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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

CP violation in the lepton sector, and other aspects of neutrino physics, are studied within a high scale supersymmetry model. In addition to the sneutrino vacuum expectation values (VEVs), the heavy vector-like triplet also contributes to…

High Energy Physics - Phenomenology · Physics 2020-10-14 Ying-Ke Lei , Chun Liu

Hyperfine-induced electric dipole contributions may significantly increase probabilities of otherwise very weak electric octupole and magnetic quadrupole atomic clock transitions (e.g. transitions between $s$ and $f$ electron orbitals).…

Atomic Physics · Physics 2016-06-01 V. A. Dzuba , V. V. Flambaum

Several recent theories suggest that light moduli or particles in "large" extra dimensions could mediate macroscopic forces exceeding gravitational strength at length scales below a millimeter. Such new forces can be parameterized as a…

High Energy Physics - Experiment · Physics 2008-11-26 Andrew A. Geraci , Sylvia J. Smullin , David M. Weld , John Chiaverini , Aharon Kapitulnik

The simplest interpretation of the global success of the Standard Model is that new physics decouples well above the electroweak scale. Supersymmetric extension of the Standard Model offers the possibility of light chargino and the…

High Energy Physics - Phenomenology · Physics 2009-10-28 P. H. Chankowski , S. Pokorski

A minimal supersymmetric version of the Standard Model with complex parameters allows contributions to the weak-electric dipole moments of fermions at the one-loop level. Assuming generation-diagonal trilinear soft-susy-breaking terms and…

High Energy Physics - Phenomenology · Physics 2014-11-17 W. Hollik , J. I. Illana , S. Rigolin , D. Stoeckinger

The experimental limit on the neutron electric dipole moment is used as a possible probe of new physics beyond the standard model. Within MSSM we use the current experimental limit on the neutron EDM and possible future improvement as a…

High Energy Physics - Phenomenology · Physics 2015-06-11 Amin Aboubrahim , Tarek Ibrahim , Pran Nath

Effective Supersymmetry is presented as a theory of physics above the electroweak scale which has significant theoretical advantages over both the standard model and the Minimal Supersymmetric Standard Model (MSSM). The theory is…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. G. Cohen , D. B. Kaplan , A. E. Nelson

These notes are intended to provide an introduction to supersymmetry. The notes begin with supersymmetric quantum mechanics and the basic properties of spinor fields. The supersymmetry of simple theories of spin-zero and spin-one-half…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kevin Cahill

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

We investigate the maximal approximate flavor symmetry in the framework of generic minimal supersymmetric standard model. We consider the low energy effective theory of the flavor physics with all the possible operators included.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Zhijian Tao

Motivated by recent progress in experimental techniques of electric dipole moment (EDM) measurements, we study correlations between the neutron and electron EDMs in common supersymmetric models. These include minimal supergravity (mSUGRA)…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Abel , O. Lebedev

The supersymmetric flavor, CP and Polonyi problems are hints that the fundamental scale of the soft supersymmetry breaking parameters may be above a TeV, in apparent conflict with naturalness. We consider the possibility that multi-TeV…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jonathan Bagger , Jonathan L. Feng , Nir Polonsky

Baryon asymmetry of the universe can be generated by new sources of $CP$ violation intrinsic in supersymmetric extension of the standard model. This scenario predicts the neutron electric dipole moment to be not much smaller than its…

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

In this work, we analyzed an anomalous effect verified from symmetrical capacitor devices, working in very high electric potentials. The mastery of that effect could mean in the future the possible substitution of propulsion technology…

General Physics · Physics 2016-05-04 Elio B. Porcelli , Victo S. Filho

Large corrections to the quark mass matrices at the supersymmetric threshold allow the theory to have identical Yukawa matrices in the superpotential. We demonstrate that Up-Down unification can take place in a moderate quark-squark…

High Energy Physics - Phenomenology · Physics 2011-02-01 C. Hamzaoui , M. Pospelov

We report the first fully general numerical calculation of the neutron and electron dipole moments, including the seven significant phases. We find that there are major regions in the parameter space where none of the phases are required to…

High Energy Physics - Phenomenology · Physics 2016-08-25 Michal Brhlik , Gerald J. Good , G. L. Kane

Supersymmetric models with a warped fifth spatial dimension can solve the hierarchy problem, avoiding some shortcomings of non-supersymmetric constructions, and predict a plethora of new phenomena at typical scales Lambda not far from the…

High Energy Physics - Phenomenology · Physics 2009-11-07 J. Casas , J. R. Espinosa , I. Navarro

In the generic supersymmetric standard model which had no global symmetry enforced by hand, lepton number violation is a natural consequence. Supersymmetry, hence, can be considered the source of experimentally demanded beyond standard…

High Energy Physics - Phenomenology · Physics 2009-11-07 Sin Kyu Kang , Otto C. W. Kong

Hierarchical masses of quarks and leptons are addressed by imposing horizontal symmetries. In supersymmetric Standard Models, the same symmetries play a role in suppressing flavor violating processes induced by supersymmetric particles.…

High Energy Physics - Phenomenology · Physics 2021-10-27 Yuichiro Nakai , Matthew Reece , Motoo Suzuki
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