Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

Crystal Ball Collaboration MAMI; E. F. McNicoll; S. Prakhov; I. I. Strakovsky; P. Aguar-Bartolome; L. K. Akasoy; J. R. M. Annand; H. J. Arends; R. A. Arndt; Ya. I. Azimov; K. Bantawa; R. Beck; V. S. Bekrenev; H. Berghaeuser; A. Braghieri; D. Branford; W. J. Briscoe; J. Brudvik; S. Cherepnya; R. F. B. Codling; B. T. Demissie; E. J. Downie; P. Drexler; L. V. Fil'kov; A. Fix; B. Freehart; D. I. Glazier; R. Gregor; D. Hamilton; E. Heid; D. Hornidge; I. Jaegle; O. Jahn; T. C. Jude; V. L. Kashevarov; J. D. Kellie; I. Keshelashvili; R. Kondratiev; M. Korolija; M. Kotulla; A. A. Koulbardis; S. P. Kruglov; B. Krusche; V. Lisin; K. Livingston; I. J. D. MacGregor; Y. Maghrbi; D. M. Manley; Z. Marinides; M. Martinez; D. P. Watts

doi:10.1103/PhysRevC.82.035208

Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

Crystal Ball Collaboration MAMI, E. F. McNicoll, S. Prakhov, I. I. Strakovsky, P. Aguar-Bartolome, L. K. Akasoy, J. R. M. Annand, H. J. Arends, R. A. Arndt, Ya. I. Azimov, K. Bantawa, R. Beck, V. S. Bekrenev, H. Berghaeuser, A. Braghieri, D. Branford, W. J. Briscoe, J. Brudvik, S. Cherepnya, R. F. B. CodlingB. T. Demissie, E. J. Downie, P. Drexler, L. V. Fil'kov, A. Fix, B. Freehart, D. I. Glazier, R. Gregor, D. Hamilton, E. Heid, D. Hornidge, I. Jaegle, O. Jahn, T. C. Jude, V. L. Kashevarov, J. D. Kellie, I. Keshelashvili, R. Kondratiev, M. Korolija, M. Kotulla, A. A. Koulbardis, S. P. Kruglov, B. Krusche, V. Lisin, K. Livingston, I. J. D. MacGregor, Y. Maghrbi, D. M. Manley, Z. Marinides, M. Martinez, D. P. Watts

School of Physics and Astronomy

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Abstract

The gamma p -> eta p reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 <= W <= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10(6) gamma p -> eta p -> 3 pi(0) p -> 6 gamma p events allows a detailed study of the reaction dynamics. The gamma p -> eta p differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.

Original language	English
Article number	035208
Pages (from-to)	-
Number of pages	12
Journal	Physical Review C
Volume	82
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.82.035208
Publication status	Published - 22 Sept 2010

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10.1103/PhysRevC.82.035208

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Crystal Ball Collaboration MAMI, McNicoll, E. F., Prakhov, S., Strakovsky, I. I., Aguar-Bartolome, P., Akasoy, L. K., Annand, J. R. M., Arends, H. J., Arndt, R. A., Azimov, Y. I., Bantawa, K., Beck, R., Bekrenev, V. S., Berghaeuser, H., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J., Cherepnya, S., ... Watts, D. P. (2010). Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C). Physical Review C, 82(3), -. Article 035208. https://doi.org/10.1103/PhysRevC.82.035208

@article{661ada24d13c40ef90c566553139a826,

title = "Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)",

abstract = "The gamma p -> eta p reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 <= W <= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10(6) gamma p -> eta p -> 3 pi(0) p -> 6 gamma p events allows a detailed study of the reaction dynamics. The gamma p -> eta p differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.",

author = "\{Crystal Ball Collaboration MAMI\} and McNicoll, \{E. F.\} and S. Prakhov and Strakovsky, \{I. I.\} and P. Aguar-Bartolome and Akasoy, \{L. K.\} and Annand, \{J. R. M.\} and Arends, \{H. J.\} and Arndt, \{R. A.\} and Azimov, \{Ya. I.\} and K. Bantawa and R. Beck and Bekrenev, \{V. S.\} and H. Berghaeuser and A. Braghieri and D. Branford and Briscoe, \{W. J.\} and J. Brudvik and S. Cherepnya and Codling, \{R. F. B.\} and Demissie, \{B. T.\} and Downie, \{E. J.\} and P. Drexler and Fil'kov, \{L. V.\} and A. Fix and B. Freehart and Glazier, \{D. I.\} and R. Gregor and D. Hamilton and E. Heid and D. Hornidge and I. Jaegle and O. Jahn and Jude, \{T. C.\} and Kashevarov, \{V. L.\} and Kellie, \{J. D.\} and I. Keshelashvili and R. Kondratiev and M. Korolija and M. Kotulla and Koulbardis, \{A. A.\} and Kruglov, \{S. P.\} and B. Krusche and V. Lisin and K. Livingston and MacGregor, \{I. J. D.\} and Y. Maghrbi and Manley, \{D. M.\} and Z. Marinides and M. Martinez and Watts, \{D. P.\}",

