russia Russian Acad Sci Leninskii Pr 53 Moscow Russia 117924 ssia
Citazione:
O.I. Piskounova, "Cross sections for B-meson hadroproduction and up-to-date models", PHYS ATOM N, 64(2), 2001, pp. 342-345

Abstract

The cross sections for B-meson production as obtained on the basis of the PYTHIA code and the Quark-Gluon String Model (QGSM) are compared at energies of the proton colliders SPS, Tevatron, and LHC. Model predictions are based on the idea of exchanges of a supercritical Pomeron with phenomenological intercept Delta (p)(0) = 0.3 for heavy-quark production. The transverse-momentum spectra of B mesons are also compared. It is shown that the cross sections calculated with PYTHIA using CTEQ structure functions are at odds with the asymptotic estimate of the cross sections for B (B) over bar production within the QGSM. Asymmetries between the spectra of B-0 and (B) over bar (0) mesons also contradict the PYTHIA result. The reasons for the difference are discussed. (C) 2001 MAIK "Nauka/Interperiodica".

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Documento generato il 22/01/20 alle ore 12:50:59