REMARK ON CHARM QUARK FRAGMENTATION TO D-ASTERISK-ASTERISK MESONS

Authors
Citation
Yq. Chen et Mb. Wise, REMARK ON CHARM QUARK FRAGMENTATION TO D-ASTERISK-ASTERISK MESONS, Physical review. D. Particles and fields, 50(7), 1994, pp. 4706-4707
Citations number
10
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
50
Issue
7
Year of publication
1994
Pages
4706 - 4707
Database
ISI
SICI code
0556-2821(1994)50:7<4706:ROCQFT>2.0.ZU;2-S
Abstract
The observed D* mesons have cqBAR flavor quantum numbers and a spin-p arity of the light degrees of freedom s(l)pil = 3/2+. In the m(c) --> infinity limit the spin of the charm quark is conserved and the c --> D* fragmentation process is characterized by the probability for the charm quark to fragment to a D* meson with a given helicity for the l ight degrees of freedom. We consider the calculated b --> B(c)* fragm entation functions in the limit m(c)/m(b) --> 0 as a qualitative model for the c --> D* fragmentation functions. We find that in this model charm quark fragmentation to s(l)pil = 3/2+ light degrees of freedom with helicities +/- 1/2 is favored over fragmentation to s(l)pil = 3/2 + light degrees of freedom with helicities +/- 3/2.