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The Jefferson Lab CLAS12 detector will provide a world-leading facility for the study of electron-nucleon scattering. The CLAS12 physics program is very broad and includes studies on quarks dynamics as well as studies on the meson and…

Instrumentation and Detectors · Physics 2018-07-25 Giovanni Angelini

The SELEX experiment (Fermilab E781) is a 3-stage magnetic spectrometer for the study of charm hadroproduction at large x_F using 600GeV/c Sigma-, pi-, and p beams. New precise measurements of the Lambda_c, D0, and Ds lifetimes are…

High Energy Physics - Experiment · Physics 2009-04-17 SELEX Collaboration , J. Engelfried

We report measurements of the exclusive electroproduction of $K^+\Lambda$ and $K^+\Sigma^0$ final states from a proton target using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions…

High Energy Physics - Experiment · Physics 2010-04-06 P. Ambrozewicz , D. S. Carman , R. J. Feuerbach , M. D. Mestayer , B. A. Raue , R. A. Schumacher , A. Tkabladze

Hadronic reactions producing strange quarks such as exclusive or semi-inclusive kaon production, play an important role in studies of hadron structure and the dynamics that bind the most basic elements of nuclear physics. The small-angle…

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 $12~$GeV electron beam energy at Jefferson Laboratory provides ideal electroproduction kinematics for many novel tests of QCD in both the perturbative and nonperturbative domains. These include tests of the quark flavor dependence of…

High Energy Physics - Phenomenology · Physics 2015-11-16 Stanley J. Brodsky

The exclusive electroproduction of $\pi^+$ above the resonance region was studied using the $\rm{CEBAF}$ Large Acceptance Spectrometer ($\rm{CLAS}$) at Jefferson Laboratory by scattering a 6 GeV continuous electron beam off a hydrogen…

Nuclear Experiment · Physics 2013-01-29 K. Park , M. Guidal , R. W. Gothe , J. M. Laget , M. Garçon , K. P. Adhikari , M. Aghasyan , M. J. Amaryan , M. Anghinolfi , H. Avakian , H. Baghdasaryan , J. Ball , N. A. Baltzell , M. Battaglieri , I. Bedlinsky , R. P. Bennett , A. S. Biselli , C. Bookwalter , S. Boiarinov , W. J. Briscoe , W. K. Brooks , V. D. Burkert , D. S. Carman , A. Celentano , S. Chandavar , G. Charles , M. Contalbrigo , V. Crede , A. D'Angelo , A. Daniel , N. Dashyan , R. De Vita , E. De Sanctis , A. Deur , C. Djalali , G. E. Dodge , D. Doughty , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , A. Fradi , P. Eugenio , G. Fedotov , S. Fegan , J. A. Fleming , T. A. Forest , N. Gevorgyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , W. Gohn , E. Golovatch , L. Graham , K. A. Griffioen , B. Guegan , L. Guo , K. Hafidi , H. Hakobyan , C. Hanretty , D. Heddle , K. Hicks , D. Ho , M. Holtrop , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , D. Jenkins , H. S. Jo , D. Keller , M. Khandaker , P. Khetarpal , A. Kim , W. Kim , F. J. Klein , S. Koirala , A. Kubarovsky , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , K. Livingston , H. Y. Lu , I. J. D. MacGregor , Y. Mao , N. Markov , D. Martinez , M. Mayer , B. McKinnon , C. A. Meyer , T. Mineeva , M. Mirazita , V. Mokeev , H. Moutarde , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , C. S. Nepali , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , L. L. Pappalardo , R. Paremuzyan , S. Park , E. Pasyuk , S. Anefalos Pereira , E. Phelps , S. Pisano , O. Pogorelko , S. Pozdniakov , J. W. Price , S. Procureur , D. Protopopescu , A. J. R. Puckett , B. A. Raue , G. Ricco , D. Rimal , M. Ripani , G. Rosner , P. Rossi , F. Sabatie , M. S. Saini , C. Salgado , D. Schott , R. A. Schumacher , E. Seder , H. Seraydaryan , Y. G. Sharabian , E. S. Smith , G. D. Smith , D. I. Sober , D. Sokhan , S. S. Stepanyan , P. Stoler , I. I. Strakovsky , S. Strauch , M. Taiuti , W. Tang , C. E. Taylor , Ye Tian , S. Tkachenko , A. Trivedi , M. Ungaro , B . Vernarsky , H. Voskanyan , E. Voutier , N. K. Walford , D. P. Watts , L. B. Weinstein , D. P. Weygand , M. H. Wood , N. Zachariou , J. Zhang , Z. W. Zhao , I. Zonta