year = "2010",

month = sep,

day = "22",

doi = "10.1103/PhysRevC.82.035208",

language = "English",

volume = "82",

pages = "--",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

}

Crystal Ball Collaboration MAMI, McNicoll, EF, Prakhov, S, Strakovsky, II, Aguar-Bartolome, P, Akasoy, LK, Annand, JRM, Arends, HJ, Arndt, RA, Azimov, YI, Bantawa, K, Beck, R, Bekrenev, VS, Berghaeuser, H, Braghieri, A, Branford, D, Briscoe, WJ, Brudvik, J, Cherepnya, S, Codling, RFB, Demissie, BT, Downie, EJ, Drexler, P, Fil'kov, LV, Fix, A, Freehart, B, Glazier, DI, Gregor, R, Hamilton, D, Heid, E, Hornidge, D, Jaegle, I, Jahn, O, Jude, TC, Kashevarov, VL, Kellie, JD, Keshelashvili, I, Kondratiev, R, Korolija, M, Kotulla, M, Koulbardis, AA, Kruglov, SP, Krusche, B, Lisin, V, Livingston, K, MacGregor, IJD, Maghrbi, Y, Manley, DM, Marinides, Z, Martinez, M & Watts, DP 2010, 'Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)', Physical Review C, vol. 82, no. 3, 035208, pp. -. https://doi.org/10.1103/PhysRevC.82.035208

TY - JOUR

T1 - Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

AU - Crystal Ball Collaboration MAMI

AU - McNicoll, E. F.

AU - Prakhov, S.

AU - Strakovsky, I. I.

AU - Aguar-Bartolome, P.

AU - Akasoy, L. K.

AU - Annand, J. R. M.

AU - Arends, H. J.

AU - Arndt, R. A.

AU - Azimov, Ya. I.

AU - Bantawa, K.

AU - Beck, R.

AU - Bekrenev, V. S.

AU - Berghaeuser, H.

AU - Braghieri, A.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brudvik, J.

AU - Cherepnya, S.

AU - Codling, R. F. B.

AU - Demissie, B. T.

AU - Downie, E. J.

AU - Drexler, P.

AU - Fil'kov, L. V.

AU - Fix, A.

AU - Freehart, B.

AU - Glazier, D. I.

AU - Gregor, R.

AU - Hamilton, D.

AU - Heid, E.

AU - Hornidge, D.

AU - Jaegle, I.

AU - Jahn, O.

AU - Jude, T. C.

AU - Kashevarov, V. L.

AU - Kellie, J. D.

AU - Keshelashvili, I.

AU - Kondratiev, R.

AU - Korolija, M.

AU - Kotulla, M.

AU - Koulbardis, A. A.

AU - Kruglov, S. P.

AU - Krusche, B.

AU - Lisin, V.

AU - Livingston, K.

AU - MacGregor, I. J. D.

AU - Maghrbi, Y.

AU - Manley, D. M.

AU - Marinides, Z.

AU - Martinez, M.

AU - Watts, D. P.

PY - 2010/9/22

Y1 - 2010/9/22

N2 - The gamma p -> eta p reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 <= W <= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10(6) gamma p -> eta p -> 3 pi(0) p -> 6 gamma p events allows a detailed study of the reaction dynamics. The gamma p -> eta p differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.

AB - The gamma p -> eta p reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 <= W <= 1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and momentum analyzed by the Glasgow tagging spectrometer were used for the eta-meson production. Our accumulation of 3.8 x 10(6) gamma p -> eta p -> 3 pi(0) p -> 6 gamma p events allows a detailed study of the reaction dynamics. The gamma p -> eta p differential cross sections were determined for 120 energy bins and the full range of the production angles. Our data show a dip near W = 1680 MeV in the total cross section caused by a substantial dip in eta production at forward angles. The data are compared to predictions of previous SAID and MAID partial-wave analyses and to the latest SAID and MAID fits that included our data.

UR - https://www.scopus.com/pages/publications/77957316932

U2 - 10.1103/PhysRevC.82.035208

DO - 10.1103/PhysRevC.82.035208

M3 - Article

SN - 0556-2813

VL - 82

SP - -

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 035208

ER -

Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

Abstract

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Illuminating strongly interacting matter

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Experimental study of the gamma p -> eta p reaction with the Crystal Ball detector at the Mainz Microtron (MAMI-C)

Abstract

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Illuminating strongly interacting matter

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