Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series NUC-THEO
Subjects nucl-th
Date Wednesday 13 September 2017
Time 11:30
Institute IPN
Seminar Room IPN, Bâtiment 100, salle des conseils
Speaker's Last Name Ellwanger
Speaker's First Name Ulrich
Speaker's Email Address
Speaker's Institution Laboratoire de Physique Théorique, Orsay
Title Possible explanation of the electron positron anomaly at 17 MeV in 8Be transitions
Abstract The Atomki facility in Debrecen, Hungary, has observed a significant excess in electron positron pair production in 8Be transitions corresponding to a possible intermediate particle of a mass of about 17 MeV. It will be reviewed why very light still unknown particles can have escaped detection up to now, and where they may be discovered. The nuclear transitions within 8Be will be introduced. Various possible explanations for the observed anomaly will be discussed, and why these explanations can be consistent with constraints from other experiments.
arXiv Preprint Number
Comments $$
Attachments
  • 2017_09_13_U_Ellwanger.pdf (206273 bytes) OPEN

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