Measurement of the in-medium Φ-meson width in proton–nucleus collisions
Abstract
We measured the production of Φ mesons in the collisions of 2.83 GeV protons with C, Cu, Ag, and Au at forward angles via the Φ → K+K- decay using the COSY-ANKE magnetic spectrometer. The Φ meson production cross section follows a target mass dependence of A0.56±0.02 in the momentum region of 0.6-1.6 GeV/c. Moreover, the comparison of the data with model calculations suggests that the in-medium Φ width is about an order of magnitude larger than its free value.
- Authors:
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- Julich Research Centre (Germany); Inst. for Theoretical and Experimental Physics, Moscow (Russia)
- Julich Research Centre (Germany)
- Inst. for Theoretical and Experimental Physics, Moscow (Russia)
- Russian Academy of Sciences (RAS), Moscow (Russian Federation)
- Julich Research Centre (Germany); Tbilisi State Univ. (Germany)
- Univ. of Erlangen, Nuremberg (Germany); Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
- Petersburg Nuclear Physics Inst., Gathina (Russia)
- Helmholtz-Zentrum Dresden Rossendorf (Germany)
- Univ. of Basel (Switzerland)
- Osaka Univ. (Japan)
- Julich Research Centre (Germany); Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
- Julich Research Centre (Germany); Univ. of Bonn (Germany); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- P.N. Lebedev Physical Inst., Moscow (Russia)
- Helmholtz-Zentrum Dresden Rossendorf (Germany); Lomonosov Moscow State Univ., Moscow (Russia)
- Julich Research Centre (Germany); Petersburg Nuclear Physics Inst., Catchina (Russia)
- UCI, London (United Kingdom)
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1008150
- Report Number(s):
- JLAB-THY-10-1195; DOE/OR/23177-1483; arXiv:1008.0232
Journal ID: ISSN 0370-2693; TRN: US1101340
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Volume: 695; Journal Issue: 1-4; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; DECAY; MAGNETIC SPECTROMETERS; MESONS; PRODUCTION; PROTONS; TARGETS; phi meson production; nuclear medium effects
Citation Formats
Polyanskiy, A., Hartmann, M., Kiselev, Yu. T., Paryev, E. Ya., Büscher, M., Chiladze, D., Dymov, S., Dzyuba, A., Gebel, R., Hejny, V., Kämpfer, B., Keshelashvili, I., Koptev, V., Lorentz, B., Maeda, Y., Merzliakov, S., Mikirtytchiants, S., Nekipelov, M., Ohm, H., Schade, H., Serdyuk, V., Sibirtsev, A., Sinitsyna, V. Y., Stein, H. J., Ströher, H., Trusov, S., Valdau, Yu., Wilkin, C., and Wüstner, P. Measurement of the in-medium Φ-meson width in proton–nucleus collisions. United States: N. p., 2010.
Web. doi:10.1016/j.physletb.2010.10.050.
Polyanskiy, A., Hartmann, M., Kiselev, Yu. T., Paryev, E. Ya., Büscher, M., Chiladze, D., Dymov, S., Dzyuba, A., Gebel, R., Hejny, V., Kämpfer, B., Keshelashvili, I., Koptev, V., Lorentz, B., Maeda, Y., Merzliakov, S., Mikirtytchiants, S., Nekipelov, M., Ohm, H., Schade, H., Serdyuk, V., Sibirtsev, A., Sinitsyna, V. Y., Stein, H. J., Ströher, H., Trusov, S., Valdau, Yu., Wilkin, C., & Wüstner, P. Measurement of the in-medium Φ-meson width in proton–nucleus collisions. United States. https://doi.org/10.1016/j.physletb.2010.10.050
Polyanskiy, A., Hartmann, M., Kiselev, Yu. T., Paryev, E. Ya., Büscher, M., Chiladze, D., Dymov, S., Dzyuba, A., Gebel, R., Hejny, V., Kämpfer, B., Keshelashvili, I., Koptev, V., Lorentz, B., Maeda, Y., Merzliakov, S., Mikirtytchiants, S., Nekipelov, M., Ohm, H., Schade, H., Serdyuk, V., Sibirtsev, A., Sinitsyna, V. Y., Stein, H. J., Ströher, H., Trusov, S., Valdau, Yu., Wilkin, C., and Wüstner, P. Thu .
"Measurement of the in-medium Φ-meson width in proton–nucleus collisions". United States. https://doi.org/10.1016/j.physletb.2010.10.050. https://www.osti.gov/servlets/purl/1008150.
@article{osti_1008150,
title = {Measurement of the in-medium Φ-meson width in proton–nucleus collisions},
author = {Polyanskiy, A. and Hartmann, M. and Kiselev, Yu. T. and Paryev, E. Ya. and Büscher, M. and Chiladze, D. and Dymov, S. and Dzyuba, A. and Gebel, R. and Hejny, V. and Kämpfer, B. and Keshelashvili, I. and Koptev, V. and Lorentz, B. and Maeda, Y. and Merzliakov, S. and Mikirtytchiants, S. and Nekipelov, M. and Ohm, H. and Schade, H. and Serdyuk, V. and Sibirtsev, A. and Sinitsyna, V. Y. and Stein, H. J. and Ströher, H. and Trusov, S. and Valdau, Yu. and Wilkin, C. and Wüstner, P.},
abstractNote = {We measured the production of Φ mesons in the collisions of 2.83 GeV protons with C, Cu, Ag, and Au at forward angles via the Φ → K+K- decay using the COSY-ANKE magnetic spectrometer. The Φ meson production cross section follows a target mass dependence of A0.56±0.02 in the momentum region of 0.6-1.6 GeV/c. Moreover, the comparison of the data with model calculations suggests that the in-medium Φ width is about an order of magnitude larger than its free value.},
doi = {10.1016/j.physletb.2010.10.050},
journal = {Physics Letters B},
number = 1-4,
volume = 695,
place = {United States},
year = {Thu Oct 28 00:00:00 EDT 2010},
month = {Thu Oct 28 00:00:00 EDT 2010}
}
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