English

Desperately Seeking Non-Standard Phases via Direct CP Violation in $b\to sg^\ast$ Process

High Energy Physics - Phenomenology 2008-11-26 v1

Abstract

Attributing the recent CLEO discovery of Bη+XsB \to \eta' + X_s to originate (primarily) from the fragmentation of an off-shell gluon (gg^*) via bs+gb \to s + g^*, gg+ηg^* \to g + \eta', we emphasize that many such states (XgX_g) should materialize. Indeed the hadronic fragments (XgX_g) of gg^* states are closely related to those seen in ψγ(ϕ,ω)+Xg\psi \to \gamma (\phi, \omega) + X_g. A particular final state of considerable interest is Xg=K+KX_g=K^+K^-. Signals from such states in BB decays can be combined to provide a very sensitive search for CP violating phase(s) from non-standard physics. The method should work even if the contribution of these source(s) to the rates is rather small (10\sim10%) to the point that a comparison between theory and experiment may find it extremely difficult to reveal the presence of such a new physics.

Keywords

Cite

@article{arxiv.hep-ph/9706512,
  title  = {Desperately Seeking Non-Standard Phases via Direct CP Violation in $b\to sg^\ast$ Process},
  author = {David Atwood and Amarjit Soni},
  journal= {arXiv preprint arXiv:hep-ph/9706512},
  year   = {2008}
}

Comments

16 pages, 5 figures