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DTSTAMP:20260611T002111Z
SUMMARY:2013 Spring Graduate Colloquium Series:  Kranti Gunthoti/Bao-Fei Li
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Kranti Gunthoti=0D=0A=
Search for Supersymmetry at CMS=0D=0A=
Supersymmetry is considered as one of the leading candidates for a model of beyond the standard model physics. It naturally solves the hierarchy problem and provides a possible candidate for dark matter and an elegant solution to the=0D=0A=
gauge coupling unification. Therefore a lot of emphasis is given in probing supersymmetry at high energy physics collider experiments. I will talk about recent results on a search for supersymmetric particles in events with large=0D=0A=
missing transverse momentum produced in center of mass ăs = 7 TeV protonproton collisions using a data sample corresponding to an integrated luminosity of 4.98 fb−1 recorded by the CMS experiment at the Large Hadron Collider.=0D=0A=
(Based on S. Chatrchyan et al., Physical Review Letters 109, 171803 (2012))=0D=0A=
Bao-Fei Li=0D=0A=
A Phenomenological Model for Open-Flavor=0D=0A=
Strong Decays=0D=0A=
In our decay model, the decay interaction consists of both scalar confining=0D=0A=
interaction and One-Gluon-Exchange (OGE) interaction which are exact analogues to the potentials in quark potential model. Later, in order to apply this model to meson decays in u, d, s flavor sector, gluons are treated as=0D=0A=
massive vector bosons and the approximation of four-fermion interaction is thus adopted. Then different roles of two interactions are studied by=0D=0A=
experimentally well established decays as well as D/S ratios of two important channels, b1¨ƒÖ+ƒÎ and a1¨ƒĎ+ƒÎ. These analyses eventually reveal that scalar interaction dominates in most open-flavor decays and is also preferred by ratio=0D=0A=
test. (Based on Bao-Fei Li, et al., Chinese Physics C 36, 106-116 (2012))=0D=0A=
For more information, please contact: Dr. Linda Olafsen 254-710-2541
LOCATION:Baylor Sciences Building, Room E.125
DTSTART;TZID=US_Central:20130419T153500
DTEND;TZID=US_Central:20130419T170000
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