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We show that the strong CP problem can, in principle, be solved dynamically by adding extra-dimensions with compact topology. To this aim we consider a toy model for QCD, which contains a vacuum angle and a strong CP like problem. We…

高能物理 - 理论 · 物理学 2011-08-04 F. L. Bezrukov , Y. Burnier

In the context of the supersymmetrized seesaw mechanism embedded in the Minimal Supersymmetric Standard Model (MSSM), complex neutrino Yukawa couplings can induce Electric Dipole Moments (EDMs) for the charged leptons, providing an…

高能物理 - 唯象学 · 物理学 2014-11-18 D. Demir , Y. Farzan

The Standard Model cannot explain the dominance of matter over anti-matter in our universe. This imbalance indicates undiscovered physics that violates combined CP symmetry. Many extensions to the Standard Model seek to explain the…

We discuss electric dipole moments (EDMs) in the framework of CP-violating natural supersymmetry (SUSY). Recent experimental results have significantly tightened constraints on the EDMs of electrons and of mercury, and substantial further…

高能物理 - 唯象学 · 物理学 2017-09-13 Yuichiro Nakai , Matthew Reece

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) with explicit CP violation offers a promising framework for explaining the observed baryon asymmetry while remaining consistent with stringent electric dipole moment (EDM) bounds. In…

高能物理 - 唯象学 · 物理学 2025-09-09 Kaifei Ning , Michael Ramsey-Musolf

Searches for CP violating effects in atoms and molecules provide important constrains on competing extensions to the standard model of elementary particles. In particular, CP violation in an atom leads to the CP-odd (T,P-odd) polarizability…

高能物理 - 实验 · 物理学 2014-11-17 Boris Ravaine , M. G. Kozlov , Andrei Derevianko

In the CP violating supersymmetric extension of the standard model with local gauged baryon and lepton symmetries(BLMSSM), there are new CP violating sources which can give new contributions to the quark electric dipole moment (EDM).…

高能物理 - 唯象学 · 物理学 2017-03-08 Shu-Min Zhao , Tai-Fu Feng , Zhong-Jun Yang , Hai-Bin Zhang , Xing-Xing Dong , Tao-Guo

The SUSY CP problem is one of serious problems in construction of realistic supersymmetric standard models. We consider the problem in a framework in which adjoint chiral multiplets are introduced and gauginos have Dirac mass terms induced…

高能物理 - 唯象学 · 物理学 2008-11-26 Junji Hisano , Minoru Nagai , Tatsuya Naganawa , Masato Senami

The theta term that breaks the Strong CP symmetry is introduced in the two flavors of dynamical QCD simulation. theta is analytically continued to a pure imaginary number to make the probability of Monte Carlo positive. The Neutron's…

高能物理 - 格点 · 物理学 2008-11-26 Taku Izubuchi , Sinya Aoki , Koichi Hashimoto , Yoshifumi Nakamura , Toru Sekido , Gerrit Schierholz

We set up the framework for the calculation of electric dipole moments (EDMs) of light nuclei using the systematic expansion provided by chiral effective field theory (EFT). We take into account parity (P) and time-reversal (T) violation…

高能物理 - 唯象学 · 物理学 2011-12-12 J. de Vries , R. Higa , C. -P. Liu , E. Mereghetti , I. Stetcu , R. G. E. Timmermans , U. van Kolck

The strong CP problem is inseparably connected with the topology of gauge fields and the mechanism of color confinement, which requires nonperturbative tools to solve it. In this talk I present results of a recent lattice investigation of…

高能物理 - 格点 · 物理学 2023-01-11 Gerrit Schierholz

The nuclear electric dipole moment is a very sensitive probe of CP violation beyond the standard model, and for light nuclei, it can be evaluated accurately using the few-body calculational methods. In this talk, we present the result of…

核理论 · 物理学 2016-07-01 Nodoka Yamanaka

We perform a global fit using results of searches for electric dipole moments (EDM) of diamagnetic systems within the context of the minimal left-right symmetric model. In this way, we disentangle the new "left-right" electroweak and…

高能物理 - 唯象学 · 物理学 2021-02-17 Michael J. Ramsey-Musolf , Juan Carlos Vasquez

Models that combine Abelian horizontal symmetries and spontaneous CP violation can (i) explain the smallness and hierarchy in quark parameters; (ii) satisfactorily suppress supersymmetric contributions to flavor changing neutral current…

高能物理 - 唯象学 · 物理学 2009-10-28 Yosef Nir , Riccardo Rattazzi

We consider the low energy effective chiral theory of QCD mesons and the electroweak Goldstone bosons. In this effective theory the pion sector contributes to the gauge boson masses and the Yukawa couplings of the fermions. Consequently the…

高能物理 - 唯象学 · 物理学 2007-05-23 Subhendra Mohanty

According to the Schiff theorem nuclear electric dipole moment (EDM) is completely shielded in a neutral atom by electrons. This makes a static nuclear electric dipole moment (EDM) unobservable. Interaction with the axion dark matter field…

高能物理 - 唯象学 · 物理学 2020-01-01 V. V. Flambaum , H. B. Tran Tan

A particle, which moves in a crystal, experiences weak interactions with electrons and nuclei alongside with electromagnetic interaction. Measuring the polarization vector and the angular distribution of charged and neutral particles…

高能物理 - 唯象学 · 物理学 2019-05-17 V. G. Baryshevsky

Relativistic many-body methods at different levels of approximations are employed to gain insights into the passage of the electron correlations from lower to higher levels in the accurate determination of the electric dipole polarizability…

原子物理 · 物理学 2015-03-18 Yashpal Singh , B. K. Sahoo

We propose a mechanism for relaxing a gauge theory CP violating phase in discrete steps to very small values. The idea is that the CP violating phase includes the magnetic dual of a $4$-form flux which can discharge by the nucleation of…

高能物理 - 唯象学 · 物理学 2026-04-28 Nemanja Kaloper

Intrinsic EDMs in microscopic systems at a level of sensitivity achievable in experiments under way or foreseen are predicted in supersymmetric unified theories. I describe this and other sources of measurable EDMs and I show how these…

高能物理 - 唯象学 · 物理学 2015-06-25 Andrea Romanino