Kétévi A. Assamagan. Brookhaven National Laboratory Telephone:

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1 MARITAL STATUS Unmarried, father of one CURRENT POSITION 2001-Present: Permanent Research Staff at Brookhaven National Laboratory (BNL) February 2012 February 2015; Visiting Professor at the University of Johannesburg, South Africa November October 2011: Sabbatical at CEA-Saclay, France EDUCATION : Research associate on the ATLAS experiment, Hampton University, Hampton, VA, USA / CERN : Post-doctoral research fellow, nuclear physics, Jefferson Lab, Newport News, VA, USA : Ph.D. in nuclear and particle physics, University of Virginia, Charlottesville, VA, USA. Thesis Title: "Precise Determination of the pion beta decay rate in the reaction! +!! 0 e +!". Experiment conducted at the Paul Scherrer Institute (PSI) : Masters of Science, Theoretical Condensed Matter Physics. Ball State University, Muncie, IN USA. Thesis topics: "Understanding and improvement of photovoltaic solar cell" - practical applications for cheaper electricity in Africa : Licence en Physique et Chimie, Université de Bénin, Lomé, Togo WORK EXPERIENCE 2001-Present: Permanent staff at BNL : Convener of the ATLAS Higgs working group. Coordinating the work of a very large group of physicists around the world. The ATLAS Higgs working group has more than 500 members of which at least 50% are very active.

2 : Coordinator for ATLAS efforts on additional minimum bias interactions per beam crossing (pile-up). At higher instantaneous luminosities, the probability of additional minimum bias interactions per bunch crossing increases at the LHC. The primary concern is then the identification of the proton-proton collision that triggers the detector readout and the suppression of the background caused by the additional minimum bias interactions. I coordinated and was directly involved the development of the tools for this : Coordinator of ATLAS physics analysis tools. In large collaborations such as the ATLAS Experiment, the necessity to rely on common tools for data analysis is crucial to cross check and reproduce the results of group members prior to publication. The common tools also facilitate the integration of new members, primarily students and post-docs. I led a team of software engineers and physicists to develop common tools for ATLAS data analysis : ATLAS muon spectrometer event data model coordinator. The event data model is a computing model to describe the transient and persistent representations of the event data as readout from the electronics and used in the event reconstruction. It allows the decoupling of data and algorithms, thus facilitating the development of different tools and algorithms to process the same event data. I coordinated these efforts for the ATLAS muon spectrometer software Present: studies of discovery prospects for Higgs bosons at the LHC using the ATLAS detector. I have contributed in a significant way in the searches for the Higgs boson as the LHC using the ATLAS detector. In fact, I became the convener of the ATLAS Higgs working group. My interests are in the searches of the Standard Model Higgs boson in the H! ZZ and H! WW decay channels and in the search of the charged Higgs through its Standard Model or Super-symmetric decay modes Present: significant contribution to the ATLAS Muon Spectrometer software for data acquisition, event reconstruction, pileup and cavern background simulation, and data analysis Present: Work on the construction of the ATLAS Cathode Strip Chamber (CSC) and on the CSC reconstruction software 2001-Present: supervise summer students, under-graduate and graduate students : As a research associate stationed at CERN Studies of discovery prospects for Higgs bosons at the LHC using the ATLAS

3 detector Work on the construction and the integration of the ATLAS Transition Radiation Tracker (TRT) : a post-doctoral research associate at Hampton University stationed at Jefferson Lab. Worked on the Jefferson Lab Hall C spectrometer wire chamber. Develop a hardware system for the rotation and the angular position of the spectrometer, necessary to take data at various settings of the spectrometer. Supervised under-graduate students : as a Ph. D. Student at the University of Virginia Participated in the construction of the CsI calorimeter for the pion beta decay experiment at PSI Participated in the development of the electronics readout and the software for the data acquisition for the pion beta decay experiment. Data analysis for the Ph.D. Ultimate objective: extraction of the CKM matrix element V ud in the pion sector, that is, without relying on super-allowed nuclear beta decays which are plagued by all sort of nuclear corrections Teaching assistant for pre-medical and engineering students at the University of Virginia : As masters student at Ball State University Teaching assistant at Ball State University : High School Teacher at Collège Protestant de Lomé, Togo. Since I could find any opportunity to continue study abroad after University of Université du Bénin (Lomé), I had to teach Present: Extensive Experience in International Research Collaborations High profile contributions and positions in the ATLAS Collaboration of more than 3000 collaborations from around the world Carried out Research at Many International Research Institutions, namely, CERN, BNL, PSI, Jefferson Lab, Los Alamos National Lab Maintaining International Research Collaborations including with South Africa (The University of Johannesburg and the University of Witwatersrand) Co-supervising South African Ph.D. students at the SA-ATLAS Universities INVITED TALKS

4 Since 1998, I gave invited talks at many different Institutes in the US, in South Africa (UJ, SAIP, UCT, ithemba LABS), India, France, Switzerland, UK, Sweden INTERNATIONAL REVIEW COMMITTEES Since 1998, I have served on many different international review committees for grant proposal and paper reviews RESEARCH INTERESTS Search for the Higgs Boson(s) at the LHC Search for new Physics at the LHC, including the nature of Dark Matter (supersymmetry), large extra-dimension and flavor violation Applications to industry and medicine EDUCATION INTERESTS Outreach in Africa African school of fundamental physics: I am a member of the International Organizing committee of the African School of Fundamental Physics. We organized a very successful school for a period of three with 65 students from various African countries, in August 2010 in Stellenbosch, South Africa. We successfully obtained funding from 15 institutions in Africa, Europe and the US for this school. The next edition of the school is going to be in 2012 in Ghana. Our objective is to organize such a school every two years in a different African country. The aim of the school is to build the capacity to harvest, interpret and exploit the results of current and future physics experiments with particle accelerators, and to increase proficiency in the related applications such as medicine and technology. The school is based on close interplay between theoretical, experimental and applied physics. PROFESSIONAL AFFILIATIONS American Physics Society National Society of Black Physicist African Physical Society

5 LANGUAGE PROFICIENCY Full fluency in English, French, Mina, and Ewe COMPUTER PROFICIENCY Extended software experience in C++, Fortran, ROOT, for data analysis. Computer simulations using Geant-4 AWARDS and DISTINCTIONS 1986: United States Agency for International Development (USAID) grant aware to purse higher education in the US 1988: University of Virginia Fellowship to pursue graduate studies 1990: Passed the Ph.D. Qualifying Examination with Distinction : University of Virginia Fellowship to continue with the Ph.D studies : University of Virginia Research Fellowship to complete the Ph.D thesis : Post-doctoral Fellowship at Hampton University and Jefferson Lab : Research Scientist Fellowship to work on the ATLAS Project at CERN 2001-Present: Staff Position at Brookhaven National Laboratory. The continuation of the position is subject to a satisfactory review every two years. All reviews completed with Commendable Performance. 2003: Brookhaven National Laboratory Outstanding Student Mentoring Award 2003: Appointed ATLAS Muon Spectrometer Event Data Model Coordinator : Appointed ATLAS Physics Analysis Tools Coordinator : Appointed ATLAS Pileup Simulation Coordinator : Appointed ATLAS Higgs Working Group Convener

6 : Won a one-year grant for France-US scientific collaboration. Stationed at CEA-Saclay for one year for collaborative research on the ATLAS Experiment HOBBIES Jogging Drumming: African instruments Reading: African literature REFERENCES Dr Fabiola Gianotti, CERN, EP Division, Geneva CH-1211, Switzerland Tel: ; fax: Fabiola.Gianottti@cern.ch Dr Peter Jenni, CERN, EP Division, Geneva CH-1211, Switzerland Tel: ; fax: Peter.Jenni@cern.ch Dr David R. Quarrie, Lawrence Berkeley National Lab, CERN EP Division, Gevena Switzerland, CH-1211, tel: , fax: DRQuarrie@lbl.gov Professor O. Keith Baker,, Yale University - SPL, PO BOX , New Haven, CT USA, tel: , fax: oliver.baker@yale.edu Dr Howard Gordon,, Brookhaven National Laboratory, Upton, NY USA, tel: +(00) ; fax: +(00) gordon@bnl.gov Dr Rolf Ent, Jefferson Lab, Jefferson Avenue, Newport News, VA USA, tel: +(00) ; fax: +(00) ent@jlab.org Professor Dinko Pocanic,, University of Virginia, Charlottesville VA USA, tel: +(00) ; fax: +(00) dp5m@virginia.edu

7 SELECTED PUBLICATIONS Prospects for Higgs Boson Searches using the HWW(!llnn) Decay Mode with the ATLAS Detector for 10 TeV ATL-PHYS-PUB Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC. ATLAS Collaboration Mar pp. e-print: arxiv: [hep-ex] Suppression of Fake Missing Transverse Energy from Cosmic Ray Muons in the ATLAS Calorimeter ATL-PHYS-INT Higgs Production Cross Sections and Decay Branching Ratios ATL-PHYS-INT The ATLAS Monte Carlo Project ATL-SOFT-INT Measurement of underlying-event properties using neutral and charged particles in pp collisions at 900 GeV and 7 TeV with the ATLAS Detector at the LHC ATLAS Collaboration Mar pp. Published in Eur.Phys.J. C71 (2011) 1636 e-print: arxiv: [hep-ex] Search for high-mass states with one lepton plus missing transverse momentum in proton-proton collisions at s!=7 TeV with the ATLAS detector. ATLAS Collaboration Mar pp. e-print: arxiv: [hep-ex] Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions. Atlas Collaboration. Feb pp. e-print: arxiv: [hep-ex] Measurement of Dijet Azimuthal Decorrelations in pp Collisions at sqrt(s)=7 TeV. ATLAS Collaboration. Feb pp. e-print: arxiv: [hep-ex]

