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The operator product expansion (OPE) is applied in conjunction with Pionless effective field theory to study the short-rang structure of nuclei. By matching the OPE with the selected nuclear potentials for nucleon-nucleon scattering states,…

Nuclear Theory · Physics 2025-07-29 Jiexin Yu , Bingwei Long

We calculate a new equation of state for baryons at sub-nuclear densities meant for the use in core-collapse simulations of massive stars. The abundance of various nuclei is obtained together with the thermodynamic quantities. The…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Shun Furusawa , Shoichi Yamada , Kohsuke Sumiyoshi , Hideyuki Suzuki

We propose to investigate short-range correlations (SRCs) in nuclei by studying sub and near-threshold photoproduction of $\phi$-meson. The feasibility of exploring this nuclear structure in electron-positron collision experiments such as…

High Energy Physics - Phenomenology · Physics 2025-12-30 Wei Wang , Ji Xu , Xing-Hua Yang , Ya-Teng Zhang , Shuai Zhao

A model for the nucleon-antinucleon interaction is presented which is based on meson-baryon dynamics. The elastic part is the $G$-parity transform of the Bonn $NN$ potential. Annihilation into two mesons is described in terms of microscopic…

Nuclear Theory · Physics 2008-11-26 V. Mull , K. Holinde

We study the scattering of a pseudoscalar meson off one ground state octet baryon in covariant baryon chiral perturbation theory (BChPT) up to the next-to-next-to-leading order. The inherent power counting breaking terms are removed within…

Nuclear Theory · Physics 2019-04-03 Jun-Xu Lu , Li-Sheng Geng , Xiu-Lei Ren , Meng-Lin Du

The lower excitation spectrum of the nucleon and $\Delta$ is calculated in a relativistic chiral quark model. Contributions of the second order self-energy and exchange diagrams due-to pion fields to the mass spectrum of the SU(2) baryons…

High Energy Physics - Phenomenology · Physics 2009-11-10 E. M. Tursunov

$\Delta$ isobar components in the nuclear many-body wave function are investigated for the deuteron, light nuclei (${}^{16}O$) and infinite nuclear matter within the framework of the coupled-cluster theory. The predictions derived for…

Nuclear Theory · Physics 2009-11-07 T. Frick , S. Kaiser , H. Müther , A. Polls

We investigate the strong coupling constants for the baryon octet-octet, decuplet-octet, and decuplet-decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects…

High Energy Physics - Phenomenology · Physics 2018-10-17 Ghil-Seok Yang , Hyun-Chul Kim

The octet and decuplet SU(3)f baryons are studied with the Polyakov, Nambu and Jona-Lasinio model, in a diquark-quark approach, via the resolution of the Bethe-Salpeter equation. This work includes estimations of their masses according to…

High Energy Physics - Phenomenology · Physics 2026-02-10 Eric Blanquier

The strangeness-changing ($\Delta S = 1$) weak baryon-baryon interaction is studied through the nonmesonic weak decay of double-$\Lambda$ hypernuclei. Besides the usual nucleon-induced decay $\Lambda N \to N N$ we discuss novel…

Nuclear Theory · Physics 2009-11-07 A. Parreno , A. Ramos , C. Bennhold

Nucleon decays into a lepton and two pseudoscalar mesons represent key channels for probing baryon number violation, complementing conventional two-body modes. In this Letter, we model-independently correlate two- and three-body processes…

High Energy Physics - Phenomenology · Physics 2026-04-28 Wei-Qi Fan , Yi Liao , Xiao-Dong Ma

An extended version of the Cascade-Exciton Model (CEM) of nuclear reactions is applied to analyze nucleon-induced fission cross sections for Bi-209 and Pb-208 nuclei in the 45-500 MeV energy range. The available data on linear momentum…

Nuclear Theory · Physics 2007-05-23 A. V. Prokofiev , S. G. Mashnik , A. J. Sierk

We present a new model for the hyperon-nucleon (Lambda N, Sigma N) interaction, derived within the meson exchange framework. The model incorporates the standard one boson exchange contributions of the lowest pseudoscalar and vector meson…

Nuclear Theory · Physics 2014-11-18 J. Haidenbauer , W. Melnitchouk , J. Speth

Experimental data on total and differential elastic cross sections for $p+p(\bar{p})$, $n+p(\bar{p})$, $K^\pm+p$, $K^\pm+n$, $\pi^\pm+p$ starting from energy 3.5 GeV in CMS are used to determine parameters of vacuum contribution and…

High Energy Physics - Phenomenology · Physics 2010-10-27 N. V. Radchenko , A. V. Dmitriev

The nu-e-bar electron elastic scattering cross-section was measured with a CsI(Tl) scintillating crystal detector array with a total mass of 187 kg at the Kuo-Sheng Nuclear Power Station. The detectors were exposed to a reactor nu-e-bar…

High Energy Physics - Experiment · Physics 2019-08-13 Muhammed Deniz , Selcuk Bilmis , Henry T. Wong

The prospects of extracting new physics signals in coherent elastic neutrino--nucleus scattering (CE$\nu$NS) processes are limited by the precision with which the underlying nuclear structure physics, embedded in the weak nuclear form…

Nuclear Theory · Physics 2023-04-27 N. Van Dessel , V. Pandey , H. Ray , N. Jachowicz

Extending earlier investigations, we analyze the quasi-elastic scattering of strongly interacting electroweak bosons at high-energy e+-e- colliders. The three processes e+e- -> bar-nu nu W+W-, bar-nu nu ZZ, and e-e- -> W-W- are examined at…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. Boos , H. -J. He , W. Kilian , A. Pukhov , C. -P. Yuan , P. M. Zerwas

A refined investigation on light flavor meson-baryon scatterings is performed using a dynamical coupled-channel approach, the J\"ulich-Bonn model, that respects unitartiy and analyticity constraints. The channel space of $\pi N$, $\pi…

Nuclear Theory · Physics 2022-12-07 Yu-Fei Wang , Deborah Rönchen , Ulf-G. Meißner , Yu Lu , Chao-Wei Shen , Jia-Jun Wu

Extensive elastic scattering data measured at energies around 10 to 20 MeV/nucleon for some identical systems, like 12C+12C and 16O+16O, exhibit the nuclear rainbow pattern of broad Airy oscillations of the cross section at medium and large…

Nuclear Theory · Physics 2024-06-13 Nguyen Tri Toan Phuc , Nguyen Hoang Phuc , Dao T. Khoa

The structures, the electromagnetic transitions, and the beta decay strengths of exotic nuclei are investigated within an extended cluster model. We start by deriving an effective nuclear Hamiltonian within the $S_2$ correlation operator.…

Nuclear Theory · Physics 2017-08-23 M. Tomaselli , T. Kühl , D. Ursescu , S. Fritzsche
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