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The results of extensive microscopic Relativistic Mean Field (RMF) calculations for the nuclei appearing in the alpha - decay chains of recently discovered superheavy elements with Z = 109 to 118 are presented and discussed. The calculated…

核理论 · 物理学 2009-11-11 Y. K. Gambhir , A. Bhagwat , M. Gupta

The main open problem in the physics of Lambda-hypernuclei is the lack of a sound theoretical interpretation of the large experimental values for the ratio G_n/G_p. To approach the problem, we have incorporated a Lambda N-> nN…

核理论 · 物理学 2008-11-26 G. Garbarino , A. Parreno , A. Ramos

The ground state multiplet structure for nuclei over the wide range of mass number $A$ was calculated in $\delta$-approximation and different mass relations for pairing energy was analysed in this work. Correlation between the calculated…

Nuclear pairing gaps of normally deformed and superdeformed nuclei are investigated using the particle-number conserving (PNC) formalism for the cranked shell model, in which the blocking effects are treated exactly. Both rotational…

核理论 · 物理学 2015-05-27 X. Wu , Z. H. Zhang , J. Y. Zeng , Y. A. Lei

The study of highly charged electronic and muonic hydrogen-like ions, provides an intriguing way to probe the internal structure of their atomic nuclei. In this work, we use nuclear structure calculations to accurately calculate the…

We generalize the Jacobi no-core shell model (J-NCSM) to study double-strangeness hypernuclei. All particle conversions in the strangeness $S=-1,-2$ sectors are explicitly taken into account. In two-body space, such transitions may lead to…

核理论 · 物理学 2021-07-08 Hoai Le , Johann Haidenbauer , Ulf-G Meißner , Andreas Nogga

It is possible to ameliorate the Higgs vacuum stability problem by switching over to two Higgs doublet models (2HDM), ensuring a stable electroweak vacuum up to the Planck scale, even though the top quark mass may be on the high side.…

高能物理 - 唯象学 · 物理学 2017-09-06 Nabarun Chakrabarty , Biswarup Mukhopadhyaya

Hamiltonian Truncation (a.k.a. Truncated Spectrum Approach) is an efficient numerical technique to solve strongly coupled QFTs in d=2 spacetime dimensions. Further theoretical developments are needed to increase its accuracy and the range…

高能物理 - 理论 · 物理学 2017-12-19 Joan Elias-Miro , Slava Rychkov , Lorenzo G. Vitale

The density dependent relativistic hadron field theory is extended to also describe strange systems. It is seen that the application to hypernuclei works extremely well. Important spin orbit effects in lambda hypernuclei are studied and…

核理论 · 物理学 2007-05-23 C. Keil , F. Hofmann , H. Lenske

We propose a new theoretical approach to ground and low-energy excited states of nuclei extending the nuclear mean-field theory. It consists of three steps: stochastic preparation of many Slater determinants, the parity and angular momentum…

核理论 · 物理学 2009-11-11 S. Shinohara , H. Ohta , T. Nakatsukasa , K. Yabana

The structure of the isodoublet hypernuclei, $^{10}_{\Lambda}$B and $^{10}_{\Lambda}$Be within the framework of an $\alpha +\alpha +\Lambda +N$ four-body cluster model is studied. Interactions between the constituent subunits are determined…

核理论 · 物理学 2012-08-03 Emiko Hiyama , Yasuo Yamamoto

New effective $\Lambda N$ interactions are proposed for the density dependent relativistic mean field model. The multidimensionally constrained relativistic mean field model is used to calculate ground state properties of eleven known…

核理论 · 物理学 2021-12-08 Yu-Ting Rong , Zhong-Hao Tu , Shan-Gui Zhou

In this paper, we explore the signature of a simplified model which includes a new singlet scalar state and a vector like quark at future lepton colliders. In particular, we study the production of the new singlet scalar in association with…

高能物理 - 唯象学 · 物理学 2020-06-17 Daruosh Haji Raissi , Seddigheh Tizchang , Mojtaba Mohammadi Najafabadi

We calculated the energy spectra of the neutron-rich He $\Lambda$ hypernuclei with $A=6$ to 9 within the framework of an $\alpha + \Lambda +Xn$ ($X=1$--4) cluster model using the cluster orbital shell model. The employed constituent…

核理论 · 物理学 2023-05-05 Takayuki Myo , Emiko Hiyama

A sequence of photoluminescence spectroscopy based methods are used to rigorously identify and study all the main spectral features (more than thirty emission lines) of site controlled InGaAs/AlGaAs quantum dots (QDs) grown along [111]B in…

The properties of singlet fields in supergravity background are discussed. Particularly, it is shown that the ${\cal{O}}(\Lambda^{2})$ contributions to their one-point function lead to novel derivations of effective scales such as the $\mu$…

高能物理 - 唯象学 · 物理学 2007-05-23 Nir Polonsky

We examined the influence of additional scalar doublet on the parameter space of the Standard Model supplemented with a generation of new vector like leptons. In particular we identified the viable regions of parameter space by inspecting…

高能物理 - 唯象学 · 物理学 2013-05-29 Sumit K. Garg , C. S. Kim

The $\Lambda$ separation energy for $\Lambda$-hypernuclei, denoted $B_\Lambda$, measured in 1967, 1968, and 1973 are recalibrated using the current best mass estimates for particles and nuclei. The recalibrated $B_\Lambda$ are…

核实验 · 物理学 2023-03-20 Peng Liu , Jinhui Chen , Declan Keane , Zhangbu Xu , Yu-Gang Ma

The exchange coupling of the spins of two electrons in double well potentials in a semiconductor background is calculated within the Heitler-London (HL) approximation. Atomic and quantum dot types of confining potentials are considered, and…

介观与纳米尺度物理 · 物理学 2007-05-23 M. J. Calderon , Belita Koiller , S. Das Sarma

We present calculations of ground state properties of spherical, doubly closed-shell nuclei from $^{16}$O to $^{208}$Pb employing the techniques of many-body perturbation theory using a separable density dependent monopole interaction. The…

核理论 · 物理学 2009-11-06 P. Stevenson , M. R. Strayer , J. Rikovska Stone