Valerie Halyo
(Princeton University)
30/07/2009, 14:00
Beyond the Standard Model
Dileptons are among the cleanest probes of new physics waiting to be discovered at the LHC. In this review, I discuss an assortment of signatures involving dileptons and the exciting new physics they may help uncover. High invariant mass dileptons with opposite sign may reveal a new resonance, a possible remnant of some unified gauge theory. On the other hand, same-sign dileptons alongside...
James Linnemann
(Michigan State University)
30/07/2009, 14:40
Beyond the Standard Model
We present the results of a broad search for indications of new physics at
the electroweak scale. We examine an exposure of 1 fb-1 to pbar p
interactions at the Fermilab Tevatron at sqrt(s)=1.96 TeV collected by the
D0 detector. We concentrate on final states involving leptons, but the
searches are done in a model independent way. We analyze the data for
deviations from the...
Emily Thompson
(University of Massachusetts)
30/07/2009, 15:00
Beyond the Standard Model
The Standard Model has been successful in describing many fundamental aspects of particle physics. However, there are some remaining puzzles which are not explained within the context of its present framework. We discuss the possibility to discover new physics in the ATLAS Detector via a four-fermion contact interaction, much in the same way Fermi first described Weak interactions. Using a...
Ms
Isabel Pedraza
(High Energy Physics-Department of Physics-University of Wisconsi)
30/07/2009, 15:20
Beyond the Standard Model
The discovery potential for a heavy new resonance decaying into
di-lepton pairs, or into a high pT lepton and missing ET, using the
ATLAS detector at the LHC is presented. Due to the simplicity and
robustness of the the di-lepton (or lepton+ETmiss) final states, they
are ideal channels in which to search for new physics. The
unprecedented center-of-mass energy available at the LHC allows...
Selda Esen
(Department of Physics-Brown University-Unknown)
30/07/2009, 15:40
Beyond the Standard Model
We present a search for extra dimensions in the diphoton channel using the CMS detector at the Large Hadron Collider. The search is focused on the forthcoming 2009--2010 run at 10 TeV center-of-mass energy and $\sim 100~\pbinv$ of data. We discuss event selection and optimization, as well as data-driven methods of estimating various backgrounds and efficiencies. The dominant source of...
Warren James Clarida
(Physics and Astronomy Department - University of Iowa)
30/07/2009, 16:30
Beyond the Standard Model
The Standard Model can be extended to include massive neutrinos as observed in the recent oscillation experiments. Perhaps the most commonly studied model is the type-I seesaw mechanism. This model introduces a new neutrino with a Majorana nature with an unknown mass. In this study we present the potential for the discovery of a Majorana neutrino during the first year of data collection from...
Stephen Godfrey
(Carleton University)
30/07/2009, 16:50
Beyond the Standard Model
s-channel resonances are predicted by many models of Physics Beyond the Standard Model and it is quite possible that such an object will be discovered in the early years of the LHC program. If this occurs, the task will be to understand its origins. I will describe various diagnostic measurements to study Z' 's including some new observables we have proposed that can distinguish between...
Marc-Olivier Bettler
(Laboratoire de Physique des Hautes Energies (LPHE-IPEP))
30/07/2009, 17:10
Beyond the Standard Model
The LHCb experiment will in the first run of LHC obtain more B-meson decays than has been recorded by any other experiment previously. This provides a unique opportunity for studying very rare decays where the effects of physics beyond the Standard Model might be dominating. The decay Bs -> mu+ mu- is very sensitive to an extended Higgs sector and might be the first place to see the effects of...
Dr
Erin De Pree
(St. Mary's College of Maryland)
30/07/2009, 17:30
Beyond the Standard Model
Since the discovery of neutrino mass, the possibility of a fourth generation of particles has reemerged. Electroweak precision measurements force the fourth generation to have non-degenerate masses which is consistent with the three standard generations. We present the possibilities of detecting fourth generation top quark in several theories beyond the Standard Model, including warped extra...