|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
New FOCUS results on charm mixing and CP violation | | Stefano Bianco
; | | Date: |
17 Nov 2000 | | Journal: | Nucl.Phys.Proc.Suppl. 99B (2001) 191-199 | | Subject: | hep-ex | | Affiliation: | on behalf of the FOCUS Coll., J.M.Link et al. | | Abstract: | We present a summary of recent results on CP violation and mixing in the charm quark sector based on a high statistics sample collected by photoproduction experiment FOCUS (E831 at Fermilab). We have measured the difference in lifetimes for the $D^0$ decays: $D^0 o K^-pi^+$ and $D^0 o K^-K^+$. This translates into a measurement of the $y_{CP}$ mixing parameter in the $d0d0$ system, under the assumptions that $K^-K^+$ is an equal mixture of CP odd and CP even eigenstates, and CP violation is negligible in the neutral charm meson system. We verified the latter assumption by searching for a CP violating asymmetry in the Cabibbo suppressed decay modes $D^+ o K^-K^+pi^+$, $D^0 o K^-K^+$ and $D^0 o pi^-pi^+$. We show preliminary results on a measurement of the branching ratio $Gamma(D^{*+} o pi^+ (K^+pi^-))/Gamma(D^{*+} o pi^+ (K^-pi^+))$. | | Source: | arXiv, hep-ex/0011055 | | 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