Lithium and Beryllium Isotopes with the PAMELA Experiment.

Authors :: W. Menn
E. A. Bogomolov
M. Simon
G. Vasilyev
O. Adriani
G. C. Barbarino
G. A. Bazilevskaya
R. Bellotti
M. Boezio
M. Bongi
V. Bonvicini
S. Bottai
A. Bruno
F. Cafagna
D. Campana
P. Carlson
M. Casolino
G. Castellini
C. De Donato
C. De Santis
Source :: Astrophysical Journal; 8/1/2018, Vol. 862 Issue 2, p1-1, 1p
Publication Year :: 2018
Abstract: The cosmic ray (CR) lithium and beryllium (<superscript>6</superscript>Li, <superscript>7</superscript>Li, <superscript>7</superscript>Be, <superscript>9</superscript>Be, <superscript>10</superscript>Be) isotopic composition has been measured with the satellite-borne experiment PAMELA, which was launched into low-Earth orbit on board the Resurs-DK1 satellite on 2006 June 15. The rare lithium and beryllium isotopes in CRs are believed to originate mainly from the interaction of high-energy carbon, nitrogen, and oxygen nuclei with the interstellar medium (ISM), but also on “tertiary” interactions in the ISM (i.e., produced by further fragmentation of secondary beryllium and boron). In this paper, the isotopic ratios <superscript>7</superscript>Li/<superscript>6</superscript>Li and <superscript>7</superscript>Be/(<superscript>9</superscript>Be + <superscript>10</superscript>Be), measured between 150 and 1100 MeV n<superscript>−1</superscript> using two different detector systems from 2006 July to 2014 September, will be presented. [ABSTRACT FROM AUTHOR]