Photoproduction of ω mesons off protons and neutrons

被引：19

作者：

Dietz, F. ^{[1
]}

Metag, V. ^{[1
]}

Anisovich, A. V. ^{[2
,7
]}

Bacelar, J. C. S. ^{[5
]}

Bantes, B. ^{[3
]}

Bartholomy, O. ^{[2
]}

Bayadilov, D. E. ^{[2
,7
]}

Beck, R. ^{[2
]}

Belogazov, Y. A. ^{[7
]}

Castelijns, R. ^{[5
]}

Crede, V. ^{[6
]}

Dutz, H. ^{[3
]}

Elsner, D. ^{[3
]}

Ewald, R. ^{[3
]}

Frommberger, F. ^{[3
]}

Funke, C. ^{[2
]}

Gothe, R. ^{[3
]}

Gregor, R. ^{[1
]}

Gridnev, A. B. ^{[7
]}

Gutz, E. ^{[2
]}

Hillert, W. ^{[3
]}

Hoeffgren, S. ^{[3
]}

Hoffmeister, P. ^{[2
]}

Horn, I. ^{[2
]}

Jaegle, I. ^{[4
]}

Junkersfeld, J. ^{[2
]}

Kalinowsky, H. ^{[2
]}

Kammer, S. ^{[3
]}

Kleber, V. ^{[3
]}

Klein, Frank ^{[3
]}

Klein, Friedrich ^{[3
]}

Klempt, E. ^{[2
]}

Konrad, M. ^{[3
]}

Kotulla, M. ^{[1
]}

Krusche, B. ^{[4
]}

Lang, M. ^{[2
]}

Lohner, H. ^{[5
]}

Lopatin, I. V. ^{[7
]}

Lugert, S. ^{[1
]}

Menze, D. ^{[3
]}

Mertens, T. ^{[4
]}

Messchendorp, J. G. ^{[5
]}

Nikonov, V. A. ^{[2
,7
]}

Nanova, M. ^{[1
]}

Novinski, D. V. ^{[2
,7
]}

Novotny, R. ^{[1
]}

Ostrick, M. ^{[3
]}

Pant, L. M. ^{[1
]}

van Pee, H. ^{[2
]}

Pfeiffer, M. ^{[1
]}

机构：

[1] Univ Giessen, Inst Phys 2, Giessen, Germany

[2] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Bonn, Germany

[3] Univ Bonn, Inst Phys, Bonn, Germany

[4] Univ Basel, Dept Phys, CH-4003 Basel, Switzerland

[5] Univ Groningen, Kernfys Versneller Inst, NL-9700 AB Groningen, Netherlands

[6] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[7] Petersburg Nucl Phys Inst Gatchina, Gatchina, Russia

[8] Univ Giessen, Inst Theoret Phys, Giessen, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2015年 / 51卷 / 01期

基金：

美国国家科学基金会;

关键词：

NUCLEI; SPECTROMETER; WIDTH;

D O I：

10.1140/epja/i2015-15006-3

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：

omega photoproduction off hydrogen and deuterium has been studied with the tagged photon beam of the ELSA accelerator in Bonn for photon energies up to 2.0 GeV. The omega meson has been identified via the omega -> pi(0) gamma -> gamma gamma gamma decay mode, using the combined setup of the Crystal Barrel/TAPS detector systems. Both inclusive and exclusive analyses have been carried out. Differential and total cross-sections have been derived for omega mesons produced off free protons and off protons and neutrons bound in deuterium. The cross-section for the production off the bound neutron is found to be a factor of a parts per thousand 1.3 larger than the one off the bound proton in the incident beam energy region 1.2 GeV < E (gamma) < 1.6 GeV. For higher incident beam energies this factor goes down to a parts per thousand 1.1 at 2.0 GeV. The cross-sections of this work have been used as normalization for transparency ratio measurements.

引用

页码：1 / 16

页数：16

共 50 条

[1] Photoproduction of ω mesons off protons and neutrons
F. Dietz
V. Metag
A. V. Anisovich
J. C. S. Bacelar
B. Bantes
O. Bartholomy
D. E. Bayadilov
R. Beck
Y. A. Belogazov
R. Castelijns
V. Crede
H. Dutz
D. Elsner
R. Ewald
F. Frommberger
C. Funke
R. Gothe
R. Gregor
A. B. Gridnev
E. Gutz
W. Hillert
S. Höffgren
P. Hoffmeister
I. Horn
I. Jaegle
J. Junkersfeld
H. Kalinowsky
S. Kammer
V. Kleber
Frank Klein
Friedrich Klein
E. Klempt
M. Konrad
M. Kotulla
B. Krusche
M. Lang
H. Löhner
I. V. Lopatin
S. Lugert
D. Menze
T. Mertens
J. G. Messchendorp
V. A. Nikonov
M. Nanova
D. V. Novinski
R. Novotny
M. Ostrick
L. M. Pant
H. van Pee
M. Pfeiffer
[J]. The European Physical Journal A, 2015, 51
[2] Quasifree photoproduction of η mesons off protons and neutrons
Werthmueller, D.
Witthauer, L.
Keshelashvili, I.
Aguar-Bartolome, P.
Ahrens, J.
Annand, J. R. M.
Arends, H. J.
Bantawa, K.
Beck, R.
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Braghieri, A.
Branford, D.
Briscoe, W. J.
Brudvik, J.
Cherepnya, S.
Costanza, S.
Demissie, B.
Dieterle, M.
Downie, E. J.
Drexler, P.
Fil'kov, L. V.
Fix, A.
Glazier, D. I.
Hamilton, D.
Heid, E.
Hornidge, D.
Howdle, D.
Huber, G. M.
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Jahn, O.
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Kaeser, A.
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Kammer, S.
Klein, Frank
Klein, Friedrich
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Konrad, M.
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Langheinrich, J.
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Lopatin, I. V.
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Mertens, T.
Messchendorp, J. G.
Metag, V.
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[4] Photoproduction of η -mesons off protons
O. Bartholomy
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I. Fabry
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G. Anton
R. Bantes
Y. A. Beloglazov
R. Castelijns
A. Ehmanns
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R. Gothe
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J. Junkersfeld
H. Kalinowsky
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A. V. Sarantsev
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[5] Photoproduction of η-mesons off protons
Bartholomy, O.
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Bantes, R.
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Castelijns, R.
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Loehner, H.
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Nikonov, V. A.
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[J]. EUROPEAN PHYSICAL JOURNAL A, 2007, 33 (02): : 133 - 146
[6] Photoproduction of π0 mesons off protons and neutrons in the second and third nucleon resonance regions
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[7] Photoproduction of π0-pairs off protons and off neutrons
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Oberle, M.
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Beck, R.
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Braghieri, A.
Branford, D.
Briscoe, W. J.
Brudvik, J.
Cherepnya, S.
Costanza, S.
Demissie, B.
Downie, E. J.
Drexler, P.
Fil'kov, L. V.
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Garni, S.
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Heid, E.
Hornidge, D.
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Kashevarov, V. L.
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Demissie, B.
Downie, E. J.
Drexler, P.
Fil'kov, L. V.
Fix, A.
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Heid, E.
Hornidge, D.
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Jaegle, I.
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Lisin, V.
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MacGregor, I. J. D.
Maghrbi, Y.
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Marinides, Z.
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