Strong<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math>invariance, neutron electric dipole moment, and minimal left-right parity at LHC

Maiezza, Alessio; Nemevšek, Miha

doi:10.1103/physrevd.90.095002

Cited by 83 publications

(116 citation statements)

References 122 publications

(203 reference statements)

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“…In the case of P, from the study of the electric dipole moment of the neutron, the limit was raised to about 7 TeV [29], without taking into account the strong CP violation. Meanwhile new studies also improved the chiral perturbation results for this process [30,31] and recently [31] claimed a limit (which depends though on the ultraviolet completion of the theory) of about 20 TeV by studying carefully the strong CP.…”

Section: Introductionmentioning

confidence: 98%

Restoration of parity and the right-handed analog of the CKM matrix

Senjanović¹,

Tello²

2016

Phys. Rev. D

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In a recent Letter we determined analytically the right-handed quark mixing matrix in the minimal Left-Right symmetric theory with generalized Parity. We derived its explicit form as a series expansion in a small parameter that measures the departure from hermiticity of quark mass matrices. Here we analyze carefully the convergence of the series by including higher order terms and by comparing with numerical results. We apply our findings to some phenomenological applications such as the production and decays of the right-handed gauge boson WR, the neutrinoless double beta decay, the decays of the heavy scalar doublet, the strong CP parameter and the theoretical limits on the new mass scale from the K and B-meson physics. In particular, we demonstrate that the relevant coupling for the production of the WR gauge boson at hadronic colliders and for the neutrinoless double beta decay equals its left-handed counterpart, within a percent. We also demonstrate that the stability of the theoretical lower limit on the WR mass from the K-meson physics is due to a partial cancellation of the external phases of the right-handed mixing matrix.

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Section: Introductionmentioning

confidence: 98%

Restoration of parity and the right-handed analog of the CKM matrix

Senjanović¹,

Tello²

2016

Phys. Rev. D

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“…Once the W R mass is raised above 10 TeV, the situation improves and around 20 TeV, the theory is perfectly perturbative with the large strong coupling cut-off scale. And in the case of LR symmetry being parity, this would ensure that the strong CP parameter is naturally small [43].…”

Section: Discussionmentioning

confidence: 99%

Is left–right symmetry the key?

Senjanović

2017

Mod. Phys. Lett. A

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In collaboration with Jogesh Pati, Abdus Salam challenged the chiral gauge nature of the Standard Model by paving the road towards the Left-Right symmetric electro-weak theory. I describe here the logical and historical construction of this theory, by emphasising the pioneering and key role it played for neutrino mass. I show that it is a self-contained and predictive model with the Higgs origin of Majorana neutrino mass, in complete analogy with the SM situation regarding charged fermions.

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“…There is another possibility that the discrete left-right symmetry could be a parity symmetry, under which the strong CP phase is only determined by the quark mass matrices [50][51][52] and hence is a calculable value [53]. In this case, the minimal leftright symmetric model can solve the strong CP problem, depending on the choice of the two VEVs of the [SU(2)]-doublet Higgs scalar [46]. Alternatively, the left-right symmetric framework can offer a universal seesaw scenario [54][55][56][57][58][59][60][61], where some additional [SU(2)]-singlet fermions with heavy masses are introduced to construct the Yukawa couplings with the [SU(2)]-doublet fermions and Higgs.…”

Section: Jhep10(2017)016mentioning

confidence: 99%

“…Therefore, the right-handed neutrino mass matrix, which generally has a different structure from the left-handed neutrino mass matrix, should become an essential input for the leptogenesis. The Keung-Senjanović [48] production process of the right-handed neutrinos can allow one to measure their masses and mixing at the LHC [45][46][47] if the non-SM gauge bosons are light enough. This, however, is not allowed by a successful leptogenesis [49].…”

Section: Jhep10(2017)016mentioning

confidence: 99%

Spontaneous mirror left-right symmetry breaking for leptogenesis parametrized by Majorana neutrino mass matrix

2017

J. High Energ. Phys.

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We introduce a mirror copy of the ordinary fermions and Higgs scalars for embedding the SU(2) L × U(1) Y electroweak gauge symmetry into an SU(2) L × SU(2) R × U(1) B−L left-right gauge symmetry. We then show the spontaneous left-right symmetry breaking can automatically break the parity symmetry motivated by solving the strong CP problem. Through the SU(2) R gauge interactions, a mirror Majorana neutrino can decay into a mirror charged lepton and two mirror quarks. Consequently we can obtain a lepton asymmetry stored in the mirror charged leptons. The Yukawa couplings of the mirror and ordinary charged fermions to a dark matter scalar then can transfer the mirror lepton asymmetry to an ordinary lepton asymmetry which provides a solution to the cosmic baryon asymmetry in association with the SU(2) L sphaleron processes. In this scenario, the baryon asymmetry can be well described by the neutrino mass matrix up to an overall factor.

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StrongPinvariance, neutron electric dipole moment, and minimal left-right parity at LHC

Cited by 83 publications

References 122 publications

Restoration of parity and the right-handed analog of the CKM matrix

Restoration of parity and the right-handed analog of the CKM matrix

Is left–right symmetry the key?

Spontaneous mirror left-right symmetry breaking for leptogenesis parametrized by Majorana neutrino mass matrix

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