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Related papers: Evaluation of CP-violation in HfF$^+$

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The high effective electric field ($E_\mathrm{eff}$) experienced by the unpaired electron in an atom or a molecule is one of the key ingredients in the success of electron electric dipole moment (eEDM) experiment and its precise calculation…

Atomic Physics · Physics 2016-03-28 Sudip Sasmal , Himadri Pathak , Malaya K. Nayak , Nayana Vaval , Sourav Pal

Large scale ab initio calculations of the electric contribution (i.e. the electric field gradient) to the electric quadrupole hyperfine interaction constants $B$ for the $5p~^2P_{3/2}$ state in $^{109}$Cd$^+$ ion and the $5s5p~^3P_{1,2}$…

Atomic Physics · Physics 2022-10-05 Benquan Lu , Xiaotong Lu , Tao Wang , Hong Chang

We have studied the impact of CP-violating (CPV) effects on electroweak baryogenesis (EWBG) and the electric dipole moment (EDM) of electron ($d_e$), the electric dipole moment (EDM) of mercury neutron ($d_n$) and the electric dipole moment…

High Energy Physics - Phenomenology · Physics 2025-02-18 Xiang Yang , Ming-Hui Guo , Jin-Lei Yang , Qing-Hua Li , Tai-Fu Feng

We study the response of the QCD vacuum to an external magnetic field, in the presence of strong CP violation. Using chiral perturbation theory and large N_c expansion, we show that the external field would polarize quantum fluctuations and…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Millo , P. Faccioli

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 presence of P,T-violating interactions, the exchange of axion-like particles between electrons and nucleons in atoms and molecules induces electric dipole moments (EDMs) of atoms and molecules. We perform calculations of such…

Atomic Physics · Physics 2020-09-21 Y. V. Stadnik , V. A. Dzuba , V. V. Flambaum

A concept of CP-violating (T,P-odd) permanent molecular magnetic moments $\mu^{CP}$ is introduced. We relate the moments to the electric dipole moment of electron (eEDM) and estimate $\mu^{CP}$ for several diamagnetic polar molecules. The…

Atomic Physics · Physics 2008-12-18 Andrei Derevianko , M G Kozlov

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…

High Energy Physics - Phenomenology · Physics 2011-12-12 J. de Vries , R. Higa , C. -P. Liu , E. Mereghetti , I. Stetcu , R. G. E. Timmermans , U. van Kolck

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

Electric dipole moments are sensitive probes of new phases in the Higgs Yukawa couplings. We calculate the complete two-loop QCD anomalous dimension matrix for the mixing of CP-odd scalar and tensor operators and apply our results for a…

High Energy Physics - Phenomenology · Physics 2021-07-20 Joachim Brod , Emmanuel Stamou

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…

High Energy Physics - Phenomenology · Physics 2019-05-07 Noriyuki Oshimo

Parity-violating (PV) interactions among quarks in the nucleon induce a PV $\gamma NN$ coupling, or anapole moment (AM). We compute electroweak gauge-independent contributions to the AM through ${\cal O}(1/\lamchis)$ in chiral perturbation…

High Energy Physics - Phenomenology · Physics 2009-10-31 Shi-Lin Zhu , S. J. Puglia , B. R. Holstein , M. J. Ramsey-Musolf

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

High Energy Physics - Phenomenology · Physics 2009-09-25 J. Rosner

I present a review of current and near-future experimental investigations of CP violation. In this review, I cover limits on particle electric dipole moments (EDMs) and CP violation studies in the K and B systems. The wealth of results from…

High Energy Physics - Experiment · Physics 2010-11-05 Owen Long

The electric dipole moment (EDM) of a particle violates both time reversal (T) and space reflection (P) symmetries. There have been recent suggestions for searches of the electron EDM using solid state experiments [1,2]. These experiments…

Strongly Correlated Electrons · Physics 2009-11-07 S. A. Kuenzi , O. P. Sushkov , V. A. Dzuba , J. M. Cadogan

We calculate the effect of the P, CP-odd electron-nucleon interaction on the electric dipole moment of the $^{199}$Hg atom by evaluating the nuclear spin matrix elements in terms of the nuclear shell model. It is found that the neutron spin…

Nuclear Theory · Physics 2019-04-18 Kota Yanase , Naotaka Yoshinaga , Koji Higashiyama , Nodoka Yamanaka

The electric dipole moments of nucleons (NEDM, d_N) are calculated using the method of QCD sum rules. Our calculations are based on the parity and time reversal violating parameter $\thetabar$ in QCD and establish a functional dependence of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Chuan-Tsung Chan , Ernest M. Henley , Thomas Meissner

We analyze the neutralino-nucleus elastic cross-section in the MSSM, including contributions from CP-violating phases, using the four-fermi neutralino-quark interaction. Over a wide range of the MSSM parameter space we show the variations…

High Energy Physics - Phenomenology · Physics 2009-09-15 Toby Falk , Andrew Ferstl , Keith A. Olive

We study the neutron electric dipole moment in the presence of the CP-violating operators up to the dimension five in terms of the QCD sum rules. It is found that the OPE calculation is robust when exploiting a particular interpolating…

High Energy Physics - Phenomenology · Physics 2012-07-17 Junji Hisano , Jeong Yong Lee , Natsumi Nagata , Yasuhiro Shimizu

The energy splitings for $J = 1$, $F=3/2$, $|M_F|=3/2$ hyperfine levels of the $^3\Delta_1$ electronic state of $^{180}$Hf$^{19}$F$^+$ ion are calculated as functions of the external variable electric and magnetic fields within two…

Atomic Physics · Physics 2018-05-16 A. N. Petrov
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