Logo del repository
  1. Home
 
Opzioni

Measurements of direct CP asymmetries in B →xsγ decays using sum of exclusive decays

Lees, J. P.
•
Poireau, V.
•
Tisserand, V.
altro
Wu, S. L.
2014
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We measure the direct CP violation asymmetry, ACP, in B→Xsγand the isospin difference of the asymmetry, ΔACP, using 429fb-1 of data collected at(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy e+e- storage rings operating at the SLAC National Accelerator Laboratory. B mesons are reconstructed from ten charged B final states and six neutral B final states. We find ACP=+(1.7±1.9±1.0){\%}, which is in agreement with the Standard Model prediction and provides an improvement on the world average. Moreover, we report the first measurement of the difference between ACP for charged and neutral decay modes, ΔACP=+(5.0±3.9±1.5){\%}. Using the value of ΔACP, we also provide 68{\%} and 90{\%} confidence intervals on the imaginary part of the ratio of the Wilson coefficients corresponding to the chromomagnetic dipole and the electromagnetic dipole transitions.
DOI
10.1103/PhysRevD.90.092001
WOS
WOS:000345173600001
Archivio
http://hdl.handle.net/11368/2836210
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84911950007
http://www.scopus.com/inward/record.url?eid=2-s2.0-84911950007&partnerID=40&md5=726f9838949179f59194806418541671
Diritti
metadata only access
Soggetti
  • Nuclear and High Ener...

Web of Science© citazioni
14
Data di acquisizione
Mar 18, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
Vedi dettagli
google-scholar
Get Involved!
  • Source Code
  • Documentation
  • Slack Channel
Make it your own

DSpace-CRIS can be extensively configured to meet your needs. Decide which information need to be collected and available with fine-grained security. Start updating the theme to match your nstitution's web identity.

Need professional help?

The original creators of DSpace-CRIS at 4Science can take your project to the next level, get in touch!

Realizzato con Software DSpace-CRIS - Estensione mantenuta e ottimizzata da 4Science

  • Impostazioni dei cookie
  • Informativa sulla privacy
  • Accordo con l'utente finale
  • Invia il tuo Feedback