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相关论文: CP Violating Phases, Nonuniversal Soft Breaking An…

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We review the status of the electric dipole moment (EDM) of neutron in the Standard Model (SM). The contributions of the strong and electroweak interactions are discussed seperately. In each case the structure of the Lagrangian and the…

高能物理 - 唯象学 · 物理学 2009-09-25 Shahida Dar

We examine the cancellation mechanism between the different contributions to the electric dipole moment of the neutron in a model with dilaton-dominated SUSY breaking. We find these accidental cancellations occur at few points in parameter…

高能物理 - 唯象学 · 物理学 2011-05-12 S. M. Barr , Shaaban Khalil

The possibility of cancelation between different contributions to d_e, d_n and d_{Hg} has been reconsidered with special emphasis on the region that is phenomenologically interesting (intermediate values of \tan \beta and sub-TeV sfermion…

高能物理 - 唯象学 · 物理学 2014-11-18 Seyed Yaser Ayazi , Yasaman Farzan

Within the minimal supersymmetric standard model (MSSM), the large tan(beta) regime can lead to important modifications in the pattern of CP-violating sources contributing to low energy electric dipole moments (EDMs). In particular,…

高能物理 - 唯象学 · 物理学 2008-11-26 Durmus Demir , Oleg Lebedev , Keith A. Olive , Maxim Pospelov , Adam Ritz

The Higgs sector which is extended from the standard model could generally become an origin of CP violation. In the model with two doublet and one triplet Higgs fields on SU(2) symmetry, we study the electric dipole moment (EDM) of the…

高能物理 - 唯象学 · 物理学 2019-05-07 Noriyuki Oshimo

We analyze the constraints imposed by experimental upper limits on electric dipole moments (EDMs) within the Maximally CP- and Minimally Flavour-Violating (MCPMFV) version of the MSSM. Since the MCPMFV scenario has 6 non-standard…

高能物理 - 唯象学 · 物理学 2014-11-21 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

Neutron Electric Dipole Moment (nEDM), a generic feature of CP-violation, is predicted to be very small in the Standard Model, but can be much larger in most extensions of the model. In this talk, I will discuss the classification of the CP…

高能物理 - 格点 · 物理学 2014-03-12 Tanmoy Bhattacharya , Vincenzo Cirigliano , Rajan Gupta

We calculate the electric dipole moments (EDM) of the neutral Hg(199) atom, deuteron, nucleons and neutral hyperons Lambda, Sigma(0) and Xi(0) in the framework of a generic SUSY model without R-parity conservation (RPV SUSY) on the basis of…

高能物理 - 唯象学 · 物理学 2007-05-23 Amand Faessler , Thomas Gutsche , Sergey Kovalenko , Valery E. Lyubovitskij

The electric dipole moment (EDM) of electron is studied in the supersymmetric $\rm A_4$ modular invariant theory of flavors with CP invariance. The CP symmetry of the lepton sector is broken by fixing the modulus $\tau$. Lepton mass…

高能物理 - 唯象学 · 物理学 2021-11-10 Morimitsu Tanimoto , Kei Yamamoto

Electric dipole moments are extremely sensitive probes for additional sources of CP violation in new physics models. The multi-scale problem of relating the high-precision measurements with neutrons, atoms and molecules to fundamental…

高能物理 - 唯象学 · 物理学 2015-09-17 Martin Jung

We estimate the electron and neutron electric dipole moments in the focus point scenario of the minimal SUGRA model corresponding to large sfermion masses and moderate to large $\tan\beta$. There is a viable region of moderate fine-tuning…

高能物理 - 唯象学 · 物理学 2009-10-31 Utpal Chattopadhyay , Tarek Ibrahim , D. P. Roy

A triple vector correlation in the $\mu^{+} \to e^{+} e^{+} e^{-}$ decay with polarized muons is investigated as a probe to CP violating coupling constants in supersymmetric models. A sizable triple correlation can be induced due to a…

高能物理 - 唯象学 · 物理学 2009-12-30 Yasuhiro Okada , Ken-ichi Okumura , Yasuhiro Shimizu

We discuss CP violation in supersymmetric theories and show that CP phenomena can act as a probe of their origins, i.e., compactification and spontaneous supersymmetry breaking. CP violation as a probe of the flavor structure of…

高能物理 - 唯象学 · 物理学 2007-05-23 Tarek Ibrahim , Pran Nath

We reexamine large CP-violating phases in the general Minimal Supersymmetric Standard Model, as well as more restricted models. We perform a detailed scan over parameter space to find solutions which satisfy the current experimental limits…

高能物理 - 唯象学 · 物理学 2009-09-15 V. Barger , T. Falk , T. Han , J. Jiang , T. Li , T. Plehn

CP-violating phases which contribute to the electric dipole moment(EDM) of the neutron are considered in the context of orbifold compactificationof the heterotic string. In particular, we study the situation where CP is spontaneously broken…

高能物理 - 理论 · 物理学 2009-10-28 B. Acharya , D , Bailin , A. Love , W. A. Sabra , S. Thomas

CP violating interactions are required to realize the matter abundance of our Universe. It is however known that the standard model of particle physics does not contain sufficient CP violation. The electric dipole moment (EDM) of atomic…

高能物理 - 唯象学 · 物理学 2022-11-18 Nodoka Yamanaka

The prevalence of matter over antimatter in the observable universe remains one of the most profound puzzles in modern physics, necessitating sources of charge-parity (CP) symmetry violation beyond those incorporated in the Standard Model.…

高能物理 - 实验 · 物理学 2026-04-20 Jianyu Zhang

The Two Higgs Doublet Model (2HDM) stands as a promising framework for exploring physics beyond the Standard Model (SM). Within this context, we explore the possibility that the two Higgs doublets may serve as a window into CP-violating…

高能物理 - 唯象学 · 物理学 2024-02-16 Jia Liu , Yuichiro Nakai , Yoshihiro Shigekami , Muyuan Song

We demonstrate that in effective theories arising from a class of N=1 fluxless compactifications of M-theory on a G2 manifold with low energy supersymmetry, CP-violating phases do not appear in the soft-breaking Lagrangian except via the…

高能物理 - 唯象学 · 物理学 2011-01-26 Gordon Kane , Piyush Kumar , Jing Shao

In the supersymmetric model with local gauged baryon and lepton numbers(BLMSSM), the CP violating effects are considered to study the lepton electric dipole moment(EDM). The CP violating phases in BLMSSM are more than those in the standard…

高能物理 - 唯象学 · 物理学 2015-07-24 Shu-Min Zhao , Tai-Fu Feng , Xi-Jie Zhan , Hai-Bin Zhang , Ben Yan