✦ LIBER ✦

pp, pD, p4He annihilation cross sections at low energy

✍ Scribed by S. Tessaro

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 304 KB
Volume: 655
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(99)00206-7

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✦ Synopsis

New measurelnents of the )Sp aulfihilation cross section have been performed with the: ' OBELIX apparatus between 37 and 70 MeV/c. From previous samples of data it. was already' clear that the l/p behaviour for the annihilation cross section is drastically modilied at very low momenta, clue to the Coulomb interaction. However, at the lowest measured lnOlnentum (43.6 MeV/c), the annihilation cross section was unexpectedly high; this evidence suggested a more accurate investigation of this region. Furthermore, measurements of annihilation cross section have been perforlned with p impinging on D2 and 4He targets.

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