Low-energy d plus d fusion reactions via the Trojan Horse Method

0365194 - ÚJF 2012 RIV NL eng J - Článek v odborném periodiku
Tumino, A. - Spitaleri, C. - Mukhamedzhanov, A. - Typel, S. - Burjan, Václav - Del Santo, M. G. - Kiss, G. G. - Kroha, Václav - Hons, Zdeněk - La Cognata, M. - Lamia, L. - Mrázek, Jaromír - Pizzone, R. G. - Piskoř, Štěpán - Rapisarda, G. G. - Romano, S. - Sergi, M. L. - Sparta, R. - Aliotta, M.
Low-energy d plus d fusion reactions via the Trojan Horse Method.
Physics Letters. B. Roč. 700, č. 2 (2011), s. 111-115. ISSN 0370-2693. E-ISSN 1873-2445
Grant CEP: GA MŠMT LC07050; GA MŠMT(CZ) LH11001; GA ČR GAP203/10/0310
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: Nuclear astrophysics * Nucleosynthesis * Plasma physics * Few-body physics
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 3.955, rok: 2011

The bare nucleus S(E) factors for the (2)H(d, p)(3)H and (2)H(d.n)(3)He reactions have been measured for the first time via the Trojan Horse Method off the proton in (3)He from 1.5 MeV down to 2 key. This range overlaps with the relevant region for Standard Big Bang Nucleosynthesis as well as with the thermal energies of future fusion reactors and deuterium burning in the Pre-Main-Sequence phase of stellar evolution. This is the first pioneering experiment in quasi free regime where the charged spectator is detected. Both the energy dependence and the absolute value of the S(E) factors deviate by more than 15% from available direct data with new S(0) values of 57.4 +/- 1.8 MeVb for (3)H + p and 60.1 +/- 1.9 MeV b for (3)He + n. None of the existing fitting curves is able to provide the correct slope of the new data in the full range, thus calling for a revision of the theoretical description.
Trvalý link: http://hdl.handle.net/11104/0200493