Related papers: Hyperon Photo and Electro Production at CLAS

Model Analysis of the $ep \to ep'\pi^+\pi^-$ Electroproduction Reaction on the Proton

Recent CLAS data on the $p\pi^+\pi^-$ electroproduction off protons at 1.3$<$W$<$1.57 GeV and 0.25$<$$Q^{2}$$<$0.6 GeV$^{2}$ have been analyzed using a meson-baryon phenomenological model. By fitting nine 1-fold differential cross section…

High Energy Physics - Phenomenology · Physics 2009-11-06 Viktor Mokeev , Volker Burkert , Tsung-Shung H. Lee , Latifa Elouadrhiri , Gleb Fedotov , Boris Ishkhanov

K-Long Facility for JLab and its Scientific Potential

Our main interest in creating a secondary high-quality KL-beam is to investigate hyperon spectroscopy through both formation and production processes. We propose to study two-body reactions induced by the KL-beam on the proton target. The…

Nuclear Experiment · Physics 2016-12-21 Igor I. Strakovsky

$\Xi$ spectroscopy in photoproduction on a proton target at Jefferson Lab

The CLAS Collaboration at Jefferson Lab conducted a photoproduction experiment on a proton target using a tagged photon beam with an energy range of 1.5-3.8 GeV during May-July 2004. With an integrated luminosity of about 75 $pb^{-1}$, this…

High Energy Physics - Experiment · Physics 2019-08-14 L. Guo , D. P. Weygand

Photoproduction of $\eta$ mesons off the proton for $1.2 < E_\gamma < 4.7$ GeV using CLAS at Jefferson Laboratory

Photoproduction cross sections are reported for the reaction $\gamma p\to p\eta$ using energy-tagged photons and the CLAS spectrometer at Jefferson Laboratory. The $\eta$ mesons are detected in their dominant charged decay mode, $\eta\to…

Nuclear Experiment · Physics 2021-01-04 T. Hu , Z. Akbar , V. Crede , K. P. Adhikari , S. Adhikari , M. J. Amaryan , G. Angelini , G. Asryan , H. Atac , C. Ayerbe Gayoso , L. Barion , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , A. S. Biselli , F. Bossu , S. Boiarinov , W. J. Briscoe , W. K. Brooks , D. S. Carman , J. Carvajal , A. Celentano , P. Chatagnon , T. Chetry , G. Ciullo , L. Clark , B. A. Clary , P. L. Cole , M. Contalbrigo , R. Cruz-Torres , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , C. Djalali , M. Dugger , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , R. Fersch , A. Filippi , G. Gavalian , G. P. Gilfoyle , F. X. Girod , D. I. Glazier , E. Golovatch , R. W. Gothe , K. A. Griffioen , M. Guidal , L. Guo , K. Hafidi , H. Hakobyan , C. Hanretty , N. Harrison , M. Hattawy , T. B. Hayward , D. Heddle , K. Hicks , A. Hobart , M. Holtrop , Y. Ilieva , I. Illari , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , D. Jenkins , H. S. Jo , K. Joo , S. Joosten , D. Keller , M. Khachatryan , A. Khanal , M. Khandaker , A. Kim , C. W. Kim , W. Kim , F. J. Klein , V. Kubarovsky , L. Lanza , M. Leali , P. Lenisa , K. Livingston , I. J. D. MacGregor , D. Marchand , N. Markov , V. Mascagna , M. E. McCracken , B. McKinnon , C. A. Meyer , Z. E. Meziani , T. Mineeva , V. Mokeev , A. Movsisyan , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , S. Niccolai , G. Niculescu , T. O'Connell , M. Osipenko , A. I. Ostrovidov , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , W. Phelps , O. Pogorelko , J. Poudel , J. W. Price , Y. Prok , D. Protopopescu , B. A. Raue , M. Ripani , J. Ritman , A. Rizzo , G. Rosner , J. Rowley , F. Sabatie , C. Salgado , A. Schmidt , R. A. Schumacher , Y. G. Sharabian , U. Shrestha , Iu. Skorodumina , D. Sokhan , O. Soto , N. Sparveris , S. Stepanyan , P. Stoler , I. I. Strakovsky , S. Strauch , J. A. Tan , N. Tyler , M. Ungaro , L. Venturelli , H. Voskanyan , E. Voutier , D. P. Watts , K. Wei , X. Wei , M. H. Wood , N. Zachariou , J. Zhang , Z. W. Zhao

