Phys. Rev. C
76,
052202(R)
(2007)
[6 pages]
Measurement of coherent ϕ-meson photoproduction from the deuteron at low energies
T. Mibe et al. CLAS Collaboration
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T. Mibe1, H. Gao2, K. Hicks1, K. Kramer2, S. Stepanyan3, D. J. Tedeschi4, M. J. Amaryan31, P. Ambrozewicz16, M. Anghinolfi22, G. Asryan39, G. Audit11, H. Avakian3, H. Bagdasaryan31, N. Baillie38, J. P. Ball6, N. A. Baltzell4, M. Battaglieri22, I. Bedlinskiy24, M. Bellis9, N. Benmouna18, B. L. Berman18, A. S. Biselli9,15, L. Blaszczyk17, S. Bouchigny23, S. Boiarinov3, R. Bradford9, D. Branford14, W. J. Briscoe18, W. K. Brooks3, S. Bültmann31, V. D. Burkert3, C. Butuceanu38, J. R. Calarco29, S. L. Careccia31, D. S. Carman3, S. Chen17, P. L. Cole3,10,20, P. Collins6, P. Coltharp17, D. Crabb37, H. Crannell10, V. Crede17, J. P. Cummings32, N. Dashyan39, R. De Masi11, R. De Vita22, E. De Sanctis21, P. V. Degtyarenko3, A. Deur3, K. V. Dharmawardane31, R. Dickson9, C. Djalali4, G. E. Dodge31, J. Donnelly19, D. Doughty3,12, M. Dugger6, O. P. Dzyubak4, H. Egiyan3,*, K. S. Egiyan39, L. El Fassi5, L. Elouadrhiri3, P. Eugenio17, G. Fedotov28, G. Feldman18, H. Funsten38, M. Garçon11, G. Gavalian29,31, G. P. Gilfoyle34, K. L. Giovanetti25, F. X. Girod3,11, J. T. Goetz7, A. Gonenc16, C. I. O. Gordon19, R. W. Gothe4, K. A. Griffioen38, M. Guidal23, N. Guler31, L. Guo3, V. Gyurjyan3, C. Hadjidakis23, K. Hafidi5, H. Hakobyan39, R. S. Hakobyan10, C. Hanretty17, J. Hardie3,12, F. W. Hersman29, I. Hleiqawi1, M. Holtrop29, C. E. Hyde-Wright31, Y. Ilieva18, D. G. Ireland19, B. S. Ishkhanov28, E. L. Isupov28, M. M. Ito3, D. Jenkins36, H. S. Jo23, J. R. Johnstone19, K. Joo13, H. G. Juengst18,31, N. Kalantarians31, J. D. Kellie19, M. Khandaker30, W. Kim26, A. Klein31, F. J. Klein10, A. V. Klimenko31, M. Kossov24, Z. Krahn9, L. H. Kramer3,16, V. Kubarovsky32, J. Kuhn9, S. E. Kuhn31, S. V. Kuleshov24, V. Kuznetsov26, J. Lachniet9,31, J. M. Laget3,11, J. Langheinrich4, D. Lawrence27, T. Lee29, J. Li32, K. Livingston19, H. Y. Lu4, M. MacCormick23, C. Marchand11, N. Markov13, P. Mattione33, B. McKinnon19, B. A. Mecking3, J. J. Melone19, M. D. Mestayer3, C. A. Meyer9, K. Mikhailov24, R. Minehart37, M. Mirazita21, R. Miskimen27, V. Mokeev28, K. Moriya9, S. A. Morrow11,23, M. Moteabbed16, E. Munevar18, G. S. Mutchler33, P. Nadel-Turonski18, R. Nasseripour4,16, S. Niccolai23, G. Niculescu25, I. Niculescu25, B. B. Niczyporuk3, M. R. Niroula31, R. A. Niyazov3, M. Nozar3,†, M. Osipenko22,28, A. I. Ostrovidov17, K. Park26, E. Pasyuk6, C. Paterson19, S. Anefalos Pereira21, J. Pierce37, N. Pivnyuk24, D. Pocanic37, O. Pogorelko24, S. Pozdniakov24, J. W. Price8, Y. Prok3,37,‡, D. Protopopescu19, B. A. Raue3,16, G. Riccardi17, G. Ricco22, M. Ripani22, B. G. Ritchie6, F. Ronchetti21, G. Rosner19, P. Rossi21, F. Sabatié11, J. Salamanca20, C. Salgado30, J. P. Santoro3,36,§, V. Sapunenko3, R. A. Schumacher9, V. S. Serov24, Y. G. Sharabian3, D. Sharov28, N. V. Shvedunov28, E. S. Smith3, L. C. Smith37, D. I. Sober10, D. Sokhan14, A. Stavinsky24, S. S. Stepanyan26, B. E. Stokes17, P. Stoler32, I. I. Strakovsky18, S. Strauch4,18, M. Taiuti22, U. Thoma3,**, A. Tkabladze1,18, S. Tkachenko31, L. Todor34, C. Tur4, M. Ungaro13,32, M. F. Vineyard35, A. V. Vlassov24, D. P. Watts19,††, L. B. Weinstein31, D. P. Weygand3, M. Williams9, E. Wolin3, M. H. Wood4,‡‡, A. Yegneswaran3, L. Zana29, J. Zhang31, B. Zhao13, and Z. W. Zhao4 (CLAS Collaboration)
1Ohio University, Athens, Ohio 45701, USA
2Duke University, Durham, North Carolina 27708, USA
3Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
4University of South Carolina, Columbia, South Carolina 29208, USA
