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The pd -> He-3 eta pi(0) reaction at T-p=1450 MeV CELSIUS/WASA Collaboration

Schonning, K. (author)
Bargholtz, Christoph (author)
Stockholms universitet,Fysikum
Bashkanov, M. (author)
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Berlowski, M. (author)
Bogoslawsky, D. (author)
Calen, H. (author)
Clement, H. (author)
Demiroers, L. (author)
Ekstrom, C. (author)
Fransson, K. (author)
Gerén, Linda (author)
Stockholms universitet,Fysikum
Gustafsson, L. (author)
Hoistad, B. (author)
Ivanov, G. (author)
Jacewicz, M. (author)
Jiganov, E. (author)
Johansson, T. (author)
Keleta, S. (author)
Khakimova, O. (author)
Kren, F. (author)
Kullander, S. (author)
Kupsc, A. (author)
Kuzmin, A. (author)
Lindberg, Karl (author)
Stockholms universitet,Fysikum
Marciniewski, P. (author)
Morosov, B. (author)
Oelert, W. (author)
Pauly, C. (author)
Petren, H. (author)
Petukhov, Y. (author)
Povtorejko, A. (author)
Scobel, W. (author)
Shafigullin, R. (author)
Shwartz, B. (author)
Skorodko, T. (author)
Sopov, V. (author)
Stepaniak, J. (author)
Tegnér, Per-Erik (author)
Stockholms universitet,Fysikum
Engblom, Pia Thörngren (author)
Stockholms universitet,Fysikum
Tikhomirov, V. (author)
Turowiecki, A. (author)
Wagner, G. J. (author)
Wilkin, C. (author)
Wolke, M. (author)
Zabierowski, J. (author)
Zartova, Irina (author)
Stockholms universitet,Fysikum
Zlomanczuk, J. (author)
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 (creator_code:org_t)
Elsevier BV, 2010
2010
English.
In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 685:1, s. 33-37
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The cross section for the pd -> He-3 eta pi(0) reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring. The He-3 was detected in coincidence with four photons from the decays of the two mesons. The data indicate that the production mechanism involves the formation of the Delta(1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant mass distributions Of all three pairs of final particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the pi(0) momentum in the He-3 pi(0) system.

Keyword

eta
pi(0) meson production
invariant-mass distribution
Delta resonance
NATURAL SCIENCES
NATURVETENSKAP

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