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Kaon photo- and electroproduction in all six isospin channels are investigated by means of an isobaric model. It is found that existing models can only partially describe the current experimental data. Moreover, the extracted coupling…

Nuclear Theory · Physics 2007-05-23 T. Mart , C. Bennhold , L. Alfieri

Kaon photo- and electroproduction off a proton near the production threshold are investigated by utilizing an isobar model. The background amplitude of the model is constructed from Feynman diagrams, whereas the resonance term is calculated…

Nuclear Theory · Physics 2011-01-19 T. Mart

An instrument of central importance for the strangeness photo- and electroproduction at the 1.5-GeV electron beam of the MAMI accelerator at the Institut f\"ur Kernphysik in Mainz, Germany, is the newly installed magnetic spectrometer Kaos…

Nuclear Experiment · Physics 2019-08-14 Patrick Achenbach

The kaon photoproduction is analyzed up to $E_\gamma^{\rm Lab}$=2.0 GeV by using an isobaric model based on effective Lagrangians and by taking a cross symmetry into account. Both {\it pseudovector} and {\it pseudoscalar} couplings for…

Nuclear Theory · Physics 2009-10-31 Bong Soo Han , Myung Ki Cheoun , K. S. Kim , Il-Tong Cheon

Isobar models for the electromagnetic production of kaons are discussed with emphasis on the K^+ photoproduction at very small kaon angles and K^0 photoproduction on deuteron. Distorted-wave impuls approximation calculations of the cross…

Nuclear Theory · Physics 2013-11-05 Petr Bydzovsky , Miloslav Sotona

The formation and excitation of hypernuclei through kaon photoproduction is reviewed. Basic features of the production process are emphasized. The possibility of extracting new information on hypernuclear structure and on the wave function…

Nuclear Theory · Physics 2009-10-30 C. Bennhold , F. X. Lee , T. Mart , L. E. Wright

Kaon photoproduction on the proton is studied in the resonance region using an isobar model. The higher-spin nucleon (3/2 and 5/2) and hyperon (3/2) resonances were included in the model utilizing the consistent formalism by Pascalutsa and…

Nuclear Theory · Physics 2016-02-23 Dalibor Skoupil , Petr Bydzovsky

Kaon photo- and electroproduction off the nucleon is investigated in the framework of an isobaric model up to energies of about 1 GeV above threshold for all six isospin channels. The hadronic coupling constants in the model are determined…

Nuclear Theory · Physics 2007-05-23 C. Bennhold , T. Mart , D. Kusno

Kaon photoproductions on the proton gamma p --> K+Sigma0 and gamma p --> K0Sigma+ have been simultaneously analyzed by using isobar models and new SAPHIR data. The result shows that isobar models such as KAON MAID require more resonances in…

Nuclear Theory · Physics 2007-05-23 T. Mart

The study of hyperon resonances has entered a new era of precision with advent of high-statistics photoproduction data from the CLAS detector at Jefferson Lab. These data have multi-particle final states, allowing clean identification of…

Nuclear Experiment · Physics 2015-05-20 K. Hicks , D. Keller , W. Tang

The electroproduction of kaon on proton has been studied using two covariant isobar models. The models incorporate propagators and vertex factors developed in our previous works. In total, the current study includes 26 nucleon resonances…

High Energy Physics - Phenomenology · Physics 2025-07-11 Jovan Alfian Djaja , Terry Mart

New kaon photoproduction data on a proton, gamma + p --> K+ + Lambda, are analyzed using a multipole approach. The background terms are given in terms of gauge invariant, crossing symmetric, Born diagrams with hadronic form factors, while…

Nuclear Theory · Physics 2017-08-23 T. Mart , A. Sulaksono , C. Bennhold

Some basic properties of isobar models are discussed using the Saclay-Lyon, Kaon-MAID, and H2 models and a comparison of their predictions with experimental data is given for photo- and electroproduction of $K^+$ on the proton and for…

Nuclear Theory · Physics 2013-11-04 Petr Bydzovsky , Dalibor Skoupil

Developments in strangeness photo- and electro- production off the proton, as investigated using the CLAS system in Hall B at Jefferson Lab, are discussed in this paper. By measuring sufficient spin observables one can decompose the…

Nuclear Experiment · Physics 2011-02-01 Reinhard Schumacher

Nucleon resonances are investigated through the electromagnetic production of K-mesons. We study the kaon photoproduction process at tree-level and compare to a recently developed unitary K-matrix approach. Employing hadronic form factors…

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

Some basic properties of isobar models are demonstrated and discussed on examples of the Saclay-Lyon and Kaon-MAID models. Predictions of these models are compared with experimental data for various processes and kinematical regions.…

Nuclear Theory · Physics 2014-01-24 Petr Bydzovsky , Dalibor Skoupil

Isobar models for the electromagnetic production of K+ and K0 are discussed with emphasis on the K0 photoproduction off neutron. Predictions of the models for the K0 photoproduction on deuteron are compared with the recent data and some…

Nuclear Theory · Physics 2011-02-18 P. Bydzovsky

Cross section measurements of the exclusive p(e,e'K+)Lambda,Sigma^0 electroproduction reactions have been performed at the Mainz Microtron MAMI in the A1 spectrometer facility using for the first time the Kaos spectrometer for kaon…

Exclusive data on both the elementary kaon and antikaon production channels have been taken at the cooler synchrotron COSY in proton-proton scattering. In the kaon--hyperon production an enhancement by one order of magnitude of the…

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
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