skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Experimental constraint on quark electric dipole moments

Abstract

The electric dipole moments (EDMs) of nucleons are sensitive probes of additional C P violation sources beyond the standard model to account for the baryon number asymmetry of the universe. As a fundamental quantity of the nucleon structure, tensor charge is also a bridge that relates nucleon EDMs to quark EDMs. With a combination of nucleon EDM measurements and tensor charge extractions, we investigate the experimental constraint on quark EDMs, and its sensitivity to C P violation sources from new physics beyond the electroweak scale. We obtain the current limits on quark EDMs as 1.27 × 10 -24 e ∙ cm for the up quark and 1.17 × 10 -24 $e$ ∙ cm for the down quark at the scale of 4 GeV 2 . We also study the impact of future nucleon EDM and tensor charge measurements, and show that upcoming new experiments will improve the constraint on quark EDMs by about 3 orders of magnitude leading to a much more sensitive probe of new physics models.

Authors:
; ;
Publication Date:
Research Org.:
Duke Univ., Durham, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1433459
Alternate Identifier(s):
OSTI ID: 1498964
Grant/Contract Number:  
FG02-03ER41231
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Liu, Tianbo, Zhao, Zhiwen, and Gao, Haiyan. Experimental constraint on quark electric dipole moments. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.074018.
Liu, Tianbo, Zhao, Zhiwen, & Gao, Haiyan. Experimental constraint on quark electric dipole moments. United States. doi:10.1103/PhysRevD.97.074018.
Liu, Tianbo, Zhao, Zhiwen, and Gao, Haiyan. Tue . "Experimental constraint on quark electric dipole moments". United States. doi:10.1103/PhysRevD.97.074018.
@article{osti_1433459,
title = {Experimental constraint on quark electric dipole moments},
author = {Liu, Tianbo and Zhao, Zhiwen and Gao, Haiyan},
abstractNote = {The electric dipole moments (EDMs) of nucleons are sensitive probes of additional C P violation sources beyond the standard model to account for the baryon number asymmetry of the universe. As a fundamental quantity of the nucleon structure, tensor charge is also a bridge that relates nucleon EDMs to quark EDMs. With a combination of nucleon EDM measurements and tensor charge extractions, we investigate the experimental constraint on quark EDMs, and its sensitivity to C P violation sources from new physics beyond the electroweak scale. We obtain the current limits on quark EDMs as 1.27 × 10-24 e ∙ cm for the up quark and 1.17 × 10-24 $e$ ∙ cm for the down quark at the scale of 4 GeV2 . We also study the impact of future nucleon EDM and tensor charge measurements, and show that upcoming new experiments will improve the constraint on quark EDMs by about 3 orders of magnitude leading to a much more sensitive probe of new physics models.},
doi = {10.1103/PhysRevD.97.074018},
journal = {Physical Review D},
number = 7,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.97.074018

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1. FIG. 1. : Tensor charge results. The left panel shows the values of u and d quark tensor charges, and the right panel shows the values of the isovector tensor charge. The round (green) points are from Dyson-Schwinger equation calculations [31,44], the square (blue) points are from lattice QCD calculationsmore » [45–50], the triangle (magenta) points are from model calculations [34–43], the filled diamond (black) points are phenomenological extractions from data [51–55], and the hollow diamond (red) points are the projection of JLab-12 GeV SoLID experiments based on the most recent global analysis [52]. The results quoted from the references are evaluated at different scales as explained in the text.« less

Save / Share:

Works referenced in this record:

First Glances at the Transversity Parton Distribution through Dihadron Fragmentation Functions
journal, June 2011


Extraction of quark transversity distribution and Collins fragmentation functions with QCD evolution
journal, January 2016


Nucleon isovector structure functions in ( 2 + 1 )-flavor QCD with domain wall fermions
journal, July 2010


Review of Particle Physics
journal, October 2016


Quark helicity flip generalized parton distributions from two-flavor lattice QCD
journal, October 2005


Fully self-consistent calculations of nuclear Schiff moments
journal, July 2010


Implications of the strange spin of the nucleon for the neutron electric dipole moment in supersymmetric theories
journal, June 1996


Simultaneous extraction of transversity and Collins functions from new semi-inclusive deep inelastic scattering and e + e data
journal, May 2013


Axial, scalar, and tensor charges of the nucleon from 2 + 1 + 1 -flavor Lattice QCD
journal, September 2016


Nucleon isovector couplings from N f = 2 lattice QCD
journal, March 2015


Proof of the TCP theorem
journal, July 1957


Observations of the Failure of Conservation of Parity and Charge Conjugation in Meson Decays: the Magnetic Moment of the Free Muon
journal, February 1957

  • Garwin, Richard L.; Lederman, Leon M.; Weinrich, Marcel
  • Physical Review, Vol. 105, Issue 4
  • DOI: 10.1103/PhysRev.105.1415

