This title appears in the Scientific Report :
2008
Please use the identifier:
http://hdl.handle.net/2128/7193 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.101.102501 in citations.
Observation of inverse diproton photodisintegration at intermediate energies
Observation of inverse diproton photodisintegration at intermediate energies
The fundamental reaction pp ->{pp}(s)gamma, where {pp}(s) is a proton pair with low excitation energy, has been observed with the ANKE spectrometer at COSY-Julich for proton beam energies of T-p=0.353, 0.500, and 0.550 GeV. This is equivalent to photodisintegration of a free S-1(0) diproton for p...
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Personal Name(s): | Komarov, V. |
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Azaryan, T. / Chiladze, D. / Dymov, S. / Hartmann, M. / Kacharava, A. / Keshelashvili, I. / Khoukaz, A. / Kulikov, A. / Kurbatov, V. / Macharashvili, G. / Merzliakov, S. / Mikirtytchiants, S. / Papenbrock, M. / Nekipelov, M. / Rathmann, F. / Serdyuk, V. / Ströher, H. / Tsirkov, D. / Uzikov, Yu. / Wiklin, C. | |
Contributing Institute: |
Experimentelle Hadrondynamik; IKP-2 |
Published in: | Physical review letters, 101 (2008) S. 102501-1 - 102501-5 |
Imprint: |
College Park, Md.
APS
2008
|
Physical Description: |
102501-1 - 102501-5 |
DOI: |
10.1103/PhysRevLett.101.102501 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physical Review Letters
101 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.101.102501 in citations.
The fundamental reaction pp ->{pp}(s)gamma, where {pp}(s) is a proton pair with low excitation energy, has been observed with the ANKE spectrometer at COSY-Julich for proton beam energies of T-p=0.353, 0.500, and 0.550 GeV. This is equivalent to photodisintegration of a free S-1(0) diproton for photon energies E-gamma approximate to T-p/2. The differential cross sections measured for c.m. angles 0 degrees <theta(pp)< 20 degrees exhibit a steep increase with angle that is compatible with E1 and E2 multipole contributions. The ratio of the measured cross sections to those of np ->gamma d is on the 10(-3)-10(-2) level. The increase of the pp ->{pp}(s)gamma cross section with T-p might reflect the influence of the Delta(1232) excitation. |