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SUMMARY:Searches for Sphaleron: LHC vs. IceCube -  Kazuki Sakurai (IPPP Du
 rham)
DTSTART:20160510T140000Z
DTEND:20160510T150000Z
UID:TALK64230@talks.cam.ac.uk
CONTACT:Alexander Mitov
DESCRIPTION:In a recent paper\, Tye and Wong (TW) have argued that sphaler
 on-induced transitions in high-energy interactions should be enhanced comp
 ared to previous calculations\, based on a construction of a Bloch wave fu
 nction in the periodic sphaleron potential and the corresponding pass band
  structure.  In this talk\, I present our resent work studying future pros
 pects of observing sphaleron transitions at high energy hadron colliders a
 nd IceCube\, based on TW results. I first discuss the production rate and 
 possible signatures of the sphaleron-induced processes at high energy hadr
 on colliders.  We recast the early ATLAS Run-2 search for microscopic blac
 k holes to constrain the rate of sphaleron transitions at 13 TeV LHC. In t
 he second half of the talk\, I will discuss the possibility of observing s
 phaleron transitions induced by cosmogenic neutrinos at IceCube.  I calcul
 ate the sphaleron event rate at IceCube and discuss the signature of such 
 events.  Finally I compare the performance of the sphaleron searches at th
 e LHC and IceCube and find complementarity of these experiments.
LOCATION:Rutherford Seminar Room B
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