Results 41 to 50 of about 29,222 (198)

Neutron Electric Dipole Moment Induced by the Strangeness Revisited [PDF]

Strong Coupling Gauge Theories in the LHC Perspective (SCGT12), 2013
We have revisited the calculation of the neutron electric dipole moment in the presence of the CP-violating operators up to dimension five based on the chiral perturbation theory. Especially, we focus on the contribution of strangeness content. In the calculation, we extract the nucleon matrix elements of scalar-type quark operators from the results of
Fuyuto, Kaori, Hisano, Junji, Nagata, Natsumi   +2 more
openaire   +3 more sources

Strong CP violation and the neutron electric dipole form factor

, 2005
We calculate the neutron electric dipole form factor induced by the CP violating theta-term of QCD, within a perturbative chiral quark model which includes pion and kaon clouds.
A. A. Belavin, A. Faessler, A. Manohar, A. Pich, C. Dib, D. A. Demir, E. Oset, E. P. Shabalin, G. A. Miller, G. Hooft ’t, J. A. McGovern, J. Erler, J. Kuckei, K. Fujikawa, K. Pumsa-ard, M. A. Morgan, M. M. Musakhanov, M. Pospelov, M. Pospelov, N. Fortson, P. G. Harris, R. Arnowitt, R. D. Peccei, R. J. Crewther, R. J. Crewther, R. Jackiw, R. Tegen, S. Abel, S. Aoki, S. Eidelman, S. G. Kovalenko, S. Khalil, S. Thomas, S. Weinberg, T. Gutsche, T. Gutsche, T. Ibrahim, T. T. Takahashi, V. Baluni, V. E. Lyubovitskij, V. M. Khatsimovsky, W. H. Hockings   +41 more
core   +2 more sources

Neutron Electric Dipole Moment in Two Higgs Doublet Model [PDF]

, 1994
We study the effect of the "chromo-electric" dipole moment on the electric dipole moment(EDM) of the neutron in the two Higgs doublet model. We systematically investigate the Weinberg's operator $O_{3g}=GG\t G$ and the operator $O_{qg}=\bar q\sigma\t Gq$,
Barr, Barr, Barr, Chang, Chang, Chemtob, Chemtob, De Rújula, Froggatt, Gunion, Gunion, Kobayashi, Luty, M. Matsuda, M. Tanimoto, Manohar, T. Hayashi, Weinberg, Weinberg, Y. Koide   +19 more
core   +6 more sources

A search for neutron to mirror-neutron oscillations using the nEDM apparatus at PSI

Physics Letters B, 2021
It has been proposed that there could be a mirror copy of the standard model particles, restoring the parity symmetry in the weak interaction on the global level. Oscillations between a neutral standard model particle, such as the neutron, and its mirror
C. Abel, N.J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, E. Chanel, P.-J. Chiu, C. Crawford, M. Daum, R.T. Dinani, S. Emmenegger, P. Flaux, L. Ferraris-Bouchez, W.C. Griffith, Z.D. Grujić, N. Hild, K. Kirch, H.-C. Koch, P.A. Koss, A. Kozela, J. Krempel, B. Lauss, T. Lefort, A. Leredde, P. Mohanmurthy, O. Naviliat-Cuncic, D. Pais, F.M. Piegsa, G. Pignol, M. Rawlik, D. Rebreyend, I. Rienäcker, D. Ries, S. Roccia, D. Rozpedzik, P. Schmidt-Wellenburg, N. Severijns, J. Thorne, A. Weis, E. Wursten, J. Zejma, G. Zsigmond   +42 more
doaj   +1 more source

Electric Dipole Moments and Polarizability in the Quark-Diquark Model of the Neutron

, 2010
For a bound state internal wave function respecting parity symmetry, it can be rigorously argued that the mean electric dipole moment must be strictly zero.
A. Widom, A. D. Martin, C. Clarke, J. Swain, O. Panella, P. Debye, R. Golub, V. Alfaro, Y. N. Srivastava   +8 more
core   +1 more source

Strong CP problem, electric dipole moment, and fate of the axion

SciPost Physics Proceedings, 2022
Three hard problems! In this talk I investigate the long-distance properties of quantum chromodynamics in the presence of a topological theta term. This is done on the lattice, using the gradient flow to isolate the long-distance modes in the functional ...
Gerrit Schierholz
doaj   +1 more source

The Electric Dipole Moment of the Nucleons in Holographic QCD

, 2007
We introduce the strong CP-violation in the framework of AdS/QCD model and calculate the electric dipole moments of nucleons as well as the CP-violating pion-nucleon coupling.
Budker ., C. Csáki, C. Csáki, D.K. Hong, Deog Ki Hong, E. Katz, G. 't Hooft, H. Hata, Ho-Ung Yee, Hyun-Chul Kim, J.E. Kim, M. Dine, M. Henneaux, R. Contino, R.D. Peccei, Sanjay Siwach, See for instance chapter 6 in H. Georgi, the review of \citeHo in Y. Kim, U. Gursoy, V. Baluni   +19 more
core   +1 more source

Loop-Induced CP Violation in the Gaugino and Higgsino Sectors of Supersymmetric Theories [PDF]

, 1999
We show that the gaugino and higgsino sectors of supersymmetric theories can naturally acquire observable CP violation through radiative effects which originate from large CP-violating trilinear couplings of the Higgs bosons to the third-generation ...
A. Ali, A. Ali, A. Pilaftsis, A. Pilaftsis, A. Pilaftsis, A. Pilaftsis, A.G. Cohen, Apostolos Pilaftsis, B. Grzadkowski, B. Grzadkowski, C.-S. Huang, D. Chang, D. Chang, D.A. Demir, D.A. Demir, D.V. Nanopoulos, E. Accomando, F. Borzumati, F. del Aguila, G. Dvali, G.F. Giudice, J. Dai, J. Dai, J. Ellis, J. Polchinski, K.S. Babu, M. Brhlik, M. Brhlik, M. Dugan, M. Laine, M. Laine, P. Binétruy, P. Nath, P. Osland, P.A. Grassi, P.G. Harris, R. Garisto, S. Baek, S. Pokorski, S. Weinberg, S.M. Barr, S.Y. Choi, S.Y. Choi, T. Falk, T. Han, T. Ibrahim, T. Ibrahim, T. Ibrahim, T. Ibrahim, T. Ibrahim, T. Ibrahim, T. Ibrahim, W. Buchmüller, Y. Kizukuri   +53 more
core   +3 more sources

Precision experiments with muons and neutrons

Comptes Rendus. Physique, 2020
The precision experiments with muons and neutrons are described. The topics selected cover the anomalies of the muon $g_{\mu }-2$ and the neutron lifetime, and searches for charged lepton flavour violation CLFV of ${\mu ^{-} \rightarrow e ...
Kuno, Yoshitaka, Pignol, Guillaume
doaj   +1 more source

How the minuscule can contribute to the big picture: the neutron electric dipole moment project at TRIUMF

, 2016
A permanent electric dipole moment (EDM) of a fundamental particle violates both parity (P) and time (T) reversal symmetry and combined charge and parity (CP) reversal symmetry if the combined reversal of charge, parity \textit{and} time (CPT) is ...
Altarev I., Altarev I., Ito T., Serebrov A. P., Smith J. H.   +4 more
core   +1 more source