2012
DOI: 10.1007/jhep03(2012)024
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ΔF = 2 observables and B → X q γ decays in the left-right model: Higgs particles striking back

Abstract: We present a complete study of ∆S = 2 and ∆B = 2 processes in the leftright model (LRM) based on the weak gauge group SU (2) L × SU (2) R × U (1) B−L . This includes ε K , ∆M K , ∆M q , A q SL , ∆Γ q with q = d, s and the mixing induced CP asymmetries S ψK S and S ψφ . Compared to the Standard Model (SM) these observables are affected by tree level contributions from heavy neutral Higgs particles (H 0 ) as well as new box diagrams with W R gauge boson and charged Higgs (H ± ) exchanges. We also analyse the B →… Show more

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Cited by 87 publications
(92 citation statements)
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References 213 publications
(523 reference statements)
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“…Flavor-changing Higgs contributions are suppressed due to present constraint requiring a large mass [12,17,56] and multiple CKM insertions. The main effect is then due to chirality-flipping diagrams either via LR mixing or two loop W L − W R exchange.…”
Section: B Quantum Stabilitymentioning
confidence: 99%
“…Flavor-changing Higgs contributions are suppressed due to present constraint requiring a large mass [12,17,56] and multiple CKM insertions. The main effect is then due to chirality-flipping diagrams either via LR mixing or two loop W L − W R exchange.…”
Section: B Quantum Stabilitymentioning
confidence: 99%
“…In addition, the theoretical calculation of BSM contributions to mixing and the experimental measurement of B 0 mixing parameters can help in constraining BSM parameters and understanding new physics [6]. Several recent studies have addressed that task [3][4][5][6][7][17][18][19][20][21][22][23][24], finding that one of the main limitations to further constraining the parameter space in BSM theories is the error associated with the theoretical calculation of the nonperturbative inputs.…”
mentioning
confidence: 99%
“…Consequently the largest deviations from the SM predictions are to be expected in kaon physics, while the effects in rare B decays are generally smaller. Such a pattern of NP effects can indeed be found e. g. in the Littlest Higgs model with T-parity (LHT) [6,7,8], in the custodially protected Randall-Sundrum model (RSc) [9,10,11] or in a general left-right model (LR) [12]. Therefore even with the SM-like measurements of the B s mixing phase and the branching ratio for B s → µ + µ − at LHCb, large NP signatures can still be hoped for in rare kaon decays, such as the K → πνν system or the K L → π 0 + − decays.…”
Section: Introductionmentioning
confidence: 89%