Ryezayeva N, Arenhövel H, Burda O, Byelikov A, Chernykh M, Enders J, Griesshammer HW, Kalmykov Y, von Neumann-Cosel P, Ozel B, Poltoratska I, Pysmenetska I, Rangacharyulu C, Rathi S, Richter A, Schrieder G, Shevchenko A, Yevetska O. Measurement of the reaction 2H(e,e') at 180 degrees close to the deuteron breakup threshold.
PHYSICAL REVIEW LETTERS 2008;
100:172501. [PMID:
18518283 DOI:
10.1103/physrevlett.100.172501]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Indexed: 05/26/2023]
Abstract
Inclusive inelastic electron scattering off the deuteron under 180 degrees has been studied at the S-DALINAC close to the breakup threshold at momentum transfers q=0.27 fm;{-1} and 0.74 fm;{-1} with good energy resolution sufficient to map in detail the spin flip M1 response, which governs the starting reaction pn-->dgamma of big-bang nucleosynthesis over most of the relevant temperature region. Results from potential model calculations and (for q=0.27 fm;{-1}) from pionless nuclear effective field theory are in excellent agreement with the data.
Collapse