Measurement of the γp → K0Σ+ reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron

被引:18
作者
Aguar-Bartolome, P. [1 ]
Annand, J. R. M. [2 ]
Arends, H. J. [1 ]
Bantawa, K. [3 ]
Beck, R. [4 ]
Bekrenev, V. [5 ]
Berghaeuser, H. [6 ]
Braghieri, A. [7 ]
Briscoe, W. J. [8 ]
Brudvik, J. [9 ]
Cherepnya, S. [10 ]
Codling, R. F. B. [2 ]
Collicott, C. [11 ,12 ]
Demissie, B. [8 ]
Dieterle, M. [13 ]
Downie, E. J. [1 ,8 ]
Drexler, P. [6 ]
Fil'kov, L. V. [10 ]
Fix, A. [14 ]
Glazier, D. I. [15 ]
Gregor, R. [6 ]
Hamilton, D. [2 ]
Heid, E. [1 ,8 ]
Hornidge, D. [16 ]
Howdle, D. [2 ]
Isaksson, L. [17 ]
Jaegle, I. [13 ]
Jahn, O. [1 ]
Jude, T. C. [15 ]
Kashevarov, V. L. [1 ,10 ]
Keshelashvili, I. [13 ]
Kondratiev, R. [18 ]
Korolija, M. [19 ]
Kotulla, M. [6 ]
Koulbardis, A. [5 ]
Kruglov, S. [5 ]
Krusche, B. [13 ]
Lisin, V. [18 ]
Livingston, K. [2 ]
MacGregor, I. J. D. [2 ]
Maghrbi, Y. [13 ]
Mancel, J. [2 ]
Manley, D. M. [3 ]
McNicoll, E. F. [2 ]
Mekterovic, D. [19 ]
Metag, V. [6 ]
Mushkarenkov, A. [7 ]
Nefkens, B. M. K. [9 ]
Nikolaev, A. [4 ]
Novotny, R. [6 ]
机构
[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[2] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[3] Kent State Univ, Kent, OH 44242 USA
[4] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
[5] Petersburg Nucl Phys Inst, Gatchina 188350, Russia
[6] Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany
[7] INFN Ses Pavia, I-27100 Pavia, Italy
[8] George Washington Univ, Washington, DC 20052 USA
[9] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[10] PN Lebedev Phys Inst, Moscow 119991, Russia
[11] Dalhousie Univ, Halifax, NS B3H 4R2, Canada
[12] St Marys Univ, Halifax, NS B3H 3C3, Canada
[13] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
[14] Tomsk Polytech Univ, Lab Math Phys, Tomsk 634050, Russia
[15] Univ Edinburgh, Sch Phys, SUPA, Edinburgh EH9 3JZ, Midlothian, Scotland
[16] Mt Allison Univ, Sackville, NB E4L 1E6, Canada
[17] Lund Univ, SE-22100 Lund, Sweden
[18] Inst Nucl Res, Moscow 125047, Russia
[19] Rudjer Boskovic Inst, HR-10000 Zagreb, Croatia
[20] Catholic Univ Amer, Washington, DC 20064 USA
来源
PHYSICAL REVIEW C | 2013年 / 88卷 / 04期
基金
美国国家科学基金会; 英国科学技术设施理事会; 加拿大自然科学与工程研究理事会;
关键词
PHOTON ENERGIES; SPECTROMETER; PHOTOPRODUCTION;
D O I
10.1103/PhysRevC.88.044601
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The gamma p -> K-0 Sigma(+) reaction has been measured from threshold to E-gamma = 1.45 GeV (W-CM = 1.9 GeV) using the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. In the present experiment, this reaction was searched for in the 3 pi(0)p final state, by assuming K-S(0) -> pi(0)pi(0) and Sigma(+) -> pi(0)p. The experimental results include total and differential cross sections as well as the polarization of the recoil hyperon. The new data significantly improve empirical knowledge about the gamma p -> K-0 Sigma(+) reaction in the measured energy range. The results are compared to previous measurements and model predictions. It is demonstrated that adding the present gamma p -> K-0 Sigma(+) results to existing data allowed a better description of this reaction with various models.
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页数:11
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