Photoproduction of $K\Lambda$ on the proton

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

Strangeness Electromagnetic Production on Nucleons and Nuclei

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

Inclusive Particle Production at LEP

New results on inclusive production of Sigma^- and Lambda(1520) and on proton production in quark and gluon jets are presented. These results are based on 2 million hadronic Z decays collected with the DELPHI detector at LEP. They are…

High Energy Physics - Experiment · Physics 2007-05-23 V. Uvarov

Nucleon Resonance Structure from Exclusive Meson Electroproduction with CLAS

Studies of the nucleon resonance electroexcitation amplitudes in a wide range of photon virtualities offer unique information on many facets of strong QCD behind the generation of all prominent excited nucleon states. Advances in the…

Nuclear Experiment · Physics 2022-10-19 Victor I. Mokeev

Meson Production Experiments with Electromagnetic Beams using CLAS

The CEBAF Large Acceptnace Spectrometer (CLAS) has been taking production data since February, 1998. It takes data for many reactions simultaneously with moderate resolution. Data has been taken for a variety of conditions with polarized…

Nuclear Experiment · Physics 2014-11-18 S. A. Dytman

DVCS with CLAS

Generalized parton distributions provide a unifying framework for the interpretation of exclusive reactions at high $Q^2$. The most promising reaction for the investigation of these distributions is the hard production of photons using…

Nuclear Experiment · Physics 2014-11-18 Elton S. Smith

Electroproduction of p \pi^{+} \pi^{-} off protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with CLAS

This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process $e p \to e' p \pi^{+} \pi^{-} $. The data were collected with the CLAS detector at Jefferson Laboratory.…

Nuclear Experiment · Physics 2019-08-13 G. V. Fedotov , V. I. Mokeev , V. D. Burkert , L. Elouadrhiri , E. N. Golovatch , B. S. Ishkhanov , E. L. Isupov , N. V. Shvedunov

New Isobar Models for $K^+\Lambda$ Electroproduction

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

Evidence of new nucleon resonances from electromagnetic meson production

The study of nucleon resonances in electromagnetic meson production with the CLAS detector is discussed. The electromagnetic interaction is complementary to pion scattering in the exploration of the nucleon excitation spectrum. Higher mass…

Nuclear Experiment · Physics 2017-08-23 Volker D. Burkert

Strangeness photoproduction at extremely forward angles at the BGO-OD experiment

The BGO-OD experiment at the ELSA accelerator facility uses an energy tagged bremstrahlung photon beam to investigate the internal structure of the nucleon. The setup consists of a highly segmented BGO calorimeter surrounding the target,…

Nuclear Experiment · Physics 2019-09-04 T. C. Jude

Strangeness and hypernuclear production in fragmentation reactions induced by antikaons

Formation mechanism of hyperfragments with strangeness s=-1 and s=-2 in collisions of antikaons on nuclei has been investigated within a microscopic transport model. Dynamics of pseudoscalar mesons and hyperons is modeled within the…

Nuclear Theory · Physics 2020-02-19 Zhao-Qing Feng

Photoproduction of phi mesons from the proton: Polarization observables and strangeness in the nucleon

The polarization observables in phi meson photoproduction is studied to probe the strangeness content of the nucleon. In addition to the dominant diffractive production and the one-pion-exchange process, we take into account the direct…

Nuclear Theory · Physics 2009-09-25 Alexander I. Titov , Yongseok Oh , Shin Nan Yang , Tosiyuki Morii

Spin Observables in Transition-Distribution-Amplitude Studies

Exclusive hadronic reactions with a massive lepton pair (l^+l^-) in the final state will be measured with PANDA at GSI-FAIR and with Compass at CERN, both in p+p-bar -> l^+l^-+pi and pi+N -> N'+l^+l^-. Similarly, electroproduction of a…

High Energy Physics - Phenomenology · Physics 2015-05-20 J. P. Lansberg , B. Pire , L. Szymanowski

Off-shell effects in the electromagnetic production of strangeness

Previous approaches to the photo- and electro-production of strangeness off the proton, based upon effective hadronic Lagrangians, are extended here to incorporate the so called off-shell effects inherent to the fermions with spin >= 3/2. A…

Nuclear Theory · Physics 2008-11-26 T. Mizutani , C. Fayard , G. -H. Lamot , B. Saghai

