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相关论文: Enhanced Tensor-Force Contribution in Collision Dy…

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We propose two new sources of a substantial tensor polarization of sea partons in the deuteron: the diffractive nuclear shadowing which depends on the alignment of nucleons in the polarized deuteron and the nuclear excess of pions in the…

高能物理 - 唯象学 · 物理学 2016-09-06 N. N. Nikolaev , W. Schaefer

The transverse polarization of $\Lambda$ hyperons within unpolarized jets originates from the transverse-momentum-dependent (TMD) fragmentation function $D_{1T}^\perp (z, p_T, \mu^2)$. In the vacuum environment, the QCD evolution of this…

高能物理 - 唯象学 · 物理学 2026-01-12 Xin-yu Qin , Yu-Kun Song , Shu-yi Wei

It is shown that the magnitude of tensor polarization of the deuteron beam, which arises owing to the spin dichroism effect, depends appreciably on the angular width of the detector that registers the deuterons transmitted through the…

高能物理 - 唯象学 · 物理学 2015-06-05 V. G. Baryshevsky , A. R. Bartkevich

A generalized Frenkel condition is proposed for use in spin hydrodynamics to relate the spin density and spin polarization (or spin chemical potential) tensors. It allows for independent treatment of electric- and magnetic-like components…

高能物理 - 唯象学 · 物理学 2024-01-17 Asaad Daher , Wojciech Florkowski , Radoslaw Ryblewski

The influence of the chiral mean field on the kaon dynamics in heavy ion reactions is investigated. Inside the nuclear medium the kaons are described as dressed quasi-particles carrying effective masses and momenta. A momentum dependent…

核理论 · 物理学 2009-10-31 C. Fuchs , D. S. Kosov , Amand Faessler , Z. S. Wang , T. Waindzoch

The influence of tensor forces on hyperfine splitting and decay widths of mesons are investigated within the limits of quasirelativistic potential quark model. As the starting the system of the Rarita-Schwinger equations is used. We use a…

高能物理 - 唯象学 · 物理学 2007-05-23 I. Haysak , V. Morokhovych , S. Chalupka , M. Salak

Following the recent studies of the trickiness in spin and orbital angular momentum of the vector gauge fields, we perform here a parallel analysis for the tensor gauge field, which has certain relation to gravitation. Similarly to the…

高能物理 - 理论 · 物理学 2011-06-01 Xiang-Song Chen , Ben-Chao Zhu , Niall Ó Murchadha

We study the effect of spin-orbit interaction and in-plane effective magnetic field on the conductance of a quasi-one-dimensional ballistic electron system. The effective magnetic field includes the externally applied field, as well as the…

介观与纳米尺度物理 · 物理学 2010-10-12 Yuriy V. Pershin , James A. Nesteroff , Vladimir Privman

A phenomenological description of single transverse spin effects in hadron-hadron inclusive processes is proposed, assuming a generalized factorization scheme and pQCD hard interactions. The transverse momentum, k_T, of the quarks inside…

高能物理 - 唯象学 · 物理学 2008-11-26 Mauro Anselmino , Maria Boglione , Francesco Murgia

In this paper we calculate the contribution to the ponderomotive force in a plasma from the electron spin using a recently developed model. The spin-fluid model used in the present paper contains spin-velocity correlations, in contrast to…

等离子体物理 · 物理学 2015-05-20 M. Stefan , J. Zamanian , G. Brodin , A. P. Misra , M. Marklund

We give a brief overview on global polarization and spin alignment in heavy ion collisions. The current theoretical understandings on global polarization of hyperons and the global spin alignment of vector mesons are summarized.

核理论 · 物理学 2024-01-30 Wen-Bo Dong , Xin-Li Sheng , Yi-Liang Yin , Qun Wang

We compute the leading Post-Newtonian (PN) contributions at quadratic order in the spins to the radiation-reaction acceleration and spin evolution for binary systems, entering at four-and-a-half PN order. Our calculation includes the…

广义相对论与量子宇宙学 · 物理学 2017-11-08 Natália T. Maia , Chad R. Galley , Adam K. Leibovich , Rafael A. Porto

The total angular momentum is conserved in the evolution of the Quark-Gluon Plasma (QGP) created in heavy-ion collision, and consists of two sectors: the orbital angular momentum (OAM) caused by kinetic motion, and the spin, an intrinsic…

核理论 · 物理学 2021-02-03 Shuzhe Shi , Charles Gale , Sangyong Jeon

For certain non-magnetic solids with low symmetry the occurrence of spin-polarized longitudinal currents is predicted. These arise due to an interplay of spin-orbit interaction and the particular crystal symmetry. This result is derived…

介观与纳米尺度物理 · 物理学 2015-07-08 S. Wimmer , M. Seemann , K. Chadova , D. Ködderitzsch , H. Ebert

By associating a spin-orbit interaction with a non-Abelian gauge potential, we theoretically present a spin polarization in a quite general form using an effective Yang-Mills field and a usual electromagnetic field. In this gauge invariant…

介观与纳米尺度物理 · 物理学 2013-09-18 Akihito Takeuchi , Naoto Nagaosa

We present a comprehensive analysis of the dynamic process of quark spin polarization induced by magnetic fields at the pre-thermal stage in heavy-ion collisions by using the recently developed theoretical tool of chiral kinetic theory. Our…

核理论 · 物理学 2024-12-10 Anping Huang , Zilin Yuan , Mei Huang

In this short note I speculate on some consequences of the high energy collision picture in which the orbital angular momentum of the colliding hadrons can be converted into secondary particle angular spin momentum via some spin-orbital…

核理论 · 物理学 2007-05-23 Sergei A. Voloshin

The special role played by singly polarized high-energy hadron-hadron collisions in Spin Physics is discussed: In such processes, the measured and the calculated quantities can be and have been directly compared with each other --- without…

高能物理 - 唯象学 · 物理学 2007-05-23 Meng Ta-chung

In non-central relativistic heavy ion collisions, the created matter possesses a large initial orbital angular momentum. Particles produced in the collisions could be polarized globally in the direction of the orbital angular momentum due…

核理论 · 物理学 2018-03-15 Shaowei Lan , Zi-Wei Lin , Shusu Shi , Xu Sun

Nonequilibrium electron spin polarization is calculated under spin injection from one ferromagnet to another in magnetic junction. It is shown that the nonequilibrium spin polarization can be comparable with equilibrium one if the material…

材料科学 · 物理学 2007-05-23 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman , A. I. Krikunov