|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
27 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The $Dpi$ form factors from analyticity and unitarity | | B. Ananthanarayan
; I. Caprini
; I. Sentitemsu Imsong
; | | Date: |
24 Feb 2012 | | Abstract: | We study the shape parameters of the $Dpi$ scalar and vector form factors
using as input dispersion relations and unitarity for the moments of suitable
heavy-light correlators evaluated with Operator Product Expansions, including
$O(alpha_s^2)$ terms in perturbative QCD. For the scalar form factor, a low
energy theorem and phase information on the unitarity cut are implemented to
further constrain the shape parameters. We finally determine points on the real
axis and isolate regions in the complex energy plane where zeros of the form
factors are excluded. | | Source: | arXiv, 1202.5401 | | 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:
| |
REGISTER