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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3533
DTSTART:20141218T203000Z
DTEND:20141218T213000Z
DTSTAMP:20260416T163600Z
LAST-MODIFIED:20141204T202304Z
LOCATION:5280 Chamberlin Hall
SUMMARY:An Effective Field Theory Analysis of the LUX WIMP Search\, NP
 AC (Nuclear/Particle/Astro/Cosmo) Forum\, Nicole Larsen\, Yale Univers
 ity
DESCRIPTION:The Large Underground Xenon (LUX) experiment is a dark mat
 ter direct detection experiment located 4850 feet underground at the S
 anford Underground Research Facility in Lead\, SD.  During Summer 2013
 \, LUX collected 10065 kg-days of WIMP search data.  Ultimately LUX re
 ported a minimum cross-section limit for spin-independent WIMP-nucleon
  elastic scattering of 7.6 e-46 cm2 for 33-GeV WIMPs\, making it the m
 ost sensitive direct detection experiment to date.  Direct detection e
 xperiments like LUX typically only present limits on spin-independent 
 (SI) and spin-dependent (SD) WIMP-nucleon interaction cross sections. 
  However\, recent theoretical work has emphasized that in the most gen
 eral effective field theory formulation there are several additional m
 omentum-dependent and velocity-dependent interactions allowed by basic
  symmetries that can interfere with or modify the standard SI and SD i
 nteractions.  Moreover\, entirely new nuclear responses analogous to a
 ngular-momentum-dependent and spin-orbit couplings in standard weak in
 teraction theory can emerge.  Here I provide an overview of the LUX de
 tector and last year’s WIMP search run\, discuss the current status 
 of the experiment\, and highlight recent efforts toward using the LUX 
 2013 dataset to set limits on these new momentum- and velocity-depende
 nt operators.
URL:https://www.physics.wisc.edu/events/?id=3533
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