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Related papers: Neutron Electric Dipole Moment in the Minimal Supe…

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We analyze the neutron electric dipole moment (EDM) in the Minimal Supersymmetric Model with explicit R-parity violating terms. The leading contribution to the EDM occurs at the 2-loop level and is dominated by the chromoelectric dipole…

High Energy Physics - Phenomenology · Physics 2009-09-01 Darwin Chang , We-Fu Chang , Mariana Frank , Wai-Yee Keung

We study the constraints on the CP-violating soft-breaking phases in the minimal supersymmetric standard model using the limits on the chromoelectric dipole moment of the strange quark extracted from the neutron EDM experiment. Our…

High Energy Physics - Phenomenology · Physics 2016-09-06 C. Hamzaoui , M. Pospelov , R. Roiban

A nonvanishing value for the electric dipole moment (EDM) of the neutron is a prominent signature for CP violation. The EDM induced by the Kobayashi-Maskawa mechanism of the standard model (SM) has a small magnitude and its detection will…

High Energy Physics - Phenomenology · Physics 2007-05-23 Noriyuki Oshimo

The supersymmetric standard model (SSM) has a CP-violating phase in its gauge-Higgs sector. This new source of CP violation induces the electric dipole moments (EDMs) of the neutron and electron at the one-loop level. The same CP-violating…

High Energy Physics - Phenomenology · Physics 2009-10-30 Noriyuki Oshimo

In the supersymmetric standard model (SSM) the $W$-boson could have a non-vanishing electric dipole moment (EDM) through a one-loop diagram mediated by the charginos and neutralinos. Then the $W$-boson EDM induces the EDMs of the neutron…

High Energy Physics - Phenomenology · Physics 2019-08-17 Tomoko Kadoyoshi , Noriyuki Oshimo

We calculate the electric dipole moment (EDM) for the neutron in the framework of the minimal 3-3-1 model. We assume that the only source of $CP$ violation arises from a complex trilinear coupling constant and two complex vacuum expectation…

High Energy Physics - Phenomenology · Physics 2016-09-07 G. De Conto , V. Pleitez

An analysis of the electric dipole moment (EDM) of the neutron and of the leptons in the minimal supersymmetric standard model (MSSM) with the most general allowed set of CP violating phases without generational mixing is given. The…

High Energy Physics - Phenomenology · Physics 2014-11-17 Tarek Ibrahim , Pran Nath

We analyze the effects of CP-violating phases on the electric dipole moment (EDM) of electron and neutron in the constrained minimal supersymmetric model. We find that the phases phi_{\mu} and phi_{A_0} have to be strongly correlated, in…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. Bartl , T. Gajdosik , W. Porod , P. Stockinger , H. Stremnitzer

Considering the CP violating phases, we analyze the neutron electric dipole moment (EDM) in a CP violating supersymmetric extension of the standard model where baryon and lepton numbers are local gauge symmetries(BLMSSM). The contributions…

High Energy Physics - Phenomenology · Physics 2015-06-16 Shu-Min Zhao , Tai-Fu Feng , Ben Yan , Hai-Bin Zhang , Yin-Jie Zhang , Biao Chen , Xue-Qian Li

In the N-B-LSSM, we calculate the electric dipole moments (EDMs) of lepton and neutron at the one loop level via the Mass Insertion Approximation (MIA). In the Standard Model (SM), charge parity (CP) violation originates only from the…

High Energy Physics - Phenomenology · Physics 2026-03-17 Shuang Di , Wei-Hang Zhang , Rong-Zhi Sun , Xing-Xing Dong , Guo-Zhu Ning , Shu-Min Zhao

The neutron electric dipole moment is investigated in a supersymmetric electroweak model admitting $ {\rm SU(2)}_W $ singlet and $ Q = -1/3 $, say $ D $-type, quarks. Significant $ CP $ violating phases appear in the coupling between the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Yoshiya Takeda , Isao Umemura , Katsuji Yamamoto , Dai Yamazaki

An analysis of the neutron EDM and of the electron EDM in minimal N=1 supergravity unification with two CP violating phases is given. For the neutron the analysis includes the complete one loop gluino, chargino, and neutralino exchange…

High Energy Physics - Phenomenology · Physics 2014-11-17 Tarek Ibrahim , Pran Nath

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…

High Energy Physics - Phenomenology · Physics 2009-09-25 Shahida Dar

The electric dipole moments (EDMs) of the neutron and the electron are reviewed within the framework of the supersymmetric standard model (SSM) based on grand unified theories coupled to N=1 supergravity. Taking into account one-loop and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mayumi Aoki , Tomoko Kadoyoshi , Akio Sugamoto , Noriyuki Oshimo

The searching for the electric dipole moments (EDMs) of neutron ($d_n$), $b$ quark ($d_b$) and $c$ quark ($d_c$) gives strict upper bounds on these quantities. And recently, new upper bounds on $d_b$, $d_c$ are obtained by the strict limit…

High Energy Physics - Phenomenology · Physics 2020-04-10 Jin-Lei Yang , Tai-Fu Feng , Sheng-Kai Cui , Chang-Xin Liu , Wei Li , Hai-Bin Zhang

Using an effective theory approach, we calculate the neutron electric dipole moment (nEDM) in the minimal left-right symmetric model with both explicit and spontaneous CP violations. We integrate out heavy particles to obtain flavor-neutral…

High Energy Physics - Phenomenology · Physics 2015-05-14 Fanrong Xu , Haipeng An , Xiangdong Ji

We study and analyze the electric dipole moments (EDMs) of neutron and heavy quarks c, t in a CP-violating (CPV) supersymmetric U(1) extension of the standard model called $U(1)_X$SSM, whose local gauge group is $U(1)_X\times SU(3)_C\times…

High Energy Physics - Phenomenology · Physics 2021-11-02 Ben Yan , Shu-Min Zhao , Tai-Fu Feng

We analyse the electric dipole moment of the neutron in the MSSM, induced by the renormalisation of the soft-susy breaking terms. We run the RGEs using two-loop expressions for gauge and Yukawa couplings and retaining family dependence. The…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. A. Abel , W. N. Cottingham , I. B. Whittingham

The neutron electric dipole moment (EDM) provides unique information on CP violation and physics beyond the Standard Model. We first review the history of experimental searches for neutron electric dipole moment. The status of future…

Nuclear Experiment · Physics 2008-11-26 Jen-Chieh Peng

A non-universal anomaly free $U(1)_{X}$ extension to the Minimal Supersymmetric Standard Model, consisting of four scalar doublets, four scalar singlets and additional quark and lepton singlets including right-handed and Majorana neutrinos,…

High Energy Physics - Phenomenology · Physics 2021-03-04 J. S. Alvarado , R. Martinez
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