BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Nucleon charges and probing novel CP violation via neutron EDM - R
 ajan Gupta (Los Alamos National Lab)
DTSTART:20170321T160000Z
DTEND:20170321T173000Z
UID:TALK68042@talks.cam.ac.uk
CONTACT:Dr Maria Ubiali
DESCRIPTION:This talk will survey the calculations of matrix elements of q
 uark\nbilinear operators between nucleon states using lattice QCD. A numbe
 r\nof exciting physics\, at the intersection of nuclear and particle\nphys
 ics\, is being probed using these calculations. The axial charge\ng_A is a
  fundamental parameter encapsulating the weak interaction of\nnucleons and
  serves to benchmark the efficacy of lattice QCD\ncalculations of nucleon 
 structure.  The scalar and tensor charges\, g_S\nand g_T\, combined with p
 recision neutron decay distribution probe\nnovel scalar and tensor interac
 tions at the TeV scale. Vector form\nfactors are probed in electron scatte
 ring\, while axial vector form\nfactors are used in the calculation of the
  cross-section of neutrinos\non nuclear targets. These energy dependent cr
 oss-sections are needed\nto determine the neutrino flux\, an important sys
 tematic in neutrino\noscillation experiments.  Flavor diagonal charges are
  needed to quantify\nthe interaction of dark matter with nuclear targets a
 nd for the nucleon\nsigma term. Lastly I will provide results for the matr
 ix elements of two \nnovel CP violating operators\, the quark EDM and the 
 quark Chromo EDM\, \nthat contribute to the electric dipole moment of the 
 neutron (nEDM). 
LOCATION:B1.19\, DAMTP
END:VEVENT
END:VCALENDAR