Radiative B-decay as a test of CKM unitarity

Gautam Bhattacharyya; Gustavo C. Branco; Debajyoti Choudhury

doi:10.1016/0370-2693(94)90562-2

Radiative B-decay as a test of CKM unitarity

High Energy Physics - Phenomenology 2010-11-01 v1

Authors: Gautam Bhattacharyya , Gustavo C. Branco , Debajyoti Choudhury

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Abstract

We point out that $R \equiv Br(b\rightarrow d \gamma)/Br(b\rightarrow s \gamma)$ is a sensitive probe of possible violation of CKM unitarity. We compute $R$ in a minimal extension of the Standard Model containing an additional isosinglet charge ( $-1/3$ ) quark, which leads to a deviation from CKM unitarity.

Keywords

radiative B decay CKM unitarity b to d gamma b to s gamma isosinglet quark standard model extension

Cite

@article{arxiv.hep-ph/9406424,
  title  = {Radiative B-decay as a test of CKM unitarity},
  author = {Gautam Bhattacharyya and Gustavo C. Branco and Debajyoti Choudhury},
  journal= {arXiv preprint arXiv:hep-ph/9406424},
  year   = {2010}
}

Comments

11 pages (Latex) + 4 postscript figures (compressed, tared, uuencoded) included at the end of the paper - [please check before printing that the uncompressed fig2.ps and fig3.ps files do not contain blank lines in the beginning], CERN-TH.7294/94, MPI-PhT/94-32

Radiative B-decay as a test of CKM unitarity

Abstract

Keywords

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