Effect of beam energy straggling on resonant yield in thin gas targets: The cases 22Ne(p, γ)23Na and 14N(p, γ)15O

D. Bemmerer; F. Cavanna; R. Depalo; M. Aliotta; M. Anders; A. Boeltzig; C. Broggini; C. Bruno; A. Caciolli; T. Chillery; P. Corvisiero; T. Davinson; Z. Elekes; F. Ferraro; A. Formicola; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyürky; R. Menegazzo; V. Mossa; F. R. Pantaleo; P. Prati; D. A. Scott; K. Stöcker; O. Straniero; T. Szücs; M. P. Takács; D. Trezzi

doi:10.1209/0295-5075/122/52001

All issues

Volume 122 / No 5 (June 2018)

EPL, 122 5 (2018) 52001

Abstract

Issue		EPL Volume 122, Number 5, June 2018


Article Number		52001
Number of page(s)		5
Section		Nuclear Physics
DOI		https://doi.org/10.1209/0295-5075/122/52001
Published online		12 July 2018

EPL, 122 (2018) 52001

Effect of beam energy straggling on resonant yield in thin gas targets: The cases ²²Ne(p, γ)²³Na and ¹⁴N(p, γ)¹⁵O

The Luna Collaboration, D. Bemmerer¹^(a), F. Cavanna², R. Depalo³^,4, M. Aliotta⁵, M. Anders¹^,6, A. Boeltzig⁷, C. Broggini³, C. Bruno⁵, A. Caciolli³, T. Chillery⁵, P. Corvisiero², T. Davinson⁵, Z. Elekes⁸, F. Ferraro², A. Formicola⁹, Zs. Fülöp⁸, G. Gervino¹⁰, A. Guglielmetti¹¹^,12, C. Gustavino¹³, Gy. Gyürky⁸, R. Menegazzo³, V. Mossa¹⁴, F. R. Pantaleo¹⁴, P. Prati², D. A. Scott⁵, K. Stöcker¹^,6, O. Straniero⁹^,15, T. Szücs⁸, M. P. Takács¹^,6 and D. Trezzi¹²

¹ Helmholtz-Zentrum Dresden-Rossendorf (HZDR) - Dresden, Germany
² Dipartimento di Fisica, Università di Genova, and INFN, Sezione di Genova - Genova, Italy
³ INFN, Sezione di Padova - Padova, Italy
⁴ Dipartimento di Fisica e Astronomia, Università di Padova - Padova, Italy
⁵ SUPA, School of Physics and Astronomy, University of Edinburgh - Edinburgh, UK
⁶ Technische Universität Dresden - Dresden, Germany
⁷ Gran Sasso Science Institute- L'Aquila, Italy
⁸ Institute of Nuclear Research (ATOMKI) - Debrecen, Hungary
⁹ INFN, Laboratori Nazionali del Gran Sasso - Assergi, Italy
¹⁰ Dipartimento di Fisica Sperimentale, Università di Torino, and INFN, Sezione di Torino - Torino, Italy
¹¹ Università degli Studi di Milano - Milano, Italy
¹² INFN, Sezione di Milano - Milano, Italy
¹³ INFN, Sezione di Roma and Università “La Sapienza” - Roma, Italy
¹⁴ Università degli Studi di Bari and INFN, Sezione di Bari - Bari, Italy
¹⁵ Osservatorio Astronomico di Collurania - Teramo, Italy

^(a) d.bemmerer@hzdr.de

Received: 31 May 2018
Accepted: 26 June 2018

Abstract

When deriving resonance strengths using the thick-target yield approximation, for very narrow resonances it may be necessary to take beam energy straggling into account. This applies to gas targets of a few keV width, especially if there is some additional structure in target stoichiometry or detection efficiency. The correction for this effect is shown and tested on recent studies of narrow resonances in the $^{22}{\text{Ne}}(\text{p},\gamma)^{23}\text{Na}$ and ${^{14}\text{N}}(\text{p},\gamma)^{15}\text{O}$ reactions.

PACS: 25.40.Ny – Resonance reactions / 26.20.Cd – Stellar hydrogen burning / 25.40.Lw – Radiative capture

© EPLA, 2018

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