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We investigate numerically how accurately one could constrain the strengths of different short-range contributions to neutrino-less double beta decay in effective field theory. Depending on the outcome of near-future experiments yielding…

高能物理 - 唯象学 · 物理学 2015-03-19 Johannes Bergstrom , Alexander Merle , Tommy Ohlsson

Nucleon decays into a lepton and two pseudoscalar mesons represent key channels for probing baryon number violation, complementing conventional two-body modes. In this Letter, we model-independently correlate two- and three-body processes…

高能物理 - 唯象学 · 物理学 2026-04-28 Wei-Qi Fan , Yi Liao , Xiao-Dong Ma

We present a thorough analysis of the effects of the tensor interaction on the multipole response of magic nuclei, using the fully self-consistent Random Phase Approximation (RPA) model with Skyrme interactions. We disentangle the…

核理论 · 物理学 2009-12-30 Li-Gang Cao , G. Colo' , H. Sagawa , P. F. Bortignon , L. Sciacchitano

Contributions of three-nucleon forces (3NF) to proton-deuteron scattering observables at energies below the deuteron breakup threshold are studied by solving the Faddeev equation that includes the Coulomb interaction. At E_p=3.0 MeV, we…

核理论 · 物理学 2009-11-10 S. Ishikawa , M. Tanifuji , Y. Iseri

We address the typical strengths of hadronic parity-violating three-nucleon interactions in "pion-less" Effective Field Theory in the nucleon-deuteron (iso-doublet) system. By analysing the superficial degree of divergence of loop diagrams,…

核理论 · 物理学 2014-11-21 Harald W. Griesshammer , Matthias R. Schindler

We determine the influence of the three-body force and the medium modification of meson masses on pairing in nuclear and neutron matter. A reduction of the pairing gap is found and increasing with density.

核理论 · 物理学 2009-11-07 W. Zuo , U. Lombardo , H. -J. Schulze , C. W. Shen

Deuteron correlation energy (DCE) of the valence proton-neutron subsystem is evaluated by utilizing a simple three-body model. We focus on the $^6$Li and $^{18}$F nuclei assuming the doubly-closed core and the valence proton and neutron.…

核理论 · 物理学 2017-06-21 Tomohiro Oishi , Lorenzo Fortunato

We investigate the sensitivity of the non-exclusive nucleon induced deuteron breakup reaction to the three-nucleon interaction and distributions of three-nucleon force effects in inclusive spectra. To this end we solve the three-nucleon…

核理论 · 物理学 2020-06-24 H. Witała , J. Golak , R. Skibiński , V. Soloviov , K. Topolnicki

The nuclear physics relevant to the electric dipole moment (EDM) of the deuteron is addressed. The general operator structure of the $P$- and $T$-odd nucleon-nucleon interaction is discussed and applied to the two-body contributions of the…

核理论 · 物理学 2014-11-18 C. -P. Liu , R. G. E. Timmermans

Parity violating (PV) effects in neutron-deuteron radiative capture are studied using Desplanques, Donoghue, and Holstein (DDH) and effective field theory weak potentials. The values of PV effects are calculated using wave functions,…

核理论 · 物理学 2015-06-05 Young-Ho Song , Rimantas Lazauskas , Vladimir Gudkov

The purpose of this note is to report predictions of the binding energy of the $\Lambda$ hyperon in nuclear matter using the latest version of the Juelich nucleon-nucleon meson-exchange potential. Results from a conventional Brueckner…

核理论 · 物理学 2008-01-08 Francesca Sammarruca

Determination of the proper power-counting scheme is an important issue for the systematic application of Chiral Effective Field Theory in nuclear physics. We analyze the cutoff dependence of three-nucleon observables (the neutron-deuteron…

核理论 · 物理学 2019-08-14 Young-Ho Song , Rimantas Lazauskas , U. van Kolck

The dd -> alpha X reaction is studied in a model where each pair of nucleons in the projectile and target deuterons undergoes pion production through the NN -> d pi reaction. The condition that the two deuterons fuse to form an…

核理论 · 物理学 2009-10-30 A. Gardestig , G. Faldt , C. Wilkin

Faddeev calculations have been performed for nucleon-deuteron photodisintegration of 3He(3H) and proton-deuteron radiative capture. The bulk of the results is based on the AV18 nucleon-nucleon force and the Urbana IX three-nucleon force…

核理论 · 物理学 2009-11-07 R. Skibinski , J. Golak , H. Kamada , H. Witala , W. Glockle , A. Nogga

Within the relativistic Brueckner-Hartree-Fock theory in the full Dirac space, the tensor-force effects on infinite nuclear matter are elucidated by subtracting the matrix elements of tensor forces from the realistic nucleon-nucleon…

核理论 · 物理学 2024-06-04 Sibo Wang , Hui Tong , Chencan Wang , Qiang Zhao , Peter Ring , Jie Meng

Parity-violating and time-reversal conserving (PVTC) and parity-violating and time-reversal-violating (PVTV) forces in nuclei form only a tiny component of the total interaction between nucleons. The study of these tiny forces can…

核理论 · 物理学 2021-02-23 J. de Vries , E. Epelbaum , L. Girlanda , A. Gnech , E. Mereghetti , M. Viviani

The dependence of the nuclear force on standard model parameters plays an important role in bounding time and space variations of fundamental couplings over cosmological time scales. We discuss the quark-mass dependence of deuteron and…

高能物理 - 唯象学 · 物理学 2014-11-17 Silas R. Beane , Martin J. Savage

We investigate in a relativistic Hartree theory the gross properties of cold symmetric nuclear matter and nuclear matter in beta equilibrium under the influence of strong magnetic fields. If the field strengths are above the critical values…

天体物理学 · 物理学 2009-10-30 Somenath Chakrabarty , Debades Bandyopadhyay , Subrata Pal

Symmetry energy behavior of scalar mesons interactions is analyzed within the framework of the standard relativistic mean field model. Whereas the presence of the $\delta$ meson itself makes the symmetry energy stiffer, the crossing term…

核理论 · 物理学 2019-03-25 Noemi Zabari , Sebastian Kubis , Włodzimierz Wójcik

New experimental data are presented on the energy dependence of the total cross sections for the np -> d eta and quasi-two-body pp -> pp eta reactions, where the final diproton is detected at very low excitation energy. Differential cross…

核理论 · 物理学 2010-12-17 Colin Wilkin