Proof of the TCP Theorem
journal, April 2000


Experimental Test of Parity Conservation in Beta Decay
journal, February 1957


What is the value of the neutron electric dipole moment in the Kobayashi-Maskawa model?
journal, March 1982


Erratum: Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass [Phys. Rev. D 92 , 114513 (2015)]
journal, February 2016


Reduced Limit on the Permanent Electric Dipole Moment of Hg 199
journal, April 2016


Chiral-odd generalized parton distributions in constituent quark models
journal, November 2005


Melosh rotation and the nucleon tensor charge
journal, September 1997


C P -Violation in the Renormalizable Theory of Weak Interaction
journal, February 1973

  • Kobayashi, Makoto; Maskawa, Toshihide
  • Progress of Theoretical Physics, Vol. 49, Issue 2
  • DOI: 10.1143/PTP.49.652

Transverse polarisation of quarks in hadrons
journal, March 2002


Revised experimental upper limit on the electric dipole moment of the neutron
journal, November 2015


Neutron electric-dipole moment, ultracold neutrons and polarized 3He
journal, February 1994


Transversely polarized parton densities, their evolution and their measurement
journal, December 1990

  • Artru, X.; Mekhfi, M.
  • Zeitschrift für Physik C Particles and Fields, Vol. 45, Issue 4
  • DOI: 10.1007/BF01556280

Tensor charges of the nucleon in the SU(3) chiral quark soliton model
journal, October 1996


Nucleon tensor charges and electric dipole moments
journal, April 2015


Higgs-Higgsino-gaugino induced two loop electric dipole moments
journal, October 2008


Observation of Large CP Violation in the Neutral B Meson System
journal, August 2001


Observation of CP Violation in the B 0 Meson System
journal, August 2001


Schiff Moment of the Mercury Nucleus and the Proton Dipole Moment
journal, November 2003


CP violation induced by penguin diagrams and the neutron electric dipole moment
journal, February 1982


Beyond-Standard-Model Tensor Interaction and Hadron Phenomenology
journal, October 2015


Neutron Electric Dipole Moment and Tensor Charges from Lattice QCD
journal, November 2015


Supersymmetric unification without low energy supersymmetry and signatures for fine-tuning at the LHC
journal, June 2005


Electric dipole moments in split supersymmetry
journal, March 2006


Improved extraction of valence transversity distributions from inclusive dihadron production
journal, May 2015

  • Radici, Marco; Courtoy, A.; Bacchetta, Alessandro
  • Journal of High Energy Physics, Vol. 2015, Issue 5
  • DOI: 10.1007/JHEP05(2015)123

Contact-interaction Faddeev equation and, inter alia , proton tensor charges
journal, December 2015


First Observation of C P Violation in the Decays of B s 0 Mesons
journal, May 2013


Signets of CP violation
journal, July 1991


Quark tensor charge and electric dipole moment within the Schwinger-Dyson formalism
journal, October 2013


Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
journal, December 2015


Violation of CP in variance, C asymmetry, and baryon asymmetry of the universe
journal, May 1991


New sum rules for nucleon tensor charges
journal, October 1998


Question of Parity Conservation in Weak Interactions
journal, October 1956


A confinement model calculation of h1(x)
journal, January 1997


Neutron Electric Dipole Moment in the Standard Model: Complete Three-Loop Calculation of the Valence Quark Contributions
journal, June 1997


A storage ring experiment to detect a proton electric dipole moment
journal, November 2016

  • Anastassopoulos, V.; Andrianov, S.; Baartman, R.
  • Review of Scientific Instruments, Vol. 87, Issue 11
  • DOI: 10.1063/1.4967465

Evidence for the 2 π Decay of the K 2 0 Meson
journal, July 1964


QCD sum rule calculation for the tensor charge of the nucleon
journal, December 1996


Electric dipole moments as probes of new physics
journal, July 2005


Dimension-six terms in the Standard Model Lagrangian
journal, October 2010

  • Grzadkowski, B.; Iskrzyński, M.; Misiak, M.
  • Journal of High Energy Physics, Vol. 2010, Issue 10
  • DOI: 10.1007/JHEP10(2010)085

The quark spin distributions of the nucleon
journal, November 1998


Flavor-Spin Symmetry Estimate of the Nucleon Tensor Charge
journal, November 2001


Spin and Unitary Spin Independence of Strong Interactions
journal, August 1964


Nucleon scalar and tensor charges from lattice QCD with light Wilson quarks
journal, December 2012


Experimental Limit to the Electric Dipole Moment of the Neutron
journal, October 1957


Transversity quark distributions in a covariant quark–diquark model
journal, January 2008


On the Possibility of Electric Dipole Moments for Elementary Particles and Nuclei
journal, June 1950


Transversity distributions in the nucleon in the large- N c limit
journal, July 2001


Unveiling the nucleon tensor charge at Jefferson Lab: A study of the SoLID case
journal, April 2017


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.