Photoproduction of the $f_2(1270)$ meson using the CLAS detector

The quark structure of the $f_2(1270)$ meson has, for many years, been assumed to be a pure quark-antiquark ($q\bar{q}$) resonance with quantum numbers $J^{PC} = 2^{++}$. Recently, it was proposed that the $f_2(1270)$ is a molecular state…

Nuclear Experiment · Physics 2021-03-03 M. ~Carver , A. ~Celentano , K. ~Hicks , L. ~Marsicano , V. ~Mathieu , A. ~Pilloni , K. P. ~Adhikari , S. Adhikari , M. J. ~Amaryan , Giovanni Angelini , H. ~Atac , N. A. ~Baltzell , L. Barion , M. ~Battaglieri , I. ~Bedlinskiy , Fatiha Benmokhtar , A. ~Bianconi , A. S. ~Biselli , M. ~Bondi , F. ~Bossù , S. ~Boiarinov , W. J. ~Briscoe , W. K. ~Brooks , D. ~Bulumulla , V. D. ~Burkert , D. S. ~Carman , J. C. ~Carvajal , P. ~Chatagnon , T. ~Chetry , G. ~Ciullo , L. ~Clark , B. A. ~Clary , P. L. ~Cole , M. ~Contalbrigo , V. ~Crede , A. ~D'Angelo , N. ~Dashyan , R. ~De~Vita , M. Defurne , A. ~Deur , S. Diehl , C. ~Djalali , M. ~Dugger , R. ~Dupre , H. ~Egiyan , M. ~Ehrhart , A. ~El~Alaoui , L. ~El~Fassi , P. ~Eugenio , G. ~Fedotov , S. ~Fegan , A. ~Filippi , G. ~Gavalian , N. ~Gevorgyan , G. P. ~Gilfoyle , F. X. ~Girod , R. W. ~Gothe , K. A. ~Griffioen , K. ~Hafidi , H. ~Hakobyan , M. ~Hattawy , T. B. ~Hayward , D. ~Heddle , M. ~Holtrop , Q. ~Huang , C. E. ~Hyde , Y. ~Ilieva , D. G. ~Ireland , E. L. ~Isupov , D. ~Jenkins , H. S. ~Jo , K. ~Joo , S. ~ Joosten , D. ~Keller , A. ~Khanal , M. ~Khandaker , A. ~Kim , C. W. ~Kim , F. J. ~Klein , A. ~Kripko , V. ~Kubarovsky , L. ~Lanza , M. ~Leali , P. ~Lenisa , K. ~Livingston , I. J. D. ~MacGregor , D. ~Marchand , V. ~Mascagna , M. E. ~McCracken , B. ~McKinnon , Z. E. ~Meziani , V. ~Mokeev , A~Movsisyan , E. ~Munevar , C. ~Munoz~Camacho , P. ~Nadel-Turonski , K. ~Neupane , S. ~Niccolai , G. ~Niculescu , M. ~Osipenko , A. I. ~Ostrovidov , M. ~Paolone , L. L. ~Pappalardo , R. ~Paremuzyan , E. ~Pasyuk , W. ~Phelps , O. ~Pogorelko , Y. ~Prok , D. ~Protopopescu , M. ~Ripani , B. G. ~Ritchie , J. ~Ritman , A. ~Rizzo , G. ~Rosner , J. ~Rowley , F. ~Sabatié , C. ~Salgado , A. ~Schmidt , R. A. ~Schumacher , Y. G. ~Sharabian , U. ~Shrestha , D. ~Sokhan , O. ~Soto , N. ~Sparveris , S. ~Stepanyan , I. I. ~Strakovsky , S. ~Strauch , N. ~Tyler , R. ~Tyson , M. ~Ungaro , L. ~Venturelli , H. ~Voskanyan , E. ~Voutier , D. P. ~Watts , K. ~Wei , X. ~Wei , B. ~Yale , N. ~Zachariou , J. ~Zhang , Z. W. ~Zhao

Polarization Observables for Kaon Photoproduction from Polarized Protons

The search for undiscovered excited states of the nucleon continues to be a focus of experiments at Jefferson Lab.Recent LQCD calculations have confirmed long-standing quark-model predictions of many more states than have so far been…

Nuclear Experiment · Physics 2015-06-18 Natalie K. Walford , Franz J. Klein