Probing new physics through B mixing: status, benchmarks and prospects

Ball, P.; Fleischer, R.

doi:10.1140/epjc/s10052-006-0034-4

Probing new physics through B mixing: status, benchmarks and prospects

Ball, P.; Fleischer, R.

Authors

P. Ball

R. Fleischer

Abstract

As is well known, B0 d,s–B̄0 d,s mixing offers a profound probe into the effects of physics beyond the standard model. The data obtained at the e+e- B factories have already provided valuable insights into the Bd-meson system, and very recently also the B0 s–B̄0 s oscillation frequency ΔMs has been measured at the Tevatron. We give a critical discussion of the interpretation of these data in terms of model-independent new-physics parameters. We address in particular the impact of the uncertainties of the relevant input parameters, set benchmarks for their accuracies as required by future precision measurements at the LHC, and explore the prospects for new CP-violating effects in the Bs system. To complement our model-independent analysis, we also discuss the constraints imposed by the CDF measurement of ΔMs on popular models of new physics, namely scenarios with an extra Z’ boson and supersymmetry. We find that the new data still leave sizeable room for new-physics contributions to B0 s–B̄0 s mixing, which could be detected at the LHC.

Citation

Ball, P., & Fleischer, R. (2006). Probing new physics through B mixing: status, benchmarks and prospects. The European Physical Journal C, C48, 413-426. https://doi.org/10.1140/epjc/s10052-006-0034-4

Journal Article Type	Article
Publication Date	2006-10
Deposit Date	May 8, 2008
Publicly Available Date	May 8, 2008
Journal	European Physical Journal C: Particles and Fields
Print ISSN	1434-6044
Electronic ISSN	1434-6052
Publisher	SpringerOpen
Peer Reviewed	Peer Reviewed
Volume	C48
Pages	413-426
DOI	https://doi.org/10.1140/epjc/s10052-006-0034-4