title

بررسی واپاشی −B→πℓ+ℓ در مدل استاندارد با نسل چهارم

بشیری, ولی and زینالی, کاظم (1386) بررسی واپاشی −B→πℓ+ℓ در مدل استاندارد با نسل چهارم. Journal of High Energy Physics-JHEP ــ (12). pp. 1-16. شاپا 1029-8479

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Official URL: http://www.iop.org/EJ/abstract/1126-6708/2007/12/0...


Title

Analysis of the B→πℓ+ℓ− decay in the standard model with fourth generation

English Abstract

Abstract: We investigate the influence of the fourth generation quarks on the branching ratio and the CP-asymmetry in B → πℓ+ℓ− decay. Taking the |Vt′dVt′b| ∼ 0.001 with phase about 10◦, which is consistent with the sin2φ1 of the CKM and the Bd mixing parameter ¢mBd , we obtain that for both (μ, τ ) channels the branching ratio, the magnitude of CP- asymmetry and lepton polarization depict strong dependency on the 4th generation quarks mass and mixing parameters. These results can serve as a good tool to search for new physics effects, precisely, to search for the fourth generation quarks(t′, b′) via its indirect manifestations in loop diagrams.

Item Type:Article
زبان سند : انگلیسی
نویسنده مسئول :ولی بشیری
نویسنده :کاظم زینالی
Additional Information:Impact Factor: (2007)5.659 Indexed:1- ISI (SciSearch®, Science Citation Index®, Materials Science Citation Index®, Journal Citation Reports/Science Edition, ISI Alerting Services) 2- Scopus,Chemical Abstracts Service 3-Inspec, INIS (International Nuclear Information System) , MathSciNet, NASA Astrophysics Data System,SPIRES, VINITI Abstracts Journal (Referativnyi Zhurnal), Zentralblatt MATH
کلیدواژه ها (انگلیسی): Beyond Standard Model ; B-Physics
Subjects:WN Radiology . Diagnostic Imaging
Divisions:Faculty of Medicine > Department of Basic Sciences > Department of Medical Physics
ID Code:1165
Deposited By: MS Soghra Golmaghani
Deposited On:27 Dec 1388 09:23
Last Modified:07 Sep 1395 05:55

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