HEP GROUP UNIANDES COLOMBIA Carlos Avila On behalf

HEP GROUP UNIANDES - COLOMBIA Carlos Avila On behalf of the group January 8 th 2014 C. Avila, UNIANDES 1

LATIN AMERICAN COUNTRIES IN LHC EXPERIMENTS Uniandes is a CMS collaborating Institution since March 2006 CMS ALICE ATLAS LHCb 8 L. A. countries participating in LHC experiments. About 250 L. A. people involved (Physicists, Engineers, Grad. January 8 th 2014 Students). C. Avila, UNIANDES 2

L. A. Participation in other HEP experiments UNIANDES has more than 25 years doing experimental High Energy Physics -D 0 -FOCUS -HYPERCP -MINERVA -PIERRE AUGER -D 0 -E 811 -D 0 -DES -FOCUS -KTEV -MINOS -MINERVA -PIERRE AUGER -DELPHI -D 0 -MINERVA -D 0 -PIERRE AUGER January 8 th 2014 -PIERRE AUGER C. Avila, UNIANDES 3

• Founded in 1948 • Top 4 Latin american university by QS universities ranking. • 13000 undergraduate students • 2500 Master students • 350 Ph. D students • 30 undegraduate programs • 25 master programs • 15 Ph. D Programs • Undergraduate Physics Program since 1978 January 8 th 2014 C. Avila, UNIANDES • Ph. D Physics program since 1998 4

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

AREAS OF RESEARCH PHYSICS DEPARTMENT January 8 th 2014 GROUP # professors Astronomy & Astrophysics Biophysics Condensed Matter – theory 4 3 3 Condensed Matter – exp. HEP – Theory 3 3 1 3 6 HEP – exp. Quantum Optics Theoretical Physics TOTAL 4 1 3 24 1 5 30 C. Avila, UNIANDES # Postdocs # Ph. D Students 1 1 4 2 4 5 6

UNIANDES HEP GROUP IN CMS - 2014 • 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 January 8 th 2014 C. Avila, UNIANDES 7

UNIANDES – CERN UNIANDES Group: 3 professors , 1 postdoc, 3 Ph. D Students, 3 Engineers, 3 MSC students. CMS EXPERIMENT Member since 2006 RPC´s COMPUTING wtihin M&O A 2 MSc Thesis (Carlos Bula, I. Caicedo). 3 undergraduate thesis (C. Roa, S. Castro, I. Caicedo. ) MEDIPIX 3 Member since 2008 Data Analyses Instrumentation lab in Bogota GEM project 2 Ph. D theses completed: - 5 Ph. D students have participated in different stages of the RPC´s between 2006 and 2013. - 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. 9 engineers from our university have taken part of the computing operations groupd of CMS, during the period 2006 -2014. 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. 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 Ph. D 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 the. CMS experiment, reducing tt bar background with matrix elements techiniques”, Advisors: C. Avila, M. Maggi. C. Avila, UNIANDES 1 Ph. D thesis tin the SUSY VBF group: January 8 th 2014 A. Cabrera. 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. This is our contribution to the upgrade of CMS. 8

PROFESSOR´S RESPONSABILITIES 1. 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. January 8 th 2014 C. Avila, UNIANDES 9

POSTDOC´S RESPONSABILITIES 1. 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 January 8 th 2014 C. Avila, UNIANDES 10

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 Ph. D thesis. C. Avila, UNIANDES January 8 th 2014 11

Segment extrapolation Y Residual Y Work developed by Camilo Carrillo. RPC We use residuals to check the quality of the tool used to measure RPC efficiency with segment extrapolation. RPC Rec Hit DT/ CSC X RPC Local Frame. X Point extrapolated from DT Segment Residual January 8 th 2014 C. Avila, UNIANDES 12

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

HV Scan Comparison Between a Single Gap and a Double Gap Chamber Single Gap Chamber Double Gap Chamber HV Scan performed during CRAFT 09. It shows the difference between single an double gap Chamber January 8 th 2014 C. Avila, UNIANDES 14

Worked developed by Alberto Ocampo. January 8 th 2014 C. Avila, UNIANDES 15

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Activities in the RPC Group - 2013 • 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). • 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 January 8 th 2014 C. Avila, UNIANDES 17

Both Camilo y Alberto were nominated, in 2009, by the muon group for the CMS achievement award. Camilo got an extra vote: January 8 th 2014 C. Avila, UNIANDES 18

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 Ph. D student: Andres Cabrera (will start in 2014) Advisor: B. Gomez, in Collaboration with T. Kamon and A. Gurrolla. January 8 th 2014 C. Avila, UNIANDES 19

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. January 8 th 2014 C. Avila, UNIANDES 20

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 January 8 th 2014 C. Avila, UNIANDES 21

Computing Workflow Management Daily operations of the CMS computing jobs distribution system, Glidein. WMS. Deployment and updating of WMAgent software for CMS Workflows management. Daily operations of the CMS Dataset Book-keeping Service (DBS), currently transitioning from v 2 to v 3. January 8 th 2014 C. Avila, UNIANDES 22

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 January 8 th 2014 C. Avila, UNIANDES 23

Ivan Caicedo Carlos Bula Study of Angiografic and Tomographic images with MEDIPIX January 8 th 2014 C. Avila, UNIANDES 24

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FINANCIAL SOURCES: HELEN program (ALFA II), EPLANET, COLCIENCIAS, CMS, 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 January 8 th 2014 HELEN and EPLANET are finished. We need a new international project. This is important for mobility of students, postdoc 29 and professors.

GOALS & PERSPECTIVES FOR 2014 1. 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 Ph. D 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 8 th 2014 C. Avila, UNIANDES 30