Neutron electric dipole moment, T-odd nuclear forces, and nature of CP-violation

Khatsymovsky, V. M.; Khriplovich, I.B.; Yelkhovsky, Alexander

doi:10.1016/s0003-4916(88)80015-0

Cited by 95 publications

(99 citation statements)

References 19 publications

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“…Within the context of leftright symmetric models, this effective interaction arises from CP-violating W -W ′ mixing and has been studied previously [49,50,51,52]. We show in Fig.…”

Section: B Electric Dipole Momentsmentioning

confidence: 87%

CPviolation in beta decay and electric dipole moments

Tulin

2012

Phys. Rev. D

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The T-odd correlation coefficient D in nuclear β-decay probes CP violation in many theories beyond the Standard Model. We provide an analysis for how large D can be in light of constraints from electric dipole moment (EDM) searches. We argue that the neutron EDM d n currently provides the strongest constraint on D, which is 10 − 10 3 times stronger than current direct limits on D (depending on the model). In particular, contributions to D in leptoquark models (previously regarded as "EDM safe") are more constrained than previously thought. Bounds on D can be weakened only by fine-tuned cancellations or if theoretical uncertainties are larger than estimated in d n . We also study implications for D from mercury and deuteron EDMs.

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“…Within the context of leftright symmetric models, this effective interaction arises from CP-violating W -W ′ mixing and has been studied previously [49,50,51,52]. We show in Fig.…”

Section: B Electric Dipole Momentsmentioning

confidence: 87%

CPviolation in beta decay and electric dipole moments

Tulin

2012

Phys. Rev. D

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“…In particular, direct QCD sum rules calculations [13,14] give d n ∼ 20 times smaller than the estimates based on the chiral loop approach [15,16]. Thus, we believe that an independent calculation of d CEDM…”

Section: Introductionmentioning

confidence: 87%

Hadron electric dipole moments from CP-odd operators of dimension five via QCD sum rules: the vector meson

Pospelov

Ritz

2000

Physics Letters B

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We present a complete analysis of the electric dipole moment (EDM) of the ρ-meson induced by CP violating operators of dimension 4 and 5 within the QCD sum rules approach. The set of CP-odd operators includes the theta term and the electric and chromoelectric dipole moments of the three light quarks. We find that the ρ-meson EDM induced purely by the EDMs of quarks is smaller, but still in reasonable agreement, with the predictions of a naive constituent quark model. However, the chromoelectric dipole moments, including that of the strange quark, give comparable and sometimes larger contributions. We also consider the effect on the hadronic EDM of the existence of Peccei-Quinn symmetry. When this symmetry is active, chromoelectric dipole moments induce a linear term in the axion potential which leads to a numerically important vacuum contribution to the hadronic EDM. * pospelov@mnhepw.hep.umn.edu † a.ritz@damtp.cam.ac.uk ‡ Present address 1

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“…This calculation was done in Refs. [15,16] by means of the same technique that we exploit here and we simply quote this result:…”

Section: Cp-odd Interaction Of the Axion With Mattermentioning

confidence: 99%

“…Our aim is to improve the accuracy of the predictions based on NDA and connect this vertex with CP-odd pion-nucleon coupling constant, strongly limited from the experiments searching for EDMs of diamagnetic atoms [14] (For the detailed analysis of this coupling, see Refs. [15,16]. )…”

Section: Introductionmentioning

confidence: 99%

CP-odd interaction of axion with matter

Pospelov

1998

Phys. Rev. D

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In the world with axion the precise measurement of gravitational force and check of the equivalence principle at small distances, λ ∼ 1cm and less, could provide an additional test of CP symmetry. Using the chiral approach, we connect the strength of CP-odd axion-nucleon vertex with CP-odd pion-nucleon coupling for color electric dipole moments of quarks as a low energy source of CP violation. Strong limits on CP-odd coupling g πN N coming from atomic electric dipole moments show that gravitational experiments are six orders of magnitude away from the sensitivity level needed to detect axion-mediated forces.

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Neutron electric dipole moment, T-odd nuclear forces, and nature of CP-violation

Cited by 95 publications

References 19 publications

CPviolation in beta decay and electric dipole moments

CPviolation in beta decay and electric dipole moments

Hadron electric dipole moments from CP-odd operators of dimension five via QCD sum rules: the vector meson

CP-odd interaction of axion with matter

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