Low energy probes of CP violation in a flavor blind MSSM

Altmannshofer, Wolfgang; Buras, Andrzej J.; Paradisi, Paride

doi:10.1016/j.physletb.2008.09.057

Cited by 82 publications

(81 citation statements)

References 43 publications

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“…In the same article, it is also pointed out that even the flavour blind MSSM (FBMSSM) analyzed in [420] can account for large effects in various B physics observables. Of particular interest in this case are CP violating observables like A b→sγ CP and S φK S which, due to the minimal flavour structure of the model, are highly correlated with electric dipole moments (EDMs).…”

Section: Model Dependent Analysis: Interplay Among Different Type Of mentioning

confidence: 99%

SuperB Progress Report for Physics

O’Leary¹,

Aachen²,

Matias³

et al. 2012

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SuperB is a high luminosity e + e − collider that will be able to indirectly probe new physics at energy scales far beyond the reach of any man made accelerator planned or in existence. Just as detailed understanding of the Standard Model of particle physics was developed from stringent constraints imposed by flavour changing processes between quarks, the detailed structure of any new physics is severely constrained by flavour processes. In order to elucidate this structure it is necessary to perform a number of complementary studies of a set of golden channels. With these measurements in hand, the pattern of deviations from the Standard Model behavior can be used as a test of the structure of new physics. If new physics is found at the LHC, then the many golden measurements from SuperB will help decode the subtle nature of the new physics. However if no new particles are found at the LHC, SuperB will be able to search for new physics at energy scales up to 10 − 100 TeV. In either scenario, flavour physics measurements that can be made at SuperB play a pivotal role in understanding the nature of physics beyond the Standard Model. Examples for using the interplay between measurements to discriminate New Physics models are discussed in this document.SuperB is a Super Flavour Factory, in addition to studying large samples of B u,d,s , D and τ decays, SuperB has a broad physics programme that includes spectroscopy both in terms of the Standard Model and exotica, and precision measurements of sin 2 θ W . In addition to performing CP violation measurements at the Υ (4S) and φ(3770), SuperB will test CP T in these systems, and lepton universality in a number of different processes. The multitude of rare decay measurements possible at SuperB can be used to constrain scenarios of physics beyond the Standard Model. In terms of other precision tests of the Standard Model, this experiment will be able to perform precision over-constraints of the unitarity triangle through multiple measurements of all angles and sides.

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Section: Model Dependent Analysis: Interplay Among Different Type Of mentioning

confidence: 99%

SuperB Progress Report for Physics

O’Leary¹,

Aachen²,

Matias³

et al. 2012

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“…The minimal SUSY extension of the SM (the MSSM) already contains many possible CP-violating phases, even in its minimally flavour-violating (MFV) version. The maximally CP-violating MFV version of the MSSM, the MCPMFV model ( [3]; for related approaches, see [4][5][6][7][8][9]), has six CP-violating phases, to which may be added the QCD vacuum phase θ QCD . These phases are tightly constrained by the present experimental upper limits on the EDMs of 205 Tl, the neutron and 199 Hg.…”

Section: Introductionmentioning

confidence: 99%

Maximal electric dipole moments of nuclei with enhanced Schiff moments

Ellis

Lee

Pilaftsis

2011

J. High Energ. Phys.

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Abstract:The electric dipole moments (EDMs) of heavy nuclei, such as 199 Hg, 225 Ra and 211 Rn, can be enhanced by the Schiff moments induced by the presence of nearby parity-doublet states. Working within the framework of the maximally CP-violating and minimally flavour-violating (MCPMFV) version of the MSSM, we discuss the maximal values that such EDMs might attain, given the existing experimental constraints on the Thallium, neutron and Mercury EDMs. The maximal EDM values of the heavy nuclei are obtained with the help of a differential-geometrical approach proposed recently that enables the maxima of new CP-violating observables to be calculated exactly in the linear approximation. In the case of 225 Ra, we find that its EDM may be as large as 6 to 50 × 10 −27 e · cm.

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“…I warmly thank the other authors of [3], [12] and [15] for the very pleasant collaborations. This work has been supported by the German Bundesministerium für Bildung und Forschung under contract 05HT6WOA and the Graduiertenkolleg GRK 1054 of DFG.…”

Section: Acknowledgmentsmentioning

confidence: 96%

“…In particular, in [3] we assumed flavor universal squark masses, flavor diagonal but hierarchical trilinear couplings, but allowed the trilinear couplings to be complex. 1 We find that in this framework non-standard effects in CP violating b → s observables arise dominantly through the ∆F = 1 magnetic and chromomagnetic dipole operators.…”

Section: A Flavor Blind Mssm With Cp Violating Phasesmentioning

confidence: 99%

Phenomenology of CP Violation in a Flavor Blind MSSM and Beyond

Altmannshofer¹

2010

AIP Conference Proceedings

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Abstract.We present an analysis of low energy CP violating observables in the Minimal Supersymmetric Standard Model (MSSM). We focus on the predictions of CP violation in b → s transitions in the framework of a flavor blind MSSM, where the CKM matrix remains the only source of flavor violation, but additional CP violating phases are introduced in the soft SUSY breaking sector. We find large and strongly correlated effects in ∆F = 0 observables like the electric dipole moments (EDMs) of the electron and the neutron, as well as in ∆F = 1 observables like the time dependent CP asymmetries in B → φ K s and B → η ′ K s , the direct CP asymmetry in b → sγ and in several CP asymmetries in B → K * µ + µ − . On the other hand, observables that are only sensitive to CP violation in ∆F = 2 transitions, in particular the B s mixing phase, are found to be SM like in this framework. We stress that only in presence of additional sources of flavor violation, sizeable New Physics effects to CP violation in meson mixing can occur. i) the measured amount of CP violation in B d mixing (S ψK S ) seems insufficient to explain CP violation in K mixing (ε K ); ii) the time-dependent CP asymmetries in the loop induced decays B → φ K S and B → η ′ K S (S φ K S and S η ′ K S ) are measured to be considerably smaller than S ψK S ; iii) recent analyses find a B s mixing phase much larger than the tiny SM prediction.Taking these tensions seriously, a natural way to address them is to go beyond the SM and to introduce new CP violating phases. PHENOMENOLOGY OF CP VIOLATION IN THE MSSMThe MSSM contains many free parameters that can provide additional sources of CP violation. Once (some of) these parameters are assumed to be complex, in general several CP violating processes will receive NP contributions simultaneously. In the

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Low energy probes of CP violation in a flavor blind MSSM

Cited by 82 publications

References 43 publications

SuperB Progress Report for Physics

SuperB Progress Report for Physics

Maximal electric dipole moments of nuclei with enhanced Schiff moments

Phenomenology of CP Violation in a Flavor Blind MSSM and Beyond

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