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

An extensive program of strange particle production off the nucleon is currently underway with the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B at Jefferson Laboratory. This talk will emphasize strangeness electroproduction in the…

High Energy Physics - Experiment · Physics 2008-01-08 Daniel S. Carman

For the first time, baryon-antibaryon photoproduction in the reaction $\gamma p \to \Lambda \bar{\Lambda} p$ has been observed at photon energies from threshold near 4.9 GeV to 11.6 GeV. The measurements are in progress with the GlueX…

High Energy Physics - Experiment · Physics 2019-09-04 Reinhard Schumacher , Hao Li

An extensive program of strange particle production off the proton is currently underway with the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B at Jefferson Laboratory. This talk will emphasize strangeness photo- and…

High Energy Physics - Experiment · Physics 2017-08-23 D. S. Carman

The search for missing nucleon resonances using coupled channel analysis has mostly been concentrated on $N\pi$ and $KY$ channels, while the contributions of $K^*Y$ and $KY^*$ channels have not been investigated thoroughly mostly due to the…

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

The Thomas Jefferson National Accelerator Facility (JLab) has undertaken the 12 GeV Upgrade to double the accelerating energy of its electron beam. This attracts many interesting proposals to probe the quark-gluon nature of nuclear matter…

Instrumentation and Detectors · Physics 2023-04-21 W. B. Li

The point-contact (PC) spectroscopy study of the electron-phonon(boson) interaction (EP(B)I) spectral function in HoNi2B2C reveals phonon maxima at 16 and 22meV and 34meV. For the first time the pronounced high energy maxima at about 50meV…

The resonance region of $^{11}$B covering excitation energies from 8.4 MeV to 13.6 MeV was investigated with the $(d,p)$ reaction performed on an enriched $^{10}$B target at the Florida State University Super-Enge Split-Pole Spectrograph of…

We report measurements of the exclusive electroproduction of $K^+\Lambda$ and $K^+\Sigma^0$ final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The separated…

Nuclear Experiment · Physics 2013-03-14 D. S. Carman , K. Park , B. A. Raue , CLAS Collaboration

We propose to create a secondary beam of neutral kaons in Hall D at Jefferson Lab to be used with the GlueX experimental setup for strange hadron spectroscopy. The superior CEBAF electron beam will enable a flux on the order of $1\times…

Nuclear Experiment · Physics 2021-03-05 KLF Collaboration , Moskov Amaryan , Mikhail Bashkanov , Sean Dobbs , James Ritman , Justin Stevens , Igor Strakovsky , Shankar Adhikari , Arshak Asaturyan , Alexander Austregesilo , Marouen Baalouch , Vitaly Baturin , Vladimir Berdnikov , Olga Cortes Becerra , Timothy Black , Werner Boeglin , William Briscoe , William Brooks , Volker Burkert , Eugene Chudakov , Geraint Clash , Philip Cole , Volker Crede , Donal Day , Pavel Degtyarenko , Alexandre Deur , Gail Dodge , Anatoly Dolgolenko , Simon Eidelman , Hovanes Egiyan , Denis Epifanov , Paul Eugenio , Stuart Fegan , Alessandra Filippi , Sergey Furletov , Liping Gan , Franco Garibaldi , Ashot Gasparian , Gagik Gavalian , Derek Glazier , Colin Gleason , Vladimir Goryachev , Lei Guo , David Hamilton , Avetik Hayrapetyan , Garth Huber , Andrew Hurley , Charles Hyde , Isabella Illari , David Ireland , Igal Jaegle , Kyungseon Joo , Vanik Kakoyan , Grzegorz Kalicy , Mahmoud Kamel , Christopher Keith , Chan Wook Kim , Eberhard Klemp , Geoffrey Krafft , Sebastian Kuhn , Sergey Kuleshov , Alexander Laptev , Ilya Larin , David Lawrence , Daniel Lersch , Wenliang Li , Kevin Luckas , Valery Lyubovitskij , David Mack , Michael McCaughan , Mark Manley , Hrachya Marukyan , Vladimir Matveev , Mihai Mocanu , Viktor Mokeev , Curtis Meyer , Bryan McKinnon , Frank Nerling , Matthew Nicol , Gabriel Niculescu , Alexander Ostrovidov , Zisis Papandreou , KiJun Park , Eugene Pasyuk , Peter Pauli , Lubomir Pentchev , William Phelps , John Price , Jorg Reinhold , Dimitri Romanov , Carlos Salgado , Todd Satogata , Susan Schadmand , Amy Schertz , Axel Schmidt , Daniel Sober , Alexander Somov , Sergei Somov , Victor Tarasov , Simon Taylor , Annika Thiel , Guido Maria Urciuoli , Holly Szumila-Vance , Daniel Watts , Lawrence Weinstein , Timothy Whitlatch , Nilanga Wickramaarachchi , Bogdan Wojtsekhowski , Nicholas Zachariou , Jonathan Zarling , Jixie Zhang , Alexey Anisovich , Alexei Bazavov , Rene Bellwied , Veronique Bernard , Gilberto Colangelo , Ales Cieply , Michael Doring , Ali Eskanderian , Jose Goity , Helmut Haberzettl , Mirza Hadzimehmedovic , Robert Jaffe , Boris Kopeliovich , Heinrich Leutwyler , Maxim Mai , Terry Mart , Maxim Matveev , Ulf-G. Meissner , Colin Morningstar , Bachir Moussallam , Kanzo Nakayama , Wolfgang Ochs , Youngseok Oh , Rifat Omerovic , Hedim Osmanovic , Eulogio Oset , Antimo Palano , Jose Pelaez , Alessandro Pilloni , Maxim Polyakov , David Richards , Arkaitz Rodas , Dan-Olof Riska , Jacobo Ruiz de Elvira , Hui-Young Ryu , Elena Santopinto , Andrey Sarantsev , Jugoslav Stahov , Alfred Svarc , Adam Szczepaniak , Ronald Workman , Bing-Song Zou

