Corrected Article: Exclusive electroproduction of φ mesons at 4.2 GeV [Phys. Rev. C63, 065205 (2001)]
Clicks: 161
ID: 270620
2001
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Abstract
We studied the exclusive reaction ep→e′p′φ using the φ→K+K− decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Our experiment covers the range in Q2 from 0.7 to 2.2 GeV2, and W from 2.0 to 2.6 GeV. Taken together with all previous data, we find a consistent picture of φ production on the proton. Our measurement shows the expected decrease of the t slope with the vector-meson formation time cΔτ below 2 fm. At 〈cΔτ〉=0.6 fm, we measure bφ=2.27±0.42 GeV−2. The cross section dependence on W as W0.2±0.1 at Q2=1.3 GeV2 was determined by comparison with φ production at HERA after correcting for threshold effects. This is the same dependence as observed in photoproduction.
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| Authors | K. Lukashin,E. S. Smith,G. S. Adams,E. Anciant,M. Anghinolfi,B. Asavapibhop,G. Audit,T. Auger,H. Avakian,J. Ball,S. Barrow,M. Battaglieri,K. Beard,M. Bektasoglu,W. Bertozzi,N. Bianchi,A. Biselli,S. Boiarinov,B. E. Bonner,S. Bouchigny,D. Branford,W. J. Briscoe,W. K. Brooks,V. D. Burkert,J. R. Calarco,D. S. Carman,B. Carnahan,L. Ciciani,R. Clark,P. L. Cole,A. Coleman,D. Cords,P. Corvisiero,D. Crabb,H. Crannell,J. Cummings,P. V. Degtiarenko,L. C. Dennis,E. De Sanctis,R. DeVita,K. S. Dhuga,C. Djalali,G. E. Dodge,J. Domingo,D. Doughty,P. Dragovitsch,S. Dytman,M. Eckhause,H. Egiyan,K. S. Egiyan,L. Elouadrhiri,A. Empl,R. Fatemi,R. J. Feuerbach,J. Ficenec,K. Fissum,T. A. Forest,A. Freyberger,H. Funsten,S. Gaff,M. Gai,G. Gavalian,S. Gilad,G. Gilfoyle,K. Giovanetti,P. Girard,K. A. Griffioen,M. Guidal,M. Guillo,V. Gyurjyan,J. Hardie,D. Heddle,F. W. Hersman,K. Hicks,R. S. Hicks,M. Holtrop,J. Hu,C. E. Hyde-Wright,M. M. Ito,D. Jenkins,K. Joo,J. Kelley,M. Khandaker,K. Kim,W. Kim,A. Klein,F. J. Klein,M. Klusman,M. Kossov,L. H. Kramer,S. E. Kuhn,J. M. Laget,D. Lawrence,A. Longhi,J. J. Manak,C. Marchand,S. McAleer,J. McCarthy,J. W. C. McNabb,B. A. Mecking,M. D. Mestayer,C. A. Meyer,K. Mikhailov,R. Minehart,M. Mirazita,R. Miskimen,V. Muccifora,J. Mueller,G. S. Mutchler,J. Napolitano,S. Nelson,G. Niculescu,B. B. Niczyporuk,R. A. Niyazov,A. Opper,G. O’Rielly,J. T. O’Brien,K. Park,K. Paschke,E. Pasyuk,G. A. Peterson,S. Philips,N. Pivnyuk,D. Pocanic,O. Pogorelko,E. Polli,S. Pozdniakov,B. M. Preedom,J. W. Price,L. M. Qin,B. A. Raue,A. R. Reolon,G. Riccardi,G. Ricco,M. Ripani,B. G. Ritchie,F. Ronchetti,P. Rossi,D. Rowntree,P. D. Rubin,F. Sabatié,K. Sabourov,C. W. Salgado,V. Sapunenko,R. A. Schumacher,V. Serov,Y. G. Sharabian,J. Shaw,S. Simionatto,A. Skabelin,L. C. Smith,D. I. Sober,A. Stavinsky,S. Stepanyan,P. Stoler,I. I. Strakovsky,M. Taiuti,S. Taylor,D. Tedeschi,R. Thompson,M. F. Vineyard,A. Vlassov,K. Wang,H. Weller,L. B. Weinstein,R. Welsh,D. P. Weygand,S. Whisnant,E. Wolin,L. Yanik,A. Yegneswaran,J. Yun,J. Zhao,B. Zhang,Z. Zhou;K. Lukashin;E. S. Smith;G. S. Adams;E. Anciant;M. Anghinolfi;B. Asavapibhop;G. Audit;T. Auger;H. Avakian;J. Ball;S. Barrow;M. Battaglieri;K. Beard;M. Bektasoglu;W. Bertozzi;N. Bianchi;A. Biselli;S. Boiarinov;B. E. Bonner;S. Bouchigny;D. Branford;W. J. Briscoe;W. K. Brooks;V. D. Burkert;J. R. Calarco;D. S. Carman;B. Carnahan;L. Ciciani;R. Clark;P. L. Cole;A. Coleman;D. Cords;P. Corvisiero;D. Crabb;H. Crannell;J. Cummings;P. V. Degtiarenko;L. C. Dennis;E. De Sanctis;R. DeVita;K. S. Dhuga;C. Djalali;G. E. Dodge;J. Domingo;D. Doughty;P. Dragovitsch;S. Dytman;M. Eckhause;H. Egiyan;K. S. Egiyan;L. Elouadrhiri;A. Empl;R. Fatemi;R. J. Feuerbach;J. Ficenec;K. Fissum;T. A. Forest;A. Freyberger;H. Funsten;S. Gaff;M. Gai;G. Gavalian;S. Gilad;G. Gilfoyle;K. Giovanetti;P. Girard;K. A. Griffioen;M. Guidal;M. Guillo;V. Gyurjyan;J. Hardie;D. Heddle;F. W. Hersman;K. Hicks;R. S. Hicks;M. Holtrop;J. Hu;C. E. Hyde-Wright;M. M. Ito;D. Jenkins;K. Joo;J. Kelley;M. Khandaker;K. Kim;W. Kim;A. Klein;F. J. Klein;M. Klusman;M. Kossov;L. H. Kramer;S. E. Kuhn;J. M. Laget;D. Lawrence;A. Longhi;J. J. Manak;C. Marchand;S. McAleer;J. McCarthy;J. W. C. McNabb;B. A. Mecking;M. D. Mestayer;C. A. Meyer;K. Mikhailov;R. Minehart;M. Mirazita;R. Miskimen;V. Muccifora;J. Mueller;G. S. Mutchler;J. Napolitano;S. Nelson;G. Niculescu;B. B. Niczyporuk;R. A. Niyazov;A. Opper;G. O’Rielly;J. T. O’Brien;K. Park;K. Paschke;E. Pasyuk;G. A. Peterson;S. Philips;N. Pivnyuk;D. Pocanic;O. Pogorelko;E. Polli;S. Pozdniakov;B. M. Preedom;J. W. Price;L. M. Qin;B. A. Raue;A. R. Reolon;G. Riccardi;G. Ricco;M. Ripani;B. G. Ritchie;F. Ronchetti;P. Rossi;D. Rowntree;P. D. Rubin;F. Sabatié;K. Sabourov;C. W. Salgado;V. Sapunenko;R. A. Schumacher;V. Serov;Y. G. Sharabian;J. Shaw;S. Simionatto;A. Skabelin;L. C. Smith;D. I. Sober;A. Stavinsky;S. Stepanyan;P. Stoler;I. I. Strakovsky;M. Taiuti;S. Taylor;D. Tedeschi;R. Thompson;M. F. Vineyard;A. Vlassov;K. Wang;H. Weller;L. B. Weinstein;R. Welsh;D. P. Weygand;S. Whisnant;E. Wolin;L. Yanik;A. Yegneswaran;J. Yun;J. Zhao;B. Zhang;Z. Zhou; |
| Journal | physical review c |
| Year | 2001 |
| DOI |
10.1103/PhysRevC.64.059901
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| URL | |
| Keywords |
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