中文
相关论文

相关论文: Compound and quasi-compound states in low-energy s…

200 篇论文

Recent lattice QCD results for the low-lying odd-parity excitations of the nucleon near the $N^{*}(1535)$ and $N^{*}(1650)$ resonance positions have revealed that the lattice QCD states have magnetic moments consistent with predictions from…

高能物理 - 格点 · 物理学 2023-06-02 Curtis D. Abell , Derek B. Leinweber , Zhan-Wei Liu , Anthony W. Thomas , Jia-Jun Wu

We present a study on the charge current quasi elastic scattering of $\nu_\mu$ from nucleon and nuclei which gives a charged muon in the final state. To describe nuclei, the Fermi Gas model has been used with proposed Pauli suppression…

高能物理 - 唯象学 · 物理学 2017-09-13 Kapil Saraswat , Prashant Shukla , Vineet Kumar , Venktesh Singh

A new method of pseudo-state discretization is proposed for the method of continuum discretized coupled channels (CDCC) to deal with three-body breakup processes. We propose real- and complex-range Gaussian bases for the pseudo-state wave…

核理论 · 物理学 2009-11-10 T. Matsumoto , T. Kamizato , K. Ogata , Y. Iseri , E. Hiyama , M. Kamimura , M. Yahiro

We present quasi-elastic neutrino-nucleus cross sections in the energy range from 150 MeV up to 5 GeV for the target nuclei 12C and 56Fe. A relativistic description of the nuclear dynamics and the neutrino-nucleus coupling is adopted. For…

核理论 · 物理学 2009-11-11 M. C. Martinez , P. Lava , N. Jachowicz , J. Ryckebusch , K. Vantournhout , J. M. Udias

We present our latest calculations of $K^-$-nuclear quasi-bound states using a self-consistent scheme for constructing $K^-$-nuclear potentials from various subthreshold chirally inspired $\bar{K}N$ scattering amplitudes. We consider…

核理论 · 物理学 2016-12-14 J. Hrtánková , A. Cieplý , J. Mareš

Astrophysical S-factors of radiative capture reactions on light nuclei have been calculated in a two-cluster potential model, taking into account the separation of orbital states by the use of Young schemes. The local two-body potentials…

核理论 · 物理学 2012-04-12 Sergey Dubovichenko , Albert Dzhazairov-Kakhramanov

We use contracted spin-flavor symmetry which emerges in the large Nc limit of QCD to obtain relations between proton-proton and proton-neutron total cross sections for both polarized and unpolarized scattering. The formalism used is valid…

核理论 · 物理学 2013-05-30 Thomas D. Cohen , Boris A. Gelman

The low-energy properties of the elastic $s-$wave scattering for the $n-^{19}$C are studied near the critical condition for the occurrence of an excited Efimov state in $n-n-^{18}$C. It is established to which extent the universal scaling…

核理论 · 物理学 2016-11-28 M. A. Shalchi , M. T. Yamashita , M. R. Hadizadeh , T. Frederico , Lauro Tomio

We perform a coupled-channels study of the low-lying states in $^{13,15,17,19}_{~~~~~~~~~~~~~~~~~~~~~\Lambda}$C with a covariant energy density functional based microscopic particle-core coupling model. The energy differences of $1/2^-$ and…

核理论 · 物理学 2017-05-16 H. Xia , H. Mei , J. M. Yao

The collective modes observed in the loop-current ordered state in under-doped cuprates by polarized neutron scattering require that the ground state is a linear combination in each unit-cell of the four basis states which are the possible…

强关联电子 · 物理学 2015-06-04 Yan He , C. M. Varma

With the aim at quantitatively investigating the longstanding problem concerning the effect of short range nucleon-nucleon correlations on scattering processes at high energies, the total neutron-nucleus cross section is calculated within a…

核理论 · 物理学 2008-11-26 M. Alvioli , C. Ciofi degli Atti , I. Marchino , V. Palli , H. Morita

A quantitative understanding of the weak nuclear response is a prerequisite for the analyses of neutrino experiments such as K2K and MiniBOONE, which measure energy and angle of the muons produced in neutrino-nucleus interactions in the…

高能物理 - 唯象学 · 物理学 2009-11-11 Omar Benhar , Nicola Farina , Hiroki Nakamura , Makoto Sakuda , Ryoichi Seki

The discrete energy-eigenvalues of two nucleons interacting with a finite-range nuclear force and confined to a harmonic potential are used to numerically reconstruct the free-space scattering phase shifts. The extracted phase shifts are…

核理论 · 物理学 2014-11-21 Thomas Luu , Martin Savage , Achim Schwenk , James P. Vary

Neutrino scattering at low energies is essential for a variety of timely applications potentially having fundamental implications, e.g. unraveling unknown neutrino properties, such as the third neutrino mixing angle, the detection of the…

高能物理 - 唯象学 · 物理学 2010-01-15 Cristina Volpe

We present a continuum random phase approximation approach to study electron- and neutrino-nucleus scattering cross sections, in the kinematic region where quasielastic scattering is the dominant process. We show the validity of the…

核理论 · 物理学 2015-08-07 V. Pandey , N. Jachowicz , T. Van Cuyck , J. Ryckebusch , M. Martini

We employ the constrained density functional theory to investigate cluster phenomena for the $^{12}$C nucleus. The proton and neutron densities are generated from the placement of three $^{4}$He nuclei (alpha particles) geometrically. These…

核理论 · 物理学 2023-06-28 A. S. Umar , K. Godbey , C. Simenel

Inspired by the recent observation of a narrow resonance-like structure around 2360 MeV in the p+n to d + \pi 0 + \pi 0 cross section, the possibility of forming a NN*(1440) quasi-molecular state is investigated by using a meson exchange…

高能物理 - 唯象学 · 物理学 2015-06-15 Lu Zhao , Peng-Nian Shen , Ying-Jie Zhang , Bing-Song Zou

A new approach for describing the effective electronic states of "atoms in compounds" to study the properties of molecules and condensed matter which are circumscribed by the operators heavily concentrated in atomic cores is proposed. Among…

化学物理 · 物理学 2014-12-02 Anatoly V. Titov , Yuriy V. Lomachuk , Leonid V. Skripnikov

Motivated by the last experimental and theoretical advances in the analysis of possible baryonium resonances, the $X(1835)$ and their partners, we perform a constituent-quark-model based coupled-channels calculation of the proton-antiproton…

高能物理 - 唯象学 · 物理学 2024-10-17 P. G. Ortega , D. R. Entem , F. Fernandez , J. Segovia

We review the relevance of neutrino-nucleus interactions at energy transfers below 100 MeV for accelerator-based experiments, experiments at lower energies and for astrophysical neutrinos. The impact of low-energy scattering processes in…

核理论 · 物理学 2019-08-07 Natalie Jachowicz , Nils Van Dessel , Alexis Nikolakopoulos