Total photoabsorption cross section for {sup 4}He from 200 to 800 MeV

Journal Article · Fri Feb 28 23:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.1033· OSTI ID:524405

MacCormick, M; Habermann, J; Audit, G; dHose, N; Tamas, G; Zabrodin, A ^[1]; Braghieri, A; Pedroni, P; Pinelli, T ^[2]; Pinelli, T ^[3]; Ahrens, J; Beck, R; Isbert, V; Wartenberg, S ^[4]; Habermann, J ^[5]; Zabrodin, A ^[6]; Galler, G ^[7]

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1. CEA-DAPNIA/SPhN, C.E. Saclay, F-91191 Gif sur Yvette (France)
2. Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via Bassi 6, I-27100 Pavia (Italy)
3. Dipartimento di Fisica Nucleare e Teorica, Universita degli Studi di Pavia, via Bassi 6, I-27100 Pavia (Italy)
4. Institut fuer Kernphysik, Universitaet Mainz, I-55099 Mainz (Germany)
5. Physikalisches Institut, Universitaet Tuebingen, D-72076 Tuebingen (Germany)
6. Institute for Nuclear Research, 7a, Prospect 60 Let Oktyabrya, 117312, Moscow (Russia)
7. II. Physikalisches Institut, Universitaet Goettingen, D-37073 Goettingen (Germany)

The total photoabsorption cross section for {sup 4}He has been measured for the first time over a wide photon energy range (200 MeV{le}E{sub {gamma}}{le}800 MeV). By using the large acceptance detector DAPHNE at the tagged photon facility of the MAMI microtron in Mainz high precision results with small systematic errors were obtained. This measurement shows that {sup 4}He has a behavior similar to heavy nuclei and, in particular, a reduction of the cross section with respect to the lighter nuclei is found for E{sub {gamma}}{gt}600 MeV. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 524405
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 55; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HEAVY NUCLEI
HELIUM 4 TARGET
LIGHT NUCLEI
MASS NUMBER
MEV RANGE 100-1000
PHOTONUCLEAR REACTIONS
RESONANCE ABSORPTION
TOTAL CROSS SECTIONS