Science-advisor
REGISTER info/FAQ
Login
username
password
     
forgot password?
register here
 
Research articles
  search articles
  reviews guidelines
  reviews
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
 
 
Stat
Members: 3643
Articles: 2'487'895
Articles rated: 2609

29 March 2024
 
  » arxiv » hep-ph/0010106

 Article overview


Weak decays of Heavy mesons
Sasa Prelovsek ;
Date 11 Oct 2000
Subject hep-ph
AbstractI explore the possibility of using heavy meson decays as probes for flavour changing neutral transitions (FCNC) $c o ugamma$ and $c o ul^+l^-$. In the standard model, these are the most frequent FCN transitions among the quarks with charge $2/3e_0$. I predict the short and long distance contributions to the relevant heavy meson decays within the standard model and explore their sensitivity to different scenarios of physics beyond the standard model. The rare $B_c o B_u^*gamma$ decay is proposed as the most suitable case study of the $c o ugamma$ transition and is studied with the ISGW model. Its detection at the branching ratio much higher than $10^{-8}$ would signal new physics. Weak decays of charm mesons to a light meson and a photon or a charged lepton pair are also studied for this purpose. Their probabilities are found to be dominated by the long distance contributions and raise our hopes that they may be detected soon. A window of opportunity to probe the $c o ul^+l^-$ transition is found in the decay $D o pi l^+l^-$, at the kinematical region of high di-lepton mass. In order to study the charm meson decays, I adapt the Heavy Meson Chiral Lagrangian approach and demonstrate for its applicability by predicting the charm meson nonleptonic decay rates.
Source arXiv, hep-ph/0010106
Services Forum | Review | PDF | Favorites   
 
Visitor rating: did you like this article? no 1   2   3   4   5   yes

No review found.
 Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

  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






ScienXe.org
» my Online CV
» Free


News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2024 - Scimetrica