Cross section of [Formula Presented] He measured at solar energies

M. Junker, A. D’Alessandro, S. Zavatarelli, C. Arpesella, E. Bellotti, C. Broggini, P. Corvisiero, G. Fiorentini, A. Fubini, G. Gervino, U. Greife, C. Gustavino, J. Lambert, P. Prati, W.S. Rodney, C. Rolfs, F. Strieder, H.P. Trautvetter, D. Zahnow

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We report on the results of the [Formula Presented] experiment at the underground accelerator facility LUNA (Gran Sasso). For the first time the lowest projectile energies utilized for the cross section measurement correspond to energies below the center of the solar Gamow peak [Formula Presented]. The data provide no evidence for the existence of a hypothetical resonance in the energy range investigated. Although no extrapolation is needed anymore (except for energies at the low-energy tail of the Gamow peak), the data must be corrected for the effects of electron screening, clearly observed the first time for the [Formula Presented] reaction. The effects are, however, larger than expected and not understood, leading presently to the largest uncertainty on the quoted [Formula Presented] value for bare nuclides (=5.40 MeV b). © 1998 The American Physical Society.
Original languageEnglish
Pages (from-to)2700 - 2710
Number of pages11
JournalPhysical Review C - Nuclear Physics
Issue number5
Publication statusPublished - 1998
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Junker, M., D’Alessandro, A., Zavatarelli, S., Arpesella, C., Bellotti, E., Broggini, C., ... Zahnow, D. (1998). Cross section of [Formula Presented] He measured at solar energies. Physical Review C - Nuclear Physics, 57(5), 2700 - 2710.