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The pieces of the hypernuclear strangeness violating potential due to the pseudoscalar meson exchanges are derived using methods which were successfully applied to hyperon nonleptonic decays. The estimates are tested by comparison with…

高能物理 - 唯象学 · 物理学 2016-08-15 Cesar Barbero , Franjo Krmpotić , Dubravko Horvat , Zoran Narančić , Dubravko Tadić

A depth of $D_{\Lambda}\approx -28$ MeV for the $\Lambda$-nucleus potential was confirmed in 1988 by studying $\Lambda$ binding energies deduced from $(\pi^+,K^+)$ spectra measured across the periodic table. Modern two-body hyperon-nucleon…

核理论 · 物理学 2023-01-11 E. Friedman , A. Gal

We analyse the signal sensitivity of multi-lepton final states at collider that can arise from doubly and singly charged Higgs decay in a type-II seesaw framework. We assume triplet vev to be very small and degenerate masses for both the…

高能物理 - 唯象学 · 物理学 2020-05-12 Rojalin Padhan , Debottam Das , Manimala Mitra , Aruna Kumar Nayak

We present a new mechanism for doublet-triplet splitting in supersymmetric SO(10) models using a missing vev pattern which is different from the one used in the currently popular Dimopoulos-Wilczek method. In our method, the doublets in a…

高能物理 - 唯象学 · 物理学 2010-12-09 Z. Chacko , Rabindra N. Mohapatra

The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. We analyze the case…

高能物理 - 唯象学 · 物理学 2016-10-20 Peter Arnold , Shahin Iqbal

A multipole decomposition of a cross-section is a useful tool to simplify the analysis of reactions due to their symmetry properties. By using a new approach to decompose antisymmetric tensor-type interactions within the multipole analysis,…

核理论 · 物理学 2023-05-10 Ayala Glick-Magid , Doron Gazit

Relativistic corrections to the hyperfine splitting are calculated for the triplet $2^3S_1$ state of the helium isotope He$^3$. High precision variational wave functions are employed, where the electron-electron correlations are well…

原子物理 · 物理学 2009-11-07 Krzysztof Pachucki

Fission-related phenomena of heavy $\Lambda$ hypernuclei are discussed with the constraint Skyrme-Hartree-Fock+BCS (SHF+BCS) method, in which a similar Skyrme-type interaction is employed also for the interaction between a $\Lambda$…

核理论 · 物理学 2009-11-25 F. Minato , S. Chiba , K. Hagino

To test a multicluster approach for halo nuclei, we give a unified description for the ground states of $^6$He and $^8$He in a model comprising an $\alpha$ cluster and single-neutron clusters. The intercluster wave function is taken a…

核理论 · 物理学 2009-10-22 K. Varga , Y. Suzuki , R. G. Lovas

In the present work the so-called Higher Tamm-Dancoff Apporximation method is presented for the generalized case of isovector and isoscalar residual interactions treated simultaneously. The role of different particle-hole excitations and of…

核理论 · 物理学 2008-11-26 K. Sieja , T. L. Ha , P. Quentin , A. Baran

We consider a supersymmetric hypercolor gauge theory with six flavors of quarks interacting strongly at the grand unification scale. This model solves the most serious problem -- doublet-triplet splitting in the grand unified theories. We…

高能物理 - 唯象学 · 物理学 2009-10-28 T. Hotta , K. -I. Izawa , T. Yanagida

We study the effects of higher-order deformations $\beta_\lambda$ ($\lambda=4,6,8,$ and $10$) on the ground state properties of superheavy nuclei (SHN) near the doubly magic deformed nucleus $^{270}$Hs by using the…

核理论 · 物理学 2021-11-16 Xiao-Qian Wang , Xiang-Xiang Sun , Shan-Gui Zhou

In the lepton-specific version of two Higgs doublet models, a discrete symmetry is used to couple one Higgs, $\Phi_2$, to quarks and the other, $\Phi_1$, to leptons. The symmetry eliminates tree level flavor changing neutral currents…

高能物理 - 唯象学 · 物理学 2017-03-15 Marco Merchand , Marc Sher

We constrain general Dirac neutrino interactions based on the Standard Model Effective Field Theory framework extended with right-handed neutrinos $N$ (SMNEFT) using deep inelastic and coherent elastic neutrino scattering, nuclear beta…

高能物理 - 唯象学 · 物理学 2021-06-08 Tao Han , Jiajun Liao , Hongkai Liu , Danny Marfatia

High-precision measurements in neutrino oscillation experiments require a very accurate description of the lepton-nucleus scattering process. Several cross-section calculations are available, but important discrepancies are still present…

核理论 · 物理学 2024-01-12 Valerio Belocchi , Maria Benedetta Barbaro , Arturo De Pace , Marco Martini

The most recent development of the quark-meson coupling (QMC) model, in which the effect of the mean scalar field in-medium on the hyperfine interaction is also included self-consistently, is used to compute the properties of finite…

核理论 · 物理学 2009-06-19 Pierre A. M. Guichon , Anthony W. Thomas , Kazuo Tsushima

Observables from nuclear and high-energy experiments can be degraded by detector performance and/or methodology in extracting the observables, such as of the final-state characteristics of heavy-ion collisions in relation to a coarsely…

核理论 · 物理学 2022-03-14 Pawel Danielewicz , Mizuki Kurata-Nishimura

The presence of extra scalar singlets is a feature of several motivated extensions of the Standard Model, and the mixing of such a singlet with the Higgs boson is allowed to be quite large by current experiments. In this paper we perform a…

高能物理 - 唯象学 · 物理学 2016-01-20 Dario Buttazzo , Filippo Sala , Andrea Tesi

In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei can provide information on the details of the effective hyperon-nucleon interaction. Electroproduction of the hypernucleus…