Weak long distance contributions to the neutron and proton electric dipole moments

Johan Bijnens; Elisabetta Pallante

doi:10.1016/0370-2693(96)00982-3

Weak long distance contributions to the neutron and proton electric dipole moments

Johan Bijnens, Elisabetta Pallante

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Abstract

We evaluate the long distance weak contribution to the neutron and proton electric dipole moments using an effective Lagrangian framework. We estimate the coefficients needed by a factorization hypothesis and additional assumptions on Î³5 terms in the baryon lagrangian. We obtain |dne| â‰ˆ 5 Ã— 10-32 eÂ·cm and |dpe| â‰ˆ 4 Ã— 10-32 eÂ·cm. The former estimate is similar to the quark model estimates done previously.

Original language	English
Pages (from-to)	207-214
Number of pages	8
Journal	Physics Letters B
Volume	387
Issue number	1
DOIs	https://doi.org/10.1016/0370-2693(96)00982-3
Publication status	Published - 10-Oct-1996
Externally published	Yes

Keywords

CHIRAL PERTURBATION-THEORY
NONLEPTONIC DECAYS
STRANGE PARTICLES
CP-VIOLATION
RULE
MODEL

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Weak long distance contributions to the neutron and proton electric dipole moments Final publisher's version, 702 KBLicence: Unspecified

Cite this

@article{4b777417009f44ce8ca6dbc5993e3378,

title = "Weak long distance contributions to the neutron and proton electric dipole moments",

abstract = "We evaluate the long distance weak contribution to the neutron and proton electric dipole moments using an effective Lagrangian framework. We estimate the coefficients needed by a factorization hypothesis and additional assumptions on {\^I}³5 terms in the baryon lagrangian. We obtain |dne| {\^a}‰ˆ 5 {\~A}— 10-32 e{\^A}·cm and |dpe| {\^a}‰ˆ 4 {\~A}— 10-32 e{\^A}·cm. The former estimate is similar to the quark model estimates done previously.",

keywords = "CHIRAL PERTURBATION-THEORY, NONLEPTONIC DECAYS, STRANGE PARTICLES, CP-VIOLATION, RULE, MODEL",

author = "Johan Bijnens and Elisabetta Pallante",

note = "Relation: http://www.rug.nl/natuurkunde/onderzoek/instituten/ctn/index date_submitted:2008 Rights: University of Groningen. Centre for Theoretical Physics",

year = "1996",

month = oct,

day = "10",

doi = "10.1016/0370-2693(96)00982-3",

language = "English",

volume = "387",

pages = "207--214",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

number = "1",

}

TY - JOUR

T1 - Weak long distance contributions to the neutron and proton electric dipole moments

AU - Bijnens, Johan

AU - Pallante, Elisabetta

N1 - Relation: http://www.rug.nl/natuurkunde/onderzoek/instituten/ctn/index date_submitted:2008 Rights: University of Groningen. Centre for Theoretical Physics

PY - 1996/10/10

Y1 - 1996/10/10

N2 - We evaluate the long distance weak contribution to the neutron and proton electric dipole moments using an effective Lagrangian framework. We estimate the coefficients needed by a factorization hypothesis and additional assumptions on Î³5 terms in the baryon lagrangian. We obtain |dne| â‰ˆ 5 Ã— 10-32 eÂ·cm and |dpe| â‰ˆ 4 Ã— 10-32 eÂ·cm. The former estimate is similar to the quark model estimates done previously.

AB - We evaluate the long distance weak contribution to the neutron and proton electric dipole moments using an effective Lagrangian framework. We estimate the coefficients needed by a factorization hypothesis and additional assumptions on Î³5 terms in the baryon lagrangian. We obtain |dne| â‰ˆ 5 Ã— 10-32 eÂ·cm and |dpe| â‰ˆ 4 Ã— 10-32 eÂ·cm. The former estimate is similar to the quark model estimates done previously.

KW - CHIRAL PERTURBATION-THEORY

KW - NONLEPTONIC DECAYS

KW - STRANGE PARTICLES

KW - CP-VIOLATION

KW - RULE

KW - MODEL

U2 - 10.1016/0370-2693(96)00982-3

DO - 10.1016/0370-2693(96)00982-3

M3 - Article

VL - 387

SP - 207

EP - 214

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1

ER -