B Production In p-p and A-A Collisions

Abstract

This is an extension of our recent work on D + (cd), D o (cū) production from p-p and d-Au collisions to B + (bd), B o (bū) production from p-p and A-A collisions. The rapidity cross sections for B + (cd), B o (bū) production from both p-p and A-A collisions are estimated. Our present work makes use of previous work on J/Ψ, Ψ ′ (2S), Υ(nS) production in p-p and A-A collisions, with the main new aspect being the fragmentation probability, D b→bq , which turns out to be similar to the fragmentation probability D c→cq used in our recent work.

Transversly Polarized Proton-Proton Collisions and the Collins Fragmentation Function

“…Theoretical equations similar to Eq(5) were also used in Refs. [16], [17]. Note there are also contributions to dσ p ↑ p→πX /dy from ∆f d (x(y), 2m)∆f d(a/x(y), 2m) and ∆f u (x(y), 2m)∆f ū(a/x(y), 2m) quarks and anti-quarks.…”

“…[13,14,15] to estimte the fragmentation of a charm quark to a D, a meson consisting of a charm and anti-light quark. Ref [16] used Ref. [13] and Ref.…”