Proton-induced lithium destruction cross-section and its astrophysical implications

R. G. Pizzone; C. Spitaleri; M. Lattuada; S. Cherubini; A. Musumarra; M. G. Pellegriti; S. Romano; A. Tumino; V. Castellani; S. Degl'Innocenti; A. Imperio

doi:10.1051/0004-6361:20021700

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Volume 398 / No 2 (February I 2003)

A&A, 398 2 (2003) 423-427

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Issue		A&A Volume 398, Number 2, February I 2003


Page(s)		423 - 427
Section		Astrophysical processes
DOI		https://doi.org/10.1051/0004-6361:20021700
Published online		21 January 2003

A&A 398, 423-427 (2003)

Proton-induced lithium destruction cross-section and its astrophysical implications

R. G. Pizzone¹^,2^,3, C. Spitaleri¹^,2, M. Lattuada²^,4, S. Cherubini⁵, A. Musumarra¹^,2, M. G. Pellegriti¹^,2, S. Romano¹^,2, A. Tumino¹^,2, V. Castellani⁶, S. Degl'Innocenti⁶ and A. Imperio⁶

¹ Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Università di Catania, Catania, Italy
² Laboratori Nazionali del Sud-INFN, Catania, Italy
³ Centro Siciliano Fisica Nucleare e Struttura della Materia, Catania, Italy
⁴ Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy
⁵ Ruhr Universität Bochum, Bochum, Germany
⁶ Dipartimento di Fisica, Università di Pisa, Pisa, Italy

Corresponding author: C. Spitaleri, spitaleri@lns.infn.it

Received: 18 July 2002
Accepted: 29 October 2002

Abstract

Knowledge of the primordial nucleosynthesis offers a powerful tool to retrieve information on the baryon density of the Universe. In this context lithium isotopes play a crucial role and in particular we stress how important the bare nucleus cross-section for the ⁷Li(p, $\alpha)^4$ He reaction is. Recent application of the Trojan Horse Method led to an indirect measurement of that cross-section. In the present paper its astrophysical implications are examined in the case of the Solar lithium problem and of the primordial nucleosynthesis.

Key words: nuclear reactions, nucleosynthesis, abundances / Sun: abundances / cosmology: cosmological parameters

© ESO, 2003

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