Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268


Thu., February 18, 2016, at 3:00 PM - 4:00 PM (Refreshments served at 2:40 PM)

Neutrons Can Give a Clue to Understanding of Dark Matter

Yuri A. Kamyshkov, University of Tennessee, Knoxville, TN 37996-1200
ORNL, Bldg. 6008 Large Conference Room

I will discuss a model of Dark Matter that is alternative to the standard thermal WIMP paradigm. In this model, the Ordinary and Dark Matters are made of the same particles with the Standard Model interactions in both sectors, except two sectors do not interact with each other by the Standard Model interactions. They only interact gravitationally and by some BSM mechanisms that mix neutral components from both sectors. Thus, for example, neutrinos can oscillate into sterile neutrinos and neutrons into sterile neutrons. Sterile neutrino search has motivated proposals of several experiments (e.g., PROSPECT at HFIR/ORNL). Recently some indications has appeared that neutrons can be transformed into sterile neutron states (so-called "mirror neutrons"). I will review these indications and will discuss a small, easy, and not-expensive new experiment where transformations of neutron to mirror neutron can be detected by reappearance of neutrons from behind the absorbtion wall (in regeneration mode). Such an experiment can be performed, for example, at SNS.

Contact: Alfredo Galindo-Uribarri, (865) 574-6124