Nonuniversality of indirect<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>asymmetries in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>D</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>π</mml:mi><mml:mi>π</mml:mi></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>K</mml:mi><mml:mi>K</mml:mi></mml:mrow></mml:math>decays

Dighe, Amol; Ghosh, Diptimoy; Kodrani, Bhavik P.

doi:10.1103/physrevd.89.096008

Cited by 5 publications

(3 citation statements)

References 53 publications

(53 reference statements)

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“…The D 0 − D0 mixing amplitude can be described by means of the dispersive (M 12 ) and the absorptive (Γ 12 ) parts as follow [15][16][17][18][19][20]…”

Section: − D0 Mixing Observablesmentioning

confidence: 99%

CP violation tests of alignment models at LHCII

Ghosh

Paradisi

Pérez

et al. 2016

J. High Energ. Phys.

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We analyse the low-energy phenomenology of alignment models both modelindependently and within supersymmetric (SUSY) scenarios focusing on their CP violation tests at LHCII. Assuming that New Physics (NP) contributes to K 0 −K 0 and D 0 −D 0 mixings only through non-renormalizable operators involving SU(2) L quark-doublets, we derive model-independent correlations among CP violating observables of the two systems. Due to universality of CP violation in ∆F = 1 processes the bound on CP violation in Kaon mixing generically leads to an upper bound on the size of CP violation in D mixing. Interestingly, this bound is similar in magnitude to the current sensitivity reached by the LHCb experiment which is starting now to probe the natural predictions of alignment models. Within SUSY, we perform an exact analytical computation of the full set of contributions for the D 0 −D 0 mixing amplitude. We point out that chargino effects are comparable and often dominant with respect to gluino contributions making their inclusion in phenomenological analyses essential. As a byproduct, we clarify the limit of applicability of the commonly used mass insertion approximation in scenarios with quasi-degenerate and split squarks.

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“…The D 0 − D0 mixing amplitude can be described by means of the dispersive (M 12 ) and the absorptive (Γ 12 ) parts as follow [15][16][17][18][19][20]…”

Section: − D0 Mixing Observablesmentioning

confidence: 99%

CP violation tests of alignment models at LHCII

Ghosh

Paradisi

Pérez

et al. 2016

J. High Energ. Phys.

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“…They do not allow for larger modifications of the decay width difference ∆Γ s of the B s -meson in the SM than 35% assuming single operator dominance. The interplay of several operators allows for larger effects [48].…”

Section: Global Analysismentioning

confidence: 99%

Theory status of b\rightarrow s l^+ l^- decays and their combined analysis

Bobeth¹

2012

Proceedings of the XIth International Conference on Heavy Quarks and Leptons — PoS(HQL 2012)

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“…In the literature, the study of the interference between direct CPV and mixing has been performed through the introduction of a non-universal weak phase defined as [28][29][30]. It is important to notice that this weak phase is irrelevant for the direct CPV as direct CPV is proportional to |A f | 2 − |Ā f | 2 .…”

Section: Introductionmentioning

confidence: 99%

New physics signature in $$D^0 (\bar{D}^0)\rightarrow f$$ effective width asymmetries

2019

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Violation of charge conjugation-parity (CP) symmetry plays a major rule in the dominance of matter in our universe. A kind of CP violation results from the asymmetry of the life time measured in M 0 andM 0 , here M is a heavy meson, decays to final states which is referred in the literature as A f . In this paper, we give an estimation of the). Recently a bound on A f has been obtained: (A f ) E x p. = (1.6 ± 1) × 10 −4 . This result motivates further studies on A f in beyond standard model physics. In the framework of two Higgs doublet model with generic Yukawa structure, we show that |A f | O(10 −7 )which is several orders of magnitude smaller than the current experimental value. Finally, in the framework of leftright symmetric models in which the mixing between the left and the right gauge bosons is allowed and the left-right symmetry is not manifest at unification scale, we find that A f can be as large as |A f | O(10 −5 ) which is one order of magnitude smaller than the experimentally measured value by LHCb collaborators.

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Nonuniversality of indirectCPasymmetries inD→ππ,KKdecays

Cited by 5 publications

References 53 publications

CP violation tests of alignment models at LHCII

CP violation tests of alignment models at LHCII

Theory status of b\rightarrow s l^+ l^- decays and their combined analysis

New physics signature in $$D^0 (\bar{D}^0)\rightarrow f$$ effective width asymmetries

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