5Argonne National Laboratory, Argonne, Illinois 60439, USA
6Arizona State University, Tempe, Arizona 85287-1504, USA
7University of California at Los Angeles, Los Angeles, California 90095-1547, USA
8California State University, Dominguez Hills, Carson, CA 90747, USA
9Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
10Catholic University of America, Washington, D.C. 20064, USA
11CEA-Saclay, Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France
12Christopher Newport University, Newport News, Virginia 23606, USA
13University of Connecticut, Storrs, Connecticut 06269, USA
14Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
15Fairfield University, Fairfield, Connecticut 06824, USA
16Florida International University, Miami, Florida 33199, USA
17Florida State University, Tallahassee, Florida 32306, USA
18The George Washington University, Washington, D.C. 20052, USA
19University of Glasgow, Glasgow G12 8QQ, United Kingdom
20Idaho State University, Pocatello, Idaho 83209, USA
21INFN, Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
22INFN, Sezione di Genova, I-16146 Genova, Italy
23Institut de Physique Nucleaire ORSAY, Orsay, France
24Institute of Theoretical and Experimental Physics, RU-117259 Moscow, Russia
25James Madison University, Harrisonburg, Virginia 22807, USA
26Kyungpook National University, Daegu 702-701, Republic of Korea
27University of Massachusetts, Amherst, Massachusetts 01003, USA
28Moscow State University, General Nuclear Physics Institute, RU-119899 Moscow, Russia
29University of New Hampshire, Durham, New Hampshire 03824-3568, USA
30Norfolk State University, Norfolk, Virginia 23504, USA
31Old Dominion University, Norfolk, Virginia 23529, USA
32Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
33Rice University, Houston, Texas 77005-1892, USA
34University of Richmond, Richmond, Virginia 23173, USA
35Union College, Schenectady, New York 12308, USA
36Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0435, USA
37University of Virginia, Charlottesville, Virginia 22901, USA
38College of William and Mary, Williamsburg, Virginia 23187-8795, USA
39Yerevan Physics Institute, 375036 Yerevan, Armenia
Received 7 March 2007; published 21 November 2007
The cross section and decay angular distributions for the coherent ϕ-meson photoproduction on the deuteron have been measured for the first time up to a squared four-momentum transfer t=(pγ-pϕ)2=-2 GeV2/c2, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cross sections are compared with predictions from a rescattering model. In a framework of vector meson dominance, the data are consistent with the total ϕ-N cross section σϕN at about 10 mb. If vector meson dominance is violated, a larger σϕN is possible by introducing a larger t slope for the ϕN→ϕN process than that for the γN→ϕN process. The decay angular distributions of the ϕ are consistent with helicity conservation.
© 2007 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.052202
DOI:
10.1103/PhysRevC.76.052202
PACS:
25.20.Lj, 13.60.Le, 13.75.Cs, 14.40.Cs
*Current Address: University of New Hampshire, Durham, New Hampshire 03824-3568, USA. †Current Address: TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 Canada. ‡Current Address: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA. §Current Address: Catholic University of America, Washington, D.C. 20064, USA. **Current Address: Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany. ††Current Address: Edinburgh University, Edinburgh EH9 3JZ, United Kingdom. ‡‡Current Address: University of Massachusetts, Amherst, Massachusetts 01003, USA.
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