Abstract
We compute fragmentation functions for a quark to fragment to a quarkonium through an S-wave spin-triplet heavy quark-antiquark pair. We consider both color-singlet and color-octet heavy quark-antiquark (QQ¯) pairs. We give results for the case in which the fragmenting quark and the quark that is a constituent of the quarkonium have different flavors and for the case in which these quarks have the same flavors. Our results for the sum over all spin polarizations of the QQ¯ pairs confirm previous results. Our results for longitudinally polarized QQ¯ pairs agree with previous calculations for the same flavor cases and correct an error in a previous calculation for the different-flavor case.
| Original language | English |
|---|---|
| Article number | 074013 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 91 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2015 Apr 8 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Quark fragmentation into spin-triplet S-wave quarkonium. / Bodwin, Geoffrey T.; Chung, Hee Sok; Kim, U. Rae; Lee, Jungil.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 91, No. 7, 074013, 08.04.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quark fragmentation into spin-triplet S-wave quarkonium
AU - Bodwin, Geoffrey T.
AU - Chung, Hee Sok
AU - Kim, U. Rae
AU - Lee, Jungil
PY - 2015/4/8
Y1 - 2015/4/8
N2 - We compute fragmentation functions for a quark to fragment to a quarkonium through an S-wave spin-triplet heavy quark-antiquark pair. We consider both color-singlet and color-octet heavy quark-antiquark (QQ¯) pairs. We give results for the case in which the fragmenting quark and the quark that is a constituent of the quarkonium have different flavors and for the case in which these quarks have the same flavors. Our results for the sum over all spin polarizations of the QQ¯ pairs confirm previous results. Our results for longitudinally polarized QQ¯ pairs agree with previous calculations for the same flavor cases and correct an error in a previous calculation for the different-flavor case.
AB - We compute fragmentation functions for a quark to fragment to a quarkonium through an S-wave spin-triplet heavy quark-antiquark pair. We consider both color-singlet and color-octet heavy quark-antiquark (QQ¯) pairs. We give results for the case in which the fragmenting quark and the quark that is a constituent of the quarkonium have different flavors and for the case in which these quarks have the same flavors. Our results for the sum over all spin polarizations of the QQ¯ pairs confirm previous results. Our results for longitudinally polarized QQ¯ pairs agree with previous calculations for the same flavor cases and correct an error in a previous calculation for the different-flavor case.
UR - http://www.scopus.com/inward/record.url?scp=84929121343&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84929121343&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.91.074013
DO - 10.1103/PhysRevD.91.074013
M3 - Article
VL - 91
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 0556-2821
IS - 7
M1 - 074013
ER -