Chargino contributions to   /  in the left–right supersymmetric model

Frank, Mariana; Nie, Shuquan

doi:10.1088/0954-3899/30/2/015

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…For realistic, not too low SUSY mass parameters corresponding bounds, e.g. [53], are not stronger than those from D − D mixing. We further checked that |δ 75, 5.46], where the lower limit is for x 10 and the upper limit for x 0.01.…”

Section: Susymentioning

confidence: 96%

Rare radiative charm decays within the standard model and beyond

Boer

Hiller

2017

J. High Energ. Phys.

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We present standard model (SM) estimates for exclusive c → uγ processes in heavy quark and hybrid frameworks. Measured branching ratios B(D 0 → (φ,K * 0 )γ) are at or somewhat exceeding the upper range of the SM and suggest slow convergence of the 1/m D , α s -expansion. Model-independent constraints on |∆C| = |∆U | = 1 dipole operators from B(D 0 → ρ 0 γ) data are obtained. Predictions and implications for leptoquark models are worked out. While branching ratios are SM-like CP asymmetries 10% can be induced. In SUSY deviations from the SM can be even larger with CP asymmetries of O(0.1). If Λ cbaryons are produced polarized, such as at the Z-pole, an angular asymmetry in Λ c → pγ decays can be studied that is sensitive to chirality-flipped contributions.

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Section: Susymentioning

confidence: 96%

Rare radiative charm decays within the standard model and beyond

Boer

Hiller

2017

J. High Energ. Phys.

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“…The slit pattern on the chopper resembled a one dimensional Fresnel zone plate, so the modulation frequency changed quadratically with the time distance from the 'optical time axis'. Theoretical work on these subjects [11] and also on time interferometry [12] has been published. Closely related phenomena, like diffraction from vibrating surfaces [13], diffraction from time-dependent slits [14] and interferences induced by time-dependent B-fields [15] have been observed as well.…”

Section: Introductionmentioning

confidence: 99%

Time lens for high-resolution neutron time-of-flight spectrometers

et al. 2005

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We examine in analytic and numeric ways the imaging effects of temporal neutron lenses created by traveling magnetic fields. For fields of parabolic shape we derive the imaging equations, investigate the time-magnification, the evolution of the phase space element, the gain factor and the effect of finite beam size. The main aberration effects are calculated numerically. The system is technologically feasible and should convert neutron time of flight instruments from pinhole-to imaging configuration in time, thus enhancing intensity and/or time resolution. New fields of application for high resolution spectrometry may be opened.

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Solving the supersymmetricCPproblem with flavor breakingFterms

Díaz-Cruz¹,

Ferrandis

2005

Phys. Rev. D

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Supersymmetric flavor models for the radiative generation of fermion masses offer an alternative way to solve the SUSY-CP problem. We assume that the supersymmetric theory is flavor and CP conserving. CP violating phases are associated to the vacuum expectation values of flavor violating susy-breaking fields. As a consequence, phases appear at tree level only in the soft supersymmetry breaking matrices. Using a U (2) flavor model as an example we show that it is possible to generate radiatively the first and second generation of quark masses and mixings as well as the CKM CP phase. The one-loop supersymmetric contributions to EDMs are automatically zero since all the relevant parameters in the lagrangian are flavor conserving and as a consequence real. The size of the flavor and CP mixing in the susy breaking sector is mostly determined by the fermion mass ratios and CKM elements. We calculate the contributions to ǫ, ǫ ′ and to the CP asymmetries in the B decays to ψKs, φKs, η ′ Ks and Xsγ. We analyze a case study with maximal predictivity in the fermion sector. For this worst case scenario the measurements of ∆mK,∆mB and ǫ constrain the model requiring extremely heavy squark spectra.

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Chargino contributions to / in the left–right supersymmetric model

Cited by 4 publications

References 33 publications

Rare radiative charm decays within the standard model and beyond

Rare radiative charm decays within the standard model and beyond

Time lens for high-resolution neutron time-of-flight spectrometers

Solving the supersymmetricCPproblem with flavor breakingFterms

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