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The European Physical Journal C

, Volume 58, Issue 2, pp 251–259 | Cite as

B K 1 *− (1270)(→ρ 0 K ) + in LEET

  • S. Rai Choudhury
  • A. S. CornellEmail author
  • Naveen Gaur
Regular Article - Theoretical Physics

Abstract

Flavor changing neutral current (FCNC) decays of the B-meson are a very useful tool for studying possible physics scenarios beyond the standard model (SM), where of the many FCNC modes radiative, purely leptonic and semi-leptonic decays of the B-meson are relatively clean tests. Within this context, the BELLE collaboration has measured the process BK * γ and also searched for the BK 1(1270)γ process. Theoretical analyses of these processes are yielding similar values of the relevant form factors. In this work we have used this upper bound in studying the angular correlations for the related semi-leptonic decay mode B K 1 (1270)(→ρ 0 K ) + , where we have used the form factors that have already been estimated for the BK 1(1270)γ mode. Note that the additional form factors that are required were calculated using large energy effective theory (LEET).

PACS

13.20.He 

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  • S. Rai Choudhury
    • 1
  • A. S. Cornell
    • 2
    Email author
  • Naveen Gaur
    • 3
  1. 1.Center for Theoretical PhysicsJamia Millia UniversityDelhiIndia
  2. 2.Institut de Physique NucléaireUniversité de Lyon 1Villeurbanne CedexFrance
  3. 3.Theory DivisionKEKIbarakiJapan

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