Reactionspd→3He η andpd→3Heπ+π−near the η threshold

Autor:	A. M. Petrov, J.P. Mouly, Egle Tomasi-Gustafsson, W. T. H. van Oers, W. J. Briscoe, W. W. Jacobs, J. Poitou, R. S. Kessler, B. M. K. Nefkens, B. Tippens, B. Mayer, A. Boudard, A. Moalem, F. Wellers, B. Fabbro, A. van der Schaaf, J. Saudinos, M. Garçon, C. Kerboul, R. Abegg
Rok vydání:	1996
Předmět:	Physics Nuclear and High Energy Physics Proton 010308 nuclear & particles physics Few-body systems 01 natural sciences 7. Clean energy Particle decay Angular distribution Helium-3 0103 physical sciences Production (computer science) Atomic physics 010306 general physics Energy (signal processing)
Zdroj:	Physical Review C. 53:2068-2074
ISSN:	1089-490X 0556-2813
Popis:	The reaction {ital pd}{r_arrow}{sup 3}He{eta} has been studied with the SPES2 spectrometer, for proton energies between 0.2 MeV and 11 MeV above threshold. The total cross section rises from 0.25 to 0.40 {mu}b in this region. The observed energy dependence can be attributed to the strong final state interaction. The angular distribution is nearly isotropic, consistent with {ital S} wave production. A measurement of the {ital pd}{r_arrow}{sup 3}He{pi}{sup +}{pi}{sup {minus}} cross section in the threshold region is also presented. The setup, which is capable of producing 10{sup 5} tagged {eta}/s with only a few percent background, is used to investigate rare {eta} decays. {copyright} {ital 1996 The American Physical Society.}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d504a0b92fb60a764a745e62b788345 https://doi.org/10.1103/physrevc.53.2068 Zobrazit plný text záznamu