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Hyperon-nucleon interactions are important to understand quantum chromodynamics and so-called "hyperon puzzle" of neutron star, but limited by the availability and short-lifetime of hyperon beams, the progress of relevant research is very…

High Energy Physics - Experiment · Physics 2024-06-25 Jielei Zhang

The reaction mechanisms best suited for the production of neutron-rich nuclei, fragmentation and fission, are discussed. Measurements of the production cross sections of reaction residues together with model calculations allow to conclude…

Nuclear Experiment · Physics 2017-08-23 J. Benlliure , K. Helariutta , K. -H. Schmidt , M. V. Ricciardi

The reactions $pp\to p\Lambda K^+$ and $pp\to p\Sigma^0K^+$ are studied near their thresholds. The strangeness production process is described by the $\pi$- and $K$ exchange mechanisms. Effects from the final state interaction in the…

Nuclear Theory · Physics 2009-10-31 A. Gasparian , J. Haidenbauer , C. Hanhart , L. Kondratyuk , J. Speth

We investigate the production of a cascade hyperon (Xi) through the K^- + p --> K^+ (K^0) + Xi^- (Xi^0) reactions, within an effective Lagrangian model where these reactions proceed via excitations of Lambda and Sigma resonance intermediate…

High Energy Physics - Phenomenology · Physics 2015-03-19 R. Shyam , O. Scholten , A. W. Thomas

The reaction mechanisms for $K\Sigma(1385)$ photoproduction from the reaction $\gamma p \to K^+\Sigma^{0}(1385)$ in the resonance energy region are investigated in a hadronic model. Both contributions from $N$ and $\Delta$ resonances of…

Nuclear Theory · Physics 2008-11-26 Yongseok Oh , Che Ming Ko , K. Nakayama

The resonance phenomenon is of central importance in many areas of physics, with particular significance in the study of nuclear structure and reactions. Starting from the classical framework of damped driven oscillations, this text…

Nuclear Theory · Physics 2026-05-06 Sebastian König , Kévin Fossez , Rimantas Lazauskas

The last decade has witnessed great experimental progress that has led to measurements of cross sections--polarized as well as unpolarized--of of high accuracy in several $NN \to NNx$ reaction channels. These data, naturally, pose…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. Hanhart

The pi+ d scattering and the d(p,n) charge exchange reaction are used to study the Delta-Nucleon interaction in the Delta resonance energy region. Various observables, such as inclusive and exclusive cross sections, angular distributions,…

Nuclear Theory · Physics 2011-03-17 C. A. Mosbacher , F. Osterfeld

The isobar model and the resonance model are applied for the first analysis of the subthreshold $K^+$-meson production in proton-carbon collisions, which was perfomed at GSI at an emission angle of 40 degrees and a bombarding energy of 1.2…

Nuclear Theory · Physics 2007-05-23 A. Sibirtsev , K. Tsushima , Amand Faessler

In this paper, we develop a general framework to study the meson-photoproductions of nucleons in the chiral quark model. The S and U channel resonance contributions are expressed in terms of the Chew-Goldberger-Low-Nambu (CGLN) amplitudes.…

High Energy Physics - Phenomenology · Physics 2016-09-01 Zhenping Li

Resonance production is one of the key observables to study the dynamics of high-energy collisions. In dense systems created in heavy nucleus-nucleus collisions, the properties of some of them (widths, masses, branching ratios) were…

Nuclear Experiment · Physics 2024-10-01 Bartosz Kozłowski

The $K^- d \to \pi YN$reaction is theoretically studied so as to investigate the $K^{-}$-induced production of the hyperon resonances $\Sigma (1385)$ and $\Lambda (1405)$. For this purpose we take into account the p-wave amplitudes for the…

Nuclear Theory · Physics 2016-06-21 J. Yamagata-Sekihara , T. Sekihara , D. Jido

We investigate the $A(p,K^+){_\Lambda}B$ reaction within a covariant two nucleon model. We focus on amplitudes which are described by creation, propagation and decay into relevant channel of $N^*$(1650), $N^*$(1710), and $N^*$(1720)…

Nuclear Theory · Physics 2009-11-11 R. Shyam , H. Lenske , U. Mosel

Recent developments on a dynamical coupled-channels model of hadronic and electromagnetic production of nucleon resonances are summarized.

Nuclear Theory · Physics 2009-01-08 B. Julia-Diaz

Production of pions in proton-nucleus (p+A) reactions outside of a kinematical boundary of proton-nucleon collisions, the so-called cumulative effect, is studied. The kinematical restrictions on pions emitted in backward direction in the…

Nuclear Theory · Physics 2018-01-26 A. Motornenko , M. I. Gorenstein

The properties of strange mesons ($K$, $\bar K$ and $\bar K^*$) in dense matter are studied using a unitary approach in coupled channels for meson-baryon scattering. The kaon-nucleon interaction incorporates $s$- and $p$-wave contributions…

Nuclear Theory · Physics 2011-03-10 L. Tolos , D. Cabrera , R. Molina , E. Oset , A. Ramos

The reactions of $K \Sigma(1385)$ photoproduction, i.e., $\gamma p \to K^+ \Sigma^0(1385)$ and $\gamma n \to K^+ \Sigma^-(1385)$, are investigated in the resonance energy region for studying the role of the nucleon and $\Delta$ resonances…

Nuclear Theory · Physics 2015-05-20 Yongseok Oh

An effective Lagrangian model in a coupled channels framework is applied to extract nucleon resonance parameters. In the K-matrix approximation, we simultaneously analyze all the available data for the transitions from pi N to five possible…

Nuclear Theory · Physics 2007-05-23 A. Waluyo , C. Bennhold , H. Haberzettl , G. Penner , U. Mosel , T. Mart

New facilities to measure neutrino-nucleus cross sections, such as those possible in conjunction with spallation neutron sources, could provide an experimental foundation for the many neutrino-nucleus weak interaction rates needed in…

Astrophysics · Physics 2008-11-26 W. R. Hix , A. Mezzacappa , O. E. B. Messer , S. W. Bruenn

We report on reactions producing two pions induced by real and virtual photons or nucleons. The role of different resonances in these reactions is emphasized. Novel results on coherent two pion photoproduction in nuclei are also reported.

Nuclear Theory · Physics 2011-04-15 E. Oset , J. A. Gomez Tejedor , F. Cano , J. C. Nacher , S. Kamalov , L. Alvarez-Ruso , E. Hernandez