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相关论文: Symmetric and Antisymmetric Spin-Orbit Forces in Y…

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We investigate the symmetric and anti-symmetric spin-orbit forces (SLS and ALS) of the effective $\Lambda$N interaction derived from a quark cluster model with the instanton-induced interaction (\III), which can reproduce the observed YN…

高能物理 - 唯象学 · 物理学 2009-10-31 Sachiko Takeuchi , Yoshihiro Tani , Makoto Oka

Effects of the spin orbit-force on hadronic systems with strangeness or charm are investigated by a valence quark model with the instanton-induced interaction. By introducing this interaction, the spin-orbit splittings in the…

高能物理 - 唯象学 · 物理学 2009-10-31 Sachiko Takeuchi

I study the effect of scalar and spin-orbit absorption potentials, in the production of a nonzero Sivers-like asymmetry in hadron-hadron high energy collisions (Drell-Yan and single spin asymmetries). A basic model is built for the…

高能物理 - 唯象学 · 物理学 2007-06-21 Andrea Bianconi

Lattice quantum chromodynamics is used to constrain the interactions of two octet baryons at the SU(3) flavor-symmetric point, with quark masses that are heavier than those in nature (equal to that of the physical strange quark mass and…

The short range parts of the strong and weak hyperon-nucleon interactions are studied with quark substructure of the baryons taken into account. A summary of the quark cluster model calculations of the baryon-baryon interactions is…

核理论 · 物理学 2007-05-23 M. Oka , Y. Tani , T. Inoue , K. Sasaki

The spin-orbit interaction and spin-relaxation mechanisms of a shallow InAs quantum well heterostructure are investigated by magnetoconductance measurements as a function of an applied top-gate voltage. The data were fit using the…

介观与纳米尺度物理 · 物理学 2021-12-08 J. D. S. Witt , S. J. Pauka , G. C. Gardner , S. Gronin , T. Wang , C. Thomas , M. J. Manfra , D. J. Reilly , M. C. Cassidy

The quark model description of the hyperon nucleon forces, especially the antisymmetric spin-orbit forces, is studied from the spin-flavor SU(6) and the flavor SU(3) symmetry point of view. It is pointed out that the quark exchange…

高能物理 - 唯象学 · 物理学 2009-10-30 Makoto Oka

Spin-orbit coupling is relatively weak for electrons in bulk silicon, but enhanced interactions are reported in nanostructures such as the quantum dots used for spin qubits. These interactions have been attributed to various dissimilar…

Axion-like particles (ALPs) are predicted to mediate exotic interactions between spin and mass. We propose an ALP-searching experiment based on the levitated micromechanical oscillator, which is one of the most sensitive sensors for…

量子物理 · 物理学 2021-03-09 Fang Xiong , Tong Wu , Yingchun Leng , Rui Li , Changkui Duan , Xi Kong , Pu Huang , Zhengwei Li , Yu Gao , Xing Rong , Jiangfeng Du

An asymmetric triangular potential well provides the simplest model for the confinement of mobile electrons at the interface between two insulating oxides, such as LaAlO_3 and SrTiO_3 (LAO/STO). These electrons have been recently shown to…

介观与纳米尺度物理 · 物理学 2013-06-13 Lorien H. Hayden , R. Raimondi , M. E. Flatte' , G. Vignale

We show that the initial-state interactions from gluon exchange between the incoming quark and the target spectator system lead to leading-twist single-spin asymmetries in the Drell-Yan process. The QCD initial-state interactions produce a…

高能物理 - 唯象学 · 物理学 2009-09-11 Stanley J. Brodsky , Dae Sung Hwang , Ivan Schmidt

Low-energy elastic and inelastic scattering in the Ps(1$s$)-Ps(2$s$) channel is treated in a four-body hyperspherical coordinate calculation. Adiabatic potentials are calculated for triplet-triplet, singlet-singlet, and singlet-triplet spin…

原子物理 · 物理学 2019-08-07 Michael D. Higgins , Kevin M. Daily , Chris H. Greene

We consider the spectroscopy of heavy-quark light-quark mesons with a simple model based on the non-relativistic reduction of vector and scalar exchange between fermions. Four forces are induced: the spin-orbit forces on the light and heavy…

高能物理 - 唯象学 · 物理学 2008-11-26 Robert N. Cahn , J. David Jackson

A phenomenological model for the hyperon-nucleon interactions is constructed by using the quark cluster model approach to the short-distance baryon-baryon interactions. The model contains the SU(3) symmetric meson exchange interaction at…

高能物理 - 唯象学 · 物理学 2009-09-25 Ken-ichiro Ogawa , Sachiko Takeuchi , Makoto Oka

We reexamine the spin-orbit splitting of 9 Lambda Be excited states in terms of the SU_6 quark-model baryon-baryon interaction. The previous folding procedure to generate the Lambda alpha spin-orbit potential from the quark-model Lambda N…

核理论 · 物理学 2009-08-18 Y. Fujiwara , M. Kohno , Y. Suzuki

The quark-model hyperon-nucleon interaction suggests an important antisymmetric spin-orbit component. It is generated from a color analogue of the Fermi-Breit interaction dominating in the one-gluon exchange process between quarks. We…

核理论 · 物理学 2009-10-31 Y. Fujiwara , M. Kohno , T. Fujita , C. Nakamoto , Y. Suzuki

We reconsider a key point in semiconductor physics, the splitting of the valence band states induced by the spin-orbit interaction, through a novel approach which uses neither the group theory formalism, nor the usual…

介观与纳米尺度物理 · 物理学 2019-06-26 Monique Combescot , Shiue-Yuan Shiau , Valia Voliotis

We match the non-relativistic quark model, with both flavor dependent and flavor independent effective quark-quark interactions, to the spin-flavor operator basis of the 1/Nc expansion for the L=1 non-strange baryons. We obtain analytic…

核理论 · 物理学 2016-02-10 Cintia Willemyns , Carlos Schat

A new mechanism for single spin asymmetries in strong interaction is proposed. It is based on instanton-induced nonperturbative chromomagnetic quark-gluon interaction. We estimate the contribution of this interaction to single spin…

高能物理 - 唯象学 · 物理学 2007-05-23 N. I. Kochelev

Lack of inversion symmetry at a metallic surface can lead to an observable spin-orbit interaction. For certain metal surfaces, such as the Au(111) surface, the experimentally observed spin-orbit coupling results in spin rotation lengths on…

介观与纳米尺度物理 · 物理学 2015-05-13 Jamie D. Walls , Eric J. Heller
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