6533b833fe1ef96bd129b67a

RESEARCH PRODUCT

Interpretation of the Anomalous NaI Events

B. ChambonS. MarnierosJ. MalletM. GoyotC. GoldbachG. ChardinX-f. NavickL. VagneronD. DrainLino MiramontiN. MirabolfathiG. NollezJ.-p. TorreA. BroniatowskiMerinero MartínMartin LoidlA. JuillardM. De JesusM. SternJ. GasconA. De LesquenM. GrosP. CharvinM. ChapellierM. CaussignacL. DumoulinE. SimonLuc BergéL. MoscaP. PariJ. ManginP. GarocheO. MartineauAurélien Benoit

subject

Nuclear physicsPhysicsScintillationEnergy lossWIMPPhysics::Instrumentation and DetectorsAstrophysics::Instrumentation and Methods for AstrophysicsAlpha particleEDELWEISSEvent (particle physics)Interpretation (model theory)

description

Anomalous events, with scintillation decay times shorter than nuclear recoils, have been observed by the UKDMC and Saclay NaI experiments. By using the event categories observed in the EDELWEISS experiment, we propose to interpret the anomalous NaI events as surface nuclear recoils accompanied with a small energy loss of an escaping alpha particle. The discrimination performances of the NaI experiments which have not taken into account these events in their analysis, notably for axial WIMP interactions, must then be reevaluated.

yearjournalcountryeditionlanguage
2001-01-01
https://doi.org/10.1007/978-3-662-04587-9_35