| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
20 April 2024 |
|
| | | |
|
Article overview
| |
|
Transverse Resummation for Direct Photon Production | Christopher Edmond Fink
; | Date: |
26 May 2001 | Subject: | hep-ph | Affiliation: | Florida State University | Abstract: | Quantum Chromodynamics predicts radiative terms which, at low transverse momentum of an observed multi-particle system, can be large enough to threaten the legitimacy of a fixed-order perturbative treatment. We present a subtraction-style calculation which sums these terms to all orders for a direct photon plus jet final state, and show that the kinematic effect of such a resummation is significant even after integration over the jet. An improved matching algorithm is prescribed for the transition to the perturbative regime, and re-examination of the nonperturbative regime indicates that simple Gaussian parametrizations are to be favored, with coefficients that depend not on the photon-jet mass, but on the color structure of the initiated subprocess. Agreement with data is significantly improved, and the method is expected to have applicability in general for processes with steeply-falling spectra. | Source: | arXiv, hep-ph/0105276 | 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 Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |