Journal article icon

Journal article

Cancellation of Sudakov logarithms in radiative decays of quarkonia

Abstract:

We study infrared QCD effects in radiative quarkonia decays. We examine the endpoint region z→1 of the photon spectrum. We point out a cancellation mechanism for the corrections in αsnlnm(1-z), m≤2n, in the short-distance coefficient for the color-singlet Fock state in the quarkonium. The cancellation is due to the coherence of the color radiation, and applies even though logarithmic contributions are present in the jet distributions associated with the decay. We comment on the implications o...

Expand abstract
Publication status:
Published

Actions


Access Document


Authors


More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Journal:
NUCLEAR PHYSICS B
Volume:
604
Issue:
1-2
Pages:
391-404
Publication date:
2001-06-18
DOI:
ISSN:
0550-3213
URN:
uuid:c8992bfe-4461-4592-a172-c7ba26a4f5b2
Source identifiers:
16697
Local pid:
pubs:16697
Language:
English

Terms of use


Metrics



If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP