HEP GROUP UNIANDES - COLOMBIA Carlos Avila On behalf of the group January 8th 20141C. Avila, UNIANDES

ATLAS CMS ALICE LHCb LATIN AMERICAN COUNTRIES IN LHC EXPERIMENTS 8 L.A. countries participating in LHC experiments. About 250 L.A. people involved (Physicists, Engineers, Grad. Students). Uniandes is a CMS collaborating Institution since March 2006 January 8th 20142C. Avila, UNIANDES

L.A. Participation in other HEP experiments -D0 -DES -FOCUS -KTEV -MINOS -MINERVA -PIERRE AUGER -DELPHI -D0 -FOCUS -HYPERCP -MINERVA -PIERRE AUGER -D0 -E811 -D0 -PIERRE AUGER -PIERRE AUGER -D0 -MINERVA UNIANDES has more than 25 years doing experimental High Energy Physics January 8th 20143C. Avila, UNIANDES

January 8th Founded in 1948 Top 4 Latin american university by QS universities ranking undergraduate students 2500 Master students 350 PhD students 30 undegraduate programs 25 master programs 15 PhD Programs Undergraduate Physics Program since 1978 PhD Physics program since 1998 C. Avila, UNIANDES

5 UNDERGRADUATE STUDENTS: 220 MSc STUDENTS : 20 PhD STUDENTS : 30 Degrees awarded: 330 BSc; 110 MSc; 8 PhD PHYSICS DEPARTMENT January 8th 2014C. Avila, UNIANDES

AREAS OF RESEARCH GROUP# professors# Postdocs# PhD Students Astronomy & Astrophysics42 Biophysics314 Condensed Matter – theory35 Condensed Matter – exp.313 HEP – Theory36 HEP – exp.414 Quantum Optics11 Theoretical Physics315 TOTAL C. Avila, UNIANDES PHYSICS DEPARTMENT January 8th 2014

UNIANDES HEP GROUP IN CMS January 8th 20147C. Avila, UNIANDES 3 PROFESSORS: - Bernardo Gómez - Juan Carlos Sanabria - Carlos Ávila 4 PHD STUDENTS: - Juan Pablo Gomez - Luisa Chaparro - Andres Cabrera - Felipe Gonzalez 1 POSTDOC: - Andres Florez 3 ENGINEERS WITHIN M&O A CATEGORY: - Luis Linares - David Mendez - Julian Badillo

UNIANDES – CERN UNIANDES Group: 3 professors, 1 postdoc, 3 PhD Students, 3 Engineers, 3 MSC students. CMS EXPERIMENT Member since 2006 MEDIPIX 3 Member since 2008 RPC´sData AnalysesCOMPUTING wtihin M&O A GEM project - 5 PhD students have participated in different stages of the RPC´s between 2006 and Comissioning and operation, debugging of problems, HV Scans, Detector efficiencies, Prompt analysis tools, etc. This has been our hardware contribution to CMS and our pkan is to continue with it. 2 PhD theses completed: 1. C. Carrillo: “Search for heavy stable charged particles in the CMS experiment using the RPC detectors”. Advisors: J.C. Sanabria, M. Maggi. 2. A. Ocampo: “Search for supersymmetry production signals in events with two leptons with the same sign using the cms detector”, Advisors: B. Gomez, M. Maggi. 2 PhD theses in progress: 3. Luisa Chaparro: “Search for the Dalitz Decay of the Higgs Boson in p-p Collisions with the CMS Detector”, Advisors. J. C. Sanabria, C. Cariillo. 4. J. P. Gomez: “Search for stops in theCMS experiment, reducing tt bar background with matrix elements techiniques”, Advisors: C. Avila, M. Maggi. 1 PhD thesis tin the SUSY VBF group: A. Cabrera. 9 engineers from our university have taken part of the computing operations groupd of CMS, during the period Each of them with a stay of 2 years.They have been hired within the M&O A scheme. Two enginners have also been involved in the LPC at Fermilab. Duties are directly defined by the CMS computing group. Important activity for the visibility of our engineers and our university. We are just starting: We have assembled one GEM detector in our lab and are ready to start performing some tests. We could also try to get involved one MSc student in simulation. 2 MSc Thesis (Carlos Bula, I. Caicedo). 3 undergraduate thesis (C. Roa, S. Castro, I. Caicedo.) Instrumentation lab in Bogota This is our contribution to the upgrade of CMS. January 8th C. Avila, UNIANDES

January 8th Teaching : two courses per semester  40% 2. Administrative duties  30% 3.Research  30% RESEARCH: -Graduate Students supervision -Write up and Submission of research proposals (~ 2/year) -Organization of scientific events (about 2/year) -Coordination of the HEP weekly seminar -Planning and follow up of group activities: CMS, MEDIPIX. -Coordination of the write up of internal notes, proceedings and papers with direct activities of our group. - Contribution with talks in workshops, seminars, etc. PROFESSOR´S RESPONSABILITIES C. Avila, UNIANDES

January 8th Teaching : one course per semester  30% 2.Research  70% RESEARCH: -Contribute with Grad. Students supervision - Contribute with data Analysis - Contribute with other group activities: Software maintenance, some help with organization of scientific events, etc.  Co-coordination of the SUSY VBF group POSTDOC´S RESPONSABILITIES C. Avila, UNIANDES

January 8th PLAN OF STUDIES FOR OUR GRADUATE STUDENTS Years 1 and 2 : Take standard courses: Classical Mechanics, Classical Electrodynamics,advanced Q.M., Statistical Physics, Avanced lab, 3 Elective courses in Particle Physics. End of Year 2: QUALIFYING EXAMS Year 3: Start Research activities. First semester: Traniniing in CMSSW, ROOT, Simulation packages, etc. Second semester: Beginning of Stay at CERN: 90% dedicated to CMS service tasks, 10% to define thesis project. Year 4: First semester: 90% CMS service tasks, 10% thesis proposal PHD EXAM: Defend thesis proposal Second semester: 40% service tasks, 60% thesis work Year 5: First semester: 40% service tasks, 60% thesis work RETURN TO BOGOTA Second semester: 100% dedicated to thesis Year 6: 100% dedication to finish PhD thesis. C. Avila, UNIANDES

Segment extrapolation RPC Rec Hit Point extrapolated from DT Segment X Y X Y Residual We use residuals to check the quality of the tool used to measure RPC efficiency with segment extrapolation. RPC DT/ CSC RPC Local Frame. Residual Work developed by Camilo Carrillo. January 8th C. Avila, UNIANDES

13 “Muongraphies” Spacers Corners of the gas gaps Uniform efficiency in plateau Measurement of the border effect in the efficiency January 8th 2014C. Avila, UNIANDES

14 HV Scan Comparison Between a Single Gap and a Double Gap Chamber Single Gap Chamber HV Scan performed during CRAFT09. It shows the difference between single an double gap Chamber Double Gap Chamber January 8th 2014C. Avila, UNIANDES

Worked developed by Alberto Ocampo. January 8th C. Avila, UNIANDES

January 8th C. Avila, UNIANDES

Activities in the RPC Group Activities in the RPC Group Skew and Delay Test of the signal cables for the upgrade of the RPC System of the CMS Experiment (RE+4 and RE-4).Skew and Delay Test of the signal cables for the upgrade of the RPC System of the CMS Experiment (RE+4 and RE-4). Test of the adaptors for the High Voltage Cable of the RPC chambers. Test of the RPC High Voltage Cable for the upgrade of the RPC System (RE+4 and RE-4).Test of the RPC High Voltage Cable for the upgrade of the RPC System (RE+4 and RE-4). Preparation of the reshuffling code for the RPC High Voltage System. Installation of RPC Signal Cable for RE+4 Gas leak search for the RPC Gas Pipes 17C. Avila, UNIANDESJanuary 8th 2014

Both Camilo y Alberto were nominated, in 2009, by the muon group for the CMS achievement award. Camilo got an extra vote: January 8th C. Avila, UNIANDES

