scholarly journals Electric Dipole Moments of Light Nuclei From Chiral Effective Field Theory

2012 ◽  
Vol 54 (7-10) ◽  
pp. 1495-1498
Author(s):  
R. Higa
2011 ◽  
Vol 84 (6) ◽  
Author(s):  
J. de Vries ◽  
R. Higa ◽  
C.-P. Liu ◽  
E. Mereghetti ◽  
I. Stetcu ◽  
...  

2015 ◽  
Vol 2015 (3) ◽  
Author(s):  
J. Bsaisou ◽  
J. de Vries ◽  
C. Hanhart ◽  
S. Liebig ◽  
Ulf-G. Meißner ◽  
...  

2015 ◽  
Vol 2015 (5) ◽  
Author(s):  
J. Bsaisou ◽  
J. de Vries ◽  
C. Hanhart ◽  
S. Liebig ◽  
Ulf-G. Meißner ◽  
...  

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Jason Aebischer ◽  
Wouter Dekens ◽  
Elizabeth E. Jenkins ◽  
Aneesh V. Manohar ◽  
Dipan Sengupta ◽  
...  

Abstract We perform a model-independent analysis of the magnetic and electric dipole moments of the muon and electron. We give expressions for the dipole moments in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT). We use one-loop renormalization group improved perturbation theory, including the one-loop matching from SMEFT onto LEFT, and one-loop lepton matrix elements of the effective-theory operators. Semileptonic four-fermion operators involving light quarks give sizable non-perturbative contributions to the dipole moments, which are included in our analysis. We find that only a very limited set of the SMEFT operators is able to generate the current deviation of the magnetic moment of the muon from its Standard Model expectation.


2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Zichao Yang ◽  
Emanuele Mereghetti ◽  
Lucas Platter ◽  
Matthias R. Schindler ◽  
Jared Vanasse

2017 ◽  
Vol 32 (07) ◽  
pp. 1750044 ◽  
Author(s):  
Wei-Jian Wang ◽  
Zhe-Hui Yan ◽  
Rong-Hua Guan ◽  
Xing-Ning Wei

The possibility to detect the noncommutative (NC) spacetime in the electric dipole moments (EDM) experiments is studied in the effective field theory of noncommutative Standard Model (NCSM) with many additional deformations. The EDM given by the previous literatures do not have any observable effect since they are spin-independent. In this work, it is found that three of the deformed terms provide extra sources of CP violation contributed to EDM. We show that these EDMs are sensitive to the spin and thus have potential to be measured in the highly precise experiments. In particular, the EDM induced by NC spacetime may not be parallel to the direction of spin, which demonstrates the intrinsic feature of NC field theory.


2009 ◽  
Vol 24 (11n13) ◽  
pp. 921-930
Author(s):  
HERMANN KREBS

Using chiral effective field theory (EFT) with explicit Δ degrees of freedom we calculated nuclear forces up to next-to-next-to-leading order (N2LO). We find a much improved convergence of the chiral expansion in all peripheral partial waves. We also present a novel lattice EFT method developed for systems with larger number of nucleons. Combining Monte Carlo lattice simulations with EFT allows one to calculate the properties of light nuclei, neutron and nuclear matter. Accurate description of two-nucleon phase-shifts and ground state energy ratio of dilute neutron matter up to corrections of higher orders show that lattice EFT is a promising tool for quantitative studies of low-energy few- and many-body systems.


2022 ◽  
Vol 258 ◽  
pp. 06007
Author(s):  
Alex Gnech ◽  
Jordy de Vries ◽  
Sachin Shain ◽  
Michele Viviani

CP-violating interactions at quark level generate CP-violating nuclear interactions and currents, which could be revealed by looking at the presence of a permanent nuclear electric dipole moment. Within the framework of chiral effective field theory, we discuss the derivation of the CP-violating nuclear potential up to next-to-next-to leading order (N2LO) and the preliminary results for the charge operator up to next-to leading order (NLO). Moreover, we introduce some renormalization argument which indicates that we need to promote the short-distance operator to the leading order (LO) in order to reabsorb the divergences generated by the one pion exchange. Finally, we present some selected numerical results for the electric dipole moments of 2H, 3He and 3H discussing the systematic errors introduced by the truncation of the chiral expansion.


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