Eur. Phys. J. C 23, 61-64 (2002)
https://doi.org/10.1007/s100520100854

Investigating the DAMA annual modulation data in the framework of inelastic dark matter

¹ Dip. di Fisica, Universita' di Roma ``Tor Vergata'' and INFN, sez. Roma2, 00133 Roma, Italy
<sup>2</sup> Dip. di Fisica, Universita' di Roma ``La Sapienza'' and INFN, sez. Roma, 00185 Roma, Italy
³ IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039, P.R. China

Received: 4 October 2001
Revised: 16 November 2001
Published online: 20 December 2001

Abstract

In this paper, the model independent annual modulation effect observed by DAMA during four independent experiments of one annual cycle each (57986 kg × day total statistics) is analysed in terms of a particle dark matter candidate which can only inelastically scatter by making a transition to a slightly heavier state, as previously suggested in the literature.