| | |
| | |
Stat |
Members: 3645 Articles: 2'500'096 Articles rated: 2609
18 April 2024 |
|
| | | |
|
Article overview
| |
|
Spin correlations and velocity-scaling in color-octet NRQCD matrix elements | Geoffrey T. Bodwin
; Jungil Lee
; D. K. Sinclair
; | Date: |
23 Mar 2005 | Journal: | Phys.Rev. D72 (2005) 014009 | Subject: | hep-lat hep-ph | Affiliation: | Argonne), Jungil Lee (Korea U.), D. K. Sinclair (Argonne | Abstract: | We compute spin-dependent decay matrix elements for S-wave charmonium and bottomonium in lattice nonrelativistic quantum chromodynamics (NRQCD). Particular emphasis is placed upon the color-octet matrix elements, since the corresponding production matrix elements are expected to appear in the dominant contributions to the production cross sections at large transverse momenta. We use three slightly different versions of the heavy-quark lattice Green’s functions in order to minimize the contributions that scale as powers of the ultraviolet cutoff. The lattice matrix elements that we calculate obey the hierarchy that is suggested by the velocity-scaling rules of NRQCD. | Source: | arXiv, hep-lat/0503032 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |