Difference: Summer2013 (5 vs. 6)

Revision 62013-02-14 - bornheim

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Summer Students 2013

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CMS data collected at pp collisions at 7 and 8 TeV in LHC Run1
gave an observation for a Higgs-like boson with mass 126 GeV.
The golden mode in terms of sensitivity to the Higgs mass is H -> ZZ
-> 4 leptons final state. The student will study the applications of the full
kinematics available in this channel to characterize the properties of
a possible signal for a resonance in the still allowed mass range to
distinguish a Standard Model Higgs boson from Higgs "look-alikes".
He will also contribute to the experimental analysis using at
best the information on lepton momentum determination to improve
the determination of the mass of the new particle.

Artur Apresyan

Alex Mott

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Higgs properties measurement in H to gamma gamma
  CMS data collected in the LHC run 1 has established the existence of a new boson with a mass near 125 GeV, which (among other modes) decays into two photons. Because of the extremely high resolution of the CMS Electromagnetic Calorimeter (ECAL) and relatively high signal yields in this channel, it is ideal to study the properties of this newly discovered particle. The student will study the properties of this boson with the existing LHC run 1 dataset and the expected sensitivity for precision measurement with the expected LHC run 2 dataset. The student will also measure the expected improvement in sensitivity for properties measurement from various proposed upgrades to the CMS detector, which will provide an important input to CMS upgrade planning.

Yi Chen

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HCAL noise
  After LS1 there is a good chance we will collect data at 25ns spacing as opposed to 50ns bunch spacing with high pileup. This poses an interesting challenge for the sub-detectors to develop efficient noise filters/algorithms designed for short bunch spacing. Hadronic calorimeter is important for most physics we want to do at the LHC. As we didn't have physics runs with 25ns bunch spacing, not much has been developed so far in terms of filters. In this project we will probe different possibilities of the noise-signal rejection algorithms using collision data collected in 2012 at both 50ns bunch spacing and 25ns bunch spacing, as well as mixed samples from data to emulate condition of high pileup and short bunch spacing. It's a nice chance to do important pioneering work that will affect the way we reject noise in the next run period.

Javier Duarte

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Razoy SUSY

Si Xie

Full event kinematics in H to Zgamma
 
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>		CMS data collected at pp collisions at 7 and 8 TeV in LHC Run1
gave an observation for a Higgs-like boson with mass 126 GeV.
The decay channel of this boson to a Z boson and a photon has unique
sensitivity to probe for heavy new particles that are not predicted by
the Standard Model. The student will study a number of possible
improvements to the sensitivity of the search including the use of the
full event kinematics and the use of event by event mass resolution.
In addition, the student will study the possibility to use the full
event kinematics to characterize additional properties of the Higgs-like
boson.
 

Students

Jeff Picard

Einstein

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