Proton-proton fusion in effective field theory
نویسندگان
چکیده
منابع مشابه
Proton–proton fusion in effective field theory to fifth order
The proton–proton fusion process pp → de+νe is calculated at threshold to fifth order in pionless effective field theory. There are two unknown two-body currents contributing at the second and fourth orders. Combined with the previous results for νed and ν̄ed scattering, computed to third order in the same approach, we conclude that a ∼ 10% measurement of reactor ν̄ed scattering measurement could...
متن کاملProton–proton fusion in pionless effective theory
Article history: Received 30 January 2008 Accepted 19 August 2008 Available online 28 August 2008 Editor: W. Haxton PACS: 21.45.Bc 26.20.Cd 26.65.+t The proton–proton fusion reaction, pp → de+ν , is studied in pionless effective field theory (EFT) with di-baryon fields up to next-to leading order. With the aid of the di-baryon fields, the effective range corrections are naturally resummed up to...
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Low energy proton-proton scattering is studied in pionless effective field theory. Employing the dimensional regularization and MS and power divergence subtraction schemes for loop calculation, we calculate the scattering amplitude in S0 channel up to nextto-next-to leading order and fix low-energy constants that appear in the amplitude by effective range parameters. We study regularization sch...
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Emil Ryberg,1 Christian Forssén,1 H.-W. Hammer,2,3,4 and Lucas Platter1,5,* 1Department of Fundamental Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden 2Helmholtz-Institut für Strahlenund Kernphysik, Universität Bonn, 53115, Bonn, Germany 3Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany 4ExtreMe Matter Institute (EMMI), GSI Helmholtzzent...
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Over the last years, very precise data on pion, η and η meson production in proton-proton collisions in the threshold region have been obtained at IUCF, CELSIUS and COSY (for a review, see the talk by H.O. Meyer ). The basic process is pp → pNM , where N denotes the nucleon and M a pseudoscalar meson, in our case the π, π, η or the η. At the respective threshold, the produced meson is soft, i.e...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2001
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.64.044002