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APS » Journals » Phys. Rev. Lett. » Volume 82 » Issue 24
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Phys. Rev. Lett. 82, 4775–4778 (1999)

Measurement of Proton-Proton Bremsstrahlung at 389 MeV

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K. Yasuda1, H. Akiyoshi5, T. Hotta1, K. Imai2, M. Kato1, M. Kawabata1,*, Y. Maeda1, N. Matsuoka1, T. Matsuzuka1, Y. Mizuno1, T. Murakami2, J. Murata2, I. Nakagawa3, M. Nomachi1, T. Noro1, Y. Sugaya1, K. Takahisa1, T. Tamae3, K. Tamura1,†, H. Tsubota4, Y. Yokota1, H. P. Yoshida1, M. Yoshimura1, and Y. Yuasa1
1Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047, Japan
2Department of Physics, Kyoto University, Kyoto 606-8502, Japan
3Laboratory of Nuclear Science, Tohoku University, Sendai 982-0826, Japan
4Department of Physics, Tohoku University, Sendai 980-8578, Japan
5RIKEN, Institute of Physics and Chemical Research, Wako 351-0106, Japan

Received 16 December 1998; published in the issue dated 14 June 1999

Proton-proton bremsstrahlung cross sections have been measured at 389 MeV incident energy. A two-arm spectrometer and a liquid hydrogen target system have been used to measure the proton-proton bremsstrahlung events with small background. At the present kinematical conditions, an enhancement of the cross sections due to the Δ current contribution is predicted. The measured cross sections are larger than the theoretical predictions including the Δ current contribution.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.4775
DOI:
10.1103/PhysRevLett.82.4775
PACS:
25.10.+s, 13.75.Cs, 21.30.-x

*Present address: Laboratory of Nuclear Science, Tohoku University, Sendai, 982-0826 Japan.

†Present address: Fukui Medical University, Fukui, 910-1104 Japan.

 
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