8 Search for supersymmetry using final states of one lepton, jets and missing transverse momentum with the ATLAS detector in 7 TeV Atlas Collaboration. Feb pp. e-print: arxiv: [hep-ex] Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC ATLAS Collaboration. Feb pp. Published in Phys.Lett. B698 (2011) e-print: arxiv: [hep-ex] ATLAS Sensitivity Prospects for Higgs Boson Production at the LHC Running at 7 TeV. ATL-PHYS-PUB Luminosity determination in pp collisions at 7 TeV using the ATLAS detector at the LHC ATLAS Collaboration. Jan pp. Published in Eur.Phys.J. C71 (2011) 1630 e-print: arxiv: [hep-ex] Study of jet shapes in inclusive jet production in pp collisions at 7 TeV using the ATLAS detector Atlas Collaboration. CERN-PH-EP Jan e-print: arxiv: [hep-ex] Measurement of the production cross section of W-bosons in association with jets in pp collisions at 7 TeV with the ATLAS detector ATLAS Collaboration. CERN-PH-EP Dec pp. Published in Phys.Lett. B698 (2011) e-print: arxiv: [hep-ex] Measurement of the centrality dependent J/Psi yields and observation of Z production in lead-lead collisions with the ATLAS detector at the LHC Atlas Collaboration. CERN-PH-EP Dec pp. Published in Phys.Lett. B697 (2011) e-print: arxiv: [hep-ex]

9 Measurement of the inclusive isolated prompt photon cross section in pp collisions at 7 TeV with the ATLAS detector at the LHC Atlas Collaboration. Dec pp. e-print: arxiv: [hep-ex] Charged particle multiplicities in pp interactions measured with the ATLAS detector at the LHC ATLAS Collaboration. Dec pp. Published in New J.Phys. 13 (2011) e-print: arxiv: [hep-ex] Observation of the Background from W+jets to the H -> WW -> ll nu nu Search with the ATLAS detector at 7 TeV ATLAS-CONF Search for diphoton events with large missing transverse energy in 7 TeV pp collisions with the ATLAS detector ATLAS Collaboration. Dec pp. e-print: arxiv: [hep-ex] Measurement of the top-quark pair production cross section with ATLAS in pp collisions at 7 TeV Atlas Collaboration. Dec pp. Published in Eur.Phys.J. C71 (2011) 1577 e-print: arxiv: [hep-ex Measurement of underlying event characteristics using charged particles in pp collisions at 900 GeV and 7 TeV with the ATLAS detector Atlas Collaboration. Dec pp. e-print: arxiv: [hep-ex] Observation of a centrality dependent dijet asymmetry in lead-lead collisions at 2.76 TeV with the ATLAS detector at the LHC Atlas Collaboration. Nov Published in Phys.Rev.Lett. 105 (2010) e-print: arxiv: [hep-ex]

10 Studies of the performance of the ATLAS detector using cosmic-ray muons The ATLAS Collaboration. Nov pp. Published in Eur.Phys.J. C71 (2011) 1593 e-print: arxiv: [physics.ins-det] Measurement of the W! l! and Z! ll production cross sections in pp collisions at 7 TeV with the ATLAS detector at the LHC Atlas Collaboration. CERN-PH-EP Oct pp. Published in JHEP 1012 (2010) 060 e-print: arxiv: [hep-ex] Search for quark contact interactions in dijet angular distributions in pp collisions at 7 TeV measured with the ATLAS detector ATLAS Collaboration. CERN-PH-EP Sep pp. Published in Phys.Lett. B694 (2011) e-print: arxiv: [hep-ex] Measurement inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector Atlas Collaboration. CERN-PH-EP Sep pp. Published in Eur.Phys.J. C71 (2011) 1512 e-print: arxiv: [hep-ex] Search for new particles in two jet final states in 7 TeV proton-proton collisions with the ATLAS detector at the LHC ATLAS Collaboration. Sep pp. Published in Phys.Rev.Lett. 105 (2010) e-print: arxiv: [hep-ex] Readiness of the ATLAS tile calorimeter for LHC collisions ATLAS Collaboration. CERN-PH-EP Jul pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det] The ATLAS detector digitization project for 2009 data taking Published in J.Phys.Conf.Ser. 219 (2010)

11 Commissioning of the ATLAS Muon