The transverse polarization of $\Lambda$ hyperons was measured in inclusive quasireal photoproduction for various target nuclei ranging from hydrogen to xenon. The data were obtained by the HERMES experiment at HERA using the 27.6 GeV…

High Energy Physics - Experiment · Physics 2014-10-22 The HERMES Collaboration , A. Airapetian , N. Akopov , Z. Akopov , E. C. Aschenauer , W. Augustyniak , R. Avakian , A. Avetissian , E. Avetisyan , S. Belostotski , N. Bianchi , H. P. Blok , A. Borissov , J. Bowles , I. Brodski , V. Bryzgalov , J. Burns , M. Capiluppi , G. P. Capitani , E. Cisbani , G. Ciullo , M. Contalbrigo , P. F. Dalpiaz , W. Deconinck , R. De Leo , L. De Nardo , E. De Sanctis , M. Diefenthaler , P. Di Nezza , M. Düren , M. Ehrenfried , G. Elbakian , F. Ellinghaus , R. Fabbri , A. Fantoni , L. Felawka , S. Frullani , D. Gabbert , G. Gapienko , V. Gapienko , F. Garibaldi , G. Gavrilov , V. Gharibyan , F. Giordano , S. Gliske , M. Golembiovskaya , C. Hadjidakis , M. Hartig , D. Hasch , A. Hillenbrand , M. Hoek , Y. Holler , I. Hristova , Y. Imazu , A. Ivanilov , H. E. Jackson , H. S. Jo , S. Joosten , R. Kaiser , G. Karyan , T. Keri , E. Kinney , A. Kisselev , N. Kobayashi , V. Korotkov , V. Kozlov , P. Kravchenko , V. G. Krivokhijine , L. Lagamba , L. Lapikás , I. Lehmann , P. Lenisa , A. López Ruiz , W. Lorenzon , X. -G. Lu , B. -Q. Ma , D. Mahon , N. C. R. Makins , S. I. Manaenkov , Y. Mao , B. Marianski , A. Martinez de la Ossa , H. Marukyan , C. A. Miller , Y. Miyachi , A. Movsisyan , V. Muccifora , M. Murray , A. Mussgiller , E. Nappi , Y. Naryshkin , A. Nass , M. Negodaev , W. -D. Nowak , L. L. Pappalardo , R. Perez-Benito , P. E. Reimer , A. R. Reolon , C. Riedl , K. Rith , G. Rosner , A. Rostomyan , J. Rubin , D. Ryckbosch , Y. Salomatin , F. Sanftl , A. Schäfer , G. Schnell , K. P. Schüler , B. Seitz , T. -A. Shibata , V. Shutov , M. Stancari , M. Statera , E. Steffens , J. J. M. Steijger , J. Stewart , F. Stinzing , S. Taroian , A. Terkulov , R. Truty , A. Trzcinski , M. Tytgat , A. Vandenbroucke , Y. Van Haarlem , C. Van Hulse , D. Veretennikov , V. Vikhrov , I. Vilardi , S. Wang , S. Yaschenko , Z. Ye , W. Yu , V. Zagrebelnyy , D. Zeiler , B. Zihlmann , P. Zupranski

In recent years, several experiments using magnetic spectrometers provided high precision results in the field of Hypernuclear Physics. In particular, the accurate determination of the Lambda-binding energy, B(Lambda), contributed to…

Nuclear Experiment · Physics 2017-04-05 E. Botta , T. Bressani , A. Feliciello