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The electromagnetic form factors of the nucleon are calculated in an extended chiral constituent-quark model where the effective interaction is described by the exchange of pseudoscalar, vector, and scalar mesons. Two-body current-density…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Demetriou , S. Boffi , M. Radici , R. F. Wagenbrunn

We consider the branching ratios and CP asymmetry in the B meson decays into two pseudoscalar mesons in the generalized factorization approximation. We also investigate the possible effects of the enhanced chromomagnetic interaction b --> s…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ji-Ho Jang , Yeong Gyun Kim , Pyungwon Ko

We report a systematic study of nuclear matrix elements (NMEs) in neutrinoless double-beta decays with a state-of-the-art beyond mean-field covariant density functional theory. The dynamic effects of particle-number and angular-momentum…

Nuclear Theory · Physics 2015-03-10 J. M. Yao , L. S. Song , K. Hagino , P. Ring , J. Meng

The rapid progress of hole spin qubits in group IV semiconductors has been driven by their potential for scalability. This is owed to the compatibility with industrial manufacturing standards, as well as the ease of operation and…

Mesoscale and Nanoscale Physics · Physics 2023-04-19 Angus Russell , Alexander Zotov , Ruichen Zhao , Andrew S. Dzurak , M. Fernando Gonzalez-Zalba , Alessandro Rossi

New scheme of definition of g-factors as ground as excited optical states of a paramagnetic ion in zero external constant magnetic field has been proposed and experimentally realized in optical systems in which Zeeman Effect is manifested.…

Materials Science · Physics 2014-12-30 V. N. Lisin , A. M. Shegeda , V. V. Samartsev

The muonium-to-antimuonium transition experiment is about to be updated. Notably, the experiment at J-PARC in Japan can explore the magnetic field dependence of the transition probability. In this paper, we investigate the information that…

High Energy Physics - Phenomenology · Physics 2023-09-06 Takeshi Fukuyama , Yukihiro Mimura , Yuichi Uesaka

Nucleon form factors at high momentum transfer |t| are treated in the framework of generalized parton distributions (GPD's). The possibility of obtaining information about parton high transverse momentum components by application of GPD's…

High Energy Physics - Phenomenology · Physics 2009-11-07 Pau Stoler

We demonstrate the existence of an interference contribution to the average magnetoconductance, G(B), of ballistic cavities and use it to test the semiclassical theory of quantum billiards. G(B) is qualitatively different for chaotic and…

Condensed Matter · Physics 2009-01-23 H. U. Baranger , R. A. Jalabert , A. D. Stone

The study of the magnetic properties of atoms and nuclei was performed. A linear dependence between the strength of the magnetic field at the nucleus and the effective charge divided by the major quantum number were analyzed and explained.…

Atomic Physics · Physics 2024-09-02 Andrzej Tucholski , Zygmunt Patyk

We present a simple empirical parameterization of the x- and t-dependence of generalized parton distributions at zero skewness, using forward parton distributions as input. A fit to experimental data for the Dirac, Pauli and axial form…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Diehl , Th. Feldmann , R. Jakob , P. Kroll

Nonunique factorization in cancellative commutative semigroups is often studied using combinatorial factorization invariants, which assign to each semigroup element a quantity determined by the factorization structure. For numerical…

Commutative Algebra · Mathematics 2018-08-15 Christopher O'Neill

The form factors of the semileptonic $B$, $B_s$ and $B_c$ meson decays are calculated in the framework of the relativistic quark model based on the quasipotential approach in QCD. They are expressed through the overlap integrals of the…

High Energy Physics - Phenomenology · Physics 2022-07-27 R. N. Faustov , V. O. Galkin , Xian-Wei Kang

There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in…

High Energy Physics - Phenomenology · Physics 2009-09-29 C. F. Perdrisat , V. Punjabi , M. Vanderhaeghen

Quantum counting is a key quantum algorithm that aims to determine the number of marked elements in a database. This algorithm is based on the quantum phase estimation algorithm and uses the evolution operator of Grover's algorithm because…

Quantum Physics · Physics 2023-12-11 Gustavo A. Bezerra , Raqueline A. M. Santos , Renato Portugal

In this paper, polarized photoluminescence caused by exciton quasi-equilibrium spin orientation on Zeeman sublevels in an ensemble of quantum dots of different sizes is theoretically studied. It is found that: (i) the splitting of the…

Mesoscale and Nanoscale Physics · Physics 2023-10-04 Lyubov Kotova , Timur Shamirzaev , Vladimir Kochereshko

The spectral form factor of random matrix theory plays a key role in the description of disordered and chaotic quantum systems. While its moments are known to be approximately Gaussian, corrections subleading in the matrix dimension, $D$,…

Quantum Physics · Physics 2026-01-06 Alex Altland , Francisco Divi , Tobias Micklitz , Silvia Pappalardi , Maedeh Rezaei

The gyromagnetic ratio and Pauli form factor are important quantities that characterize the electric and magnetic moment distribution of a particle. The experimentally measured value for the gyromagnetic ratio or the spin g-factor of an…

High Energy Physics - Theory · Physics 2025-09-23 Susobhan Mandal , Subrata Mandal

The fomalism is developed to express nucleon matrix elements of the electromagnetic current in terms of form factors consistent with the translational, rotational, and parity symmetries of a cubic lattice. We calculate the number of these…

High Energy Physics - Lattice · Physics 2012-08-27 LHPC , SESAM Collaborations , : , D. B. Renner , R. Brower , D. Dolgov , N. Eicker , Th. Lippert , J. W. Negele , A. Pochinsky , K. Schilling

The shell structure underlying shape changes in neutron-rich nuclei near N=28 has been investigated by a novel application of the transient field technique to measure the first-excited state g factors in 38S and 40S produced as fast…

In a semiconductor spin qubit with sizable spin-orbit coupling, coherent spin rotations can be driven by a resonant gate-voltage modulation. Recently, we have exploited this opportunity in the experimental demonstration of a hole spin qubit…