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Related papers: Photoproduction of $\Lambda(1520)$ hyperons from n…

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In the framework of the nuclear spectral function approach for incoherent primary proton-nucleon and secondary pion-nucleon production processes we study the inclusive Lambda(1520) hyperon production in the interaction of 2.83 GeV protons…

Nuclear Theory · Physics 2011-11-10 E. Ya. Paryev

We study the pion-induced inclusive $\Lambda(1520)$ hyperon production from nuclei near threshold within a nuclear spectral function approach accounting for incoherent primary $\pi^-$ meson--proton ${\pi^-}p \to K^0\Lambda(1520)$ production…

Nuclear Theory · Physics 2019-10-23 E. Ya. Paryev , Yu. T. Kiselev

Using results of a recent calculation of the $\Lambda(1520)$ in the nuclear medium, which show that the medium width is about five times the free width, we study the A dependence of the $\Lambda(1520)$ production cross section in the…

Nuclear Theory · Physics 2009-11-11 M. Kaskulov , L. Roca , E. Oset

We investigate the reaction mechanism of $K^0 \Lambda$ photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, in the range of $W\approx 1.6-2.2$ GeV. We employ an effective Lagrangian method at the tree-level Born…

High Energy Physics - Phenomenology · Physics 2020-01-08 Sang-Ho Kim , Hyun-Chul Kim

We study the photoproduction of $\eta^\prime$ mesons from nuclei near the threshold within the collision model based on the nuclear spectral function. The model takes properly into account both primary photon-nucleon and secondary…

Nuclear Theory · Physics 2015-06-11 E. Ya. Paryev

We study the mechanism of the associated Lambda-kaon and Sigma-kaon production in nucleon-nucleon collisions over an extended range of near threshold beam energies within an effective Lagrangian model, to understand of the new data on pp…

Nuclear Theory · Physics 2009-11-11 Radhey Shyam

Differential cross sections and photon-beam asymmetries for the gamma p -> K+ Lambda(1520) reaction have been measured with linearly polarized photon beams at energies from the threshold to 2.4 GeV at 0.6<cos(theta)<1. A new bump structure…

We analyze an effect of the coherent $\Theta^+\Lambda(1520)$ photoproduction in $\gamma D$ interaction near the threshold. We demonstrate that the coherence effect becomes manifest in a comparison of the $nK^+$ invariant mass distribution…

Nuclear Theory · Physics 2014-11-18 A. I. Titov , B. Kampfer , S. Daté , Y. Ohashi

We investigate the reaction of $\gamma N \to K \bar{K} N$ focusing on the photoproduction of $\Lambda(1520)$ and putative exotic $\Theta(1540)$. We consider various background production mechanisms including the production of vector mesons,…

High Energy Physics - Phenomenology · Physics 2017-08-23 Yongseok Oh , K. Nakayama , T. -S. H. Lee

The reaction $ep \to e'K^+\Lambda(1520)$ with $\Lambda(1520) \to p'K^-$ was studied at electron beam energies of 4.05, 4.25, and 4.46 GeV, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cos$\theta_{K^+}$,…

High Energy Physics - Experiment · Physics 2010-04-06 S. P. Barrow

We investigate photoproduction of $\phi$-mesons off protons within a coupled-channel effective-Lagrangian method which is based on the K-matrix approach. Since the threshold energy of the $K\Lambda(1520)$ channel is close to that of $\phi…

High Energy Physics - Phenomenology · Physics 2014-11-18 S. Ozaki , H. Nagahiro , A. Hosaka , O. Scholten

Photoproduction of $\Lambda$(1520) with liquid hydrogen and deuterium targets was examined at photon energies below 2.4 GeV in the SPring-8 LEPS experiment. For the first time, the differential cross sections were measured at low energies…

We study the near-threshold inclusive photoproduction of $\Xi^-$ hyperons off $^{12}$C and $^{184}$W target nuclei within a first-collision model relying on the nuclear spectral function and including incoherent $\Xi^-$ production in direct…

Nuclear Theory · Physics 2021-11-30 E. Ya. Paryev

We report the measurement of the $\gamma p \rightarrow K^{+}\Lambda$ and $\gamma p \rightarrow K^{+}\Sigma^{0}$ reactions at SPring-8. The differential cross sections and photon-beam asymmetries are measured at forward $K^{+}$ production…

We investigate the $\Lambda(1520)$ photo-production in the $\vec{\gamma} p \to K^+ \Lambda(1520)$ reaction within the effective Lagrangian method near threshold. In addition to the "background" contributions from the contact, $t-$channel…

Nuclear Theory · Physics 2010-10-27 Ju-Jun Xie , J. Nieves

We study the photoproduction of the ^12{_Lambda}B hypernucleus within a fully covariant effective Lagrangian based model, employing Lambda bound state spinors derived from the latest quark-meson coupling model. The kaon production vertex is…

Nuclear Theory · Physics 2010-10-27 R. Shyam , K. Tsushima , A. W. Thomas

The first observation of coherent $\phi$(1020) meson photoproduction off heavy nuclei is presented using ultraperipheral lead-lead collisions at a center-of-mass energy per nucleon pair of 5.36 TeV. The data were collected by the CMS…

Nuclear Experiment · Physics 2026-01-14 CMS Collaboration

We investigate the photoproduction of $\Lambda(1405)\equiv\Lambda^*$ hyperon resonance, i.e., $\gamma p\to K^+\Lambda^*$, employing the effective Lagrangian approach with the $t$-channel Regge trajectories at tree level. We extensively…

High Energy Physics - Phenomenology · Physics 2017-07-19 Sang-Ho Kim , Seung-il Nam , Daisuke Jido , Hyun-Chul Kim

We investigate kaon photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, focusing on the role of nucleon resonances given in the Review of Particle Data Group in the range of $\sqrt{s} \approx 1600 - 2200$ MeV. We…

High Energy Physics - Phenomenology · Physics 2018-10-17 Sang-Ho Kim , Hyun-Chul Kim

We study the reaction mechanism of K*Lambda(1116) photoproduction off the proton target near threshold considering the contributions from nucleon-resonances. Employing the effective Lagrangian method at the tree-level Born approximation, we…

High Energy Physics - Phenomenology · Physics 2015-05-30 Sang-Ho Kim , Seung-il Nam , Yongseok Oh , Hyun-Chul Kim
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