ACTIVITIES IN DATA ANALYSIS 1.Search for Semileptonic stop decays by tagging t-tbar background with matrix elements method. Phd Student : Juan Pablo Gomez Advisor: C. Avila, Co-advisor: Marcello Maggi 2.Search of Higgs Dalitz Decay Phd Student : Luisa Chaparro Advisor: J. C. Sanabria, Co-advisor: C. Carrillo 3. SUSY searches through vector boson fusion Postdoc: Andres Florez PhD student: Andres Cabrera (will start in 2014) Advisor: B. Gomez, in Collaboration with T. Kamon and A. Gurrolla. 19C. Avila, UNIANDESJanuary 8th 2014

CMS Computing Support Some of the contributions of Uniandes engineers to CMS Computing: 1. Computing workflow management 2. Detector Conditions data distribution 3. Quality assurance and control in CMSSW. 4. Manage tools and procedures to enable developers to contribute to CMSSW. 20C. Avila, UNIANDESJanuary 8th 2014

Detector Conditions Data Distribution Support for the Frontier system, which distributes detector conditions data throughout the WLCG (Worldwide LHC Computing Grid). Support for the associated WLCG Squid network, deployed to decrease load on central Frontier servers. Implementation of the mandate of the WLCG Squid Monitoring Taskforce, encompassing CMS, ATLAS and the CVMFS system. Tracking, debugging and monitoring of workflows Improving and developing monitoring scripts and tools 21C. Avila, UNIANDESJanuary 8th 2014

Computing Workflow Management Daily operations of the CMS computing jobs distribution system, GlideinWMS. Deployment and updating of WMAgent software for CMS Workflows management. Daily operations of the CMS Dataset Book-keeping Service (DBS), currently transitioning from v2 to v3. 22C. Avila, UNIANDESJanuary 8th 2014

Quality assurance and control in CMSSW. Test new changes proposed by the developers for the current releases. Run code analysis tools to perform efficiency checks and optimization. Inform developers about errors and problems found in the releases caused by their codes 23C. Avila, UNIANDESJanuary 8th 2014

Carlos Bula Ivan Caicedo Study of Angiografic and Tomographic images with MEDIPIX January 8th C. Avila, UNIANDES

January 8th C. Avila, UNIANDES

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January 8th C. Avila, UNIANDES

January 8th C. Avila, UNIANDES

HELEN 22 Latin American Institutions 17 European Institutions Countries participating: From Europe: France, Germany, Italy, Portugal, Spain, United Kingdom From Latin America: Argentina, Brazil, Chile, Colombia, Cuba, Mexico, Peru, Venezuela. ~70% of fellowships for mobility to CERN FINANCIAL SOURCES: HELEN program (ALFA II), EPLANET, COLCIENCIAS, CMS, UNIANDES January 8th HELEN and EPLANET are finished. We need a new international project. This is important for mobility of students, postdoc and professors.

GOALS & PERSPECTIVES FOR Continue our activities in MEDIPIX with new MSc student in collaboration with the bio-engineering department and other Colombian universities. 2.Continue our participation in the RPCs 3.Maintain the participation of our engineers in the CMS computing M&O A program. 4.Finish thesis of Juan Pablo Gómez on stop search with t-tbar background reduction with matrix elements method. 5. Advance with thesis of Luisa Chaparro on Higgs dalitz decay. 6.Start thesis of Andres Cabrera on SUSY VBF with muons in final state  This thesis will help to pave the way for our collaboration with Texas A&M and Vanderbilt. 7.Start our contribution to the GEM project.  Collaboration with Texas A&M and Vanderbilt seems positive. 8. We have also interest in participating in a SUSY phenomenology- experimental project in collaboration with Texas A&M and Vanderbilt  Possibly with new PhD student Felipe Gonzalez. 9. Need to write some inernal notes for the work done by our group, including service work and theses of our students. 10. Need to find new external sources to finance our activities, specially mobility. January 8th C. Avila, UNIANDES