Summer2013 < Main

---+ Summer Students 2013
---+++++ Table of contents:

<br />%TOC{depth="4"}%
---++ Proposals
---+++ Procedure
   * Please go ahead and submit your proposal for CERN summer students urgently tomorrow Feb 15.
   * Link for potential supervisors to submit a project proposal(s): http://hrapps.cern.ch/auth/f?p=112:1
   * Login: AIS login name and password
   * Once you have completed your proposal please don't forget to hit the "create" button in order to submit your proposal as otherwise it will not be registered.
---+++ Adi Bornheim :
---+++++ A high precision time-of-flight detector for CMS

(Adi, Artur, Javier, Cristian) <br /><br />A time-of-flight (TOF) detector with a timing resolution of order a few pico <br />seconds is discussed for the CMS Phase II upgrade for the high luminosity <br />LHC (HL-LHC). A major challenge at HL-LHC will be the number of simultaneous <br />interactions per bunch crossing (pile-up, PU). An average of 140 PU interactions<br />is expected with the accelerator desing currently envisioned for HL-LHC. <br />Based on toy MC studies and fully simulated events algorithms<br />have to be developed which allow to associate a vertex location to a physics<br />object such as a Photon or a Jet. Filtering techniques need to be developed which <br />allow to suppress energy deposits from pile-up interactions in the object reconstruction. <br />The goal of the project is to work on the development of these algorithms,<br />test them on simulated events as well as on real CMS data.
---+++++ Geant simulation for a high precision time-of-flight detector for CMS

(Cristian, Adi, Artur, Emanuele)<br /><br />A time-of-flight (TOF) detector with a timing resolution of order a few pico <br />seconds is discussed for the CMS Phase II upgrade for the high luminosity <br />LHC (HL-LHC). A major challenge is to develop radiation hard detector technology<br />which allows the time of flight of all relevant final state particles produced in <br />LHC proton-proton collisions. A fundamental question is how the physical size<br />of a calorimetric device limits the achievable timing measurement precision.<br />The goal of this project is to carry out Geant as well as ray tracing simulation <br />based on the existing CMS ECAL crystals as well as proposed upgrade options <br />such as a crystal sampling calorimeter.
---+++++ ECAL calibration and performance in the presence of radiation induce noise

(Adi, Emanuele)<br /><br />The noise in the CMS electromagnetic calorimeter (ECAL) increases due to effects of<br />the radiation environment in LHC. This degrades the resolution performance and <br />has an impact of the isolation criterion which is used to distinguish electrons <br />and photons from jets. The increased noise also has an adverse effect on the ability<br />to select isolated low energy photons, which are used to calibrate the ECAL.<br />The goal of this project is to measure precisely the impact of the noise on the<br />ECAL performance and calibration procedure and develop a strategy to mitigate the<br />effect of the noise.
---+++ Emanuele Di Marco :
---+++++ H-&gt;WW-&gt;2l2nu with full decay kinematics

CMS data collected at pp collisions at 7 and 8 TeV in LHC Run1<br /> gave an observation for a Higgs-like boson with mass 126 GeV.<br /> For this mass, due to the large BR and very clean final state, one the most<br /> sensitive channel at CMS is H-&gt;WW-&gt;2l2nu. The problem with this decay<br /> mode is the absence of a clear mass peak due to two undetected<br /> neutrinos. The student should develop an alternative strategy<br /> for the usage of available decay kinematics, in order to<br /> separate the signal from non-resonant WW production and give<br /> access to the mass also in this channel.<br /> If this is achieved, the other informations of the opening<br /> angle of the leptons can be used to determine the spin/parity<br /> of the new particle.
---+++++ H -&gt; ZZ-&gt; 4 leptons property measurement

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

Higgs to gamma gamma
---+++ *Yi Chen*

HCAL noise
---+++ *Javier Duarte*

Razoy SUSY
---++ Students
---+++ Jeff Picard
---+++ Einstein
---+++ Bohr
---++ General Information
---+++ Information from Summer 2013

[[Summer2013][Summer2013]]
This topic: Main > WebHome > Summer2013
Topic revision: r2 - 2013-02-12 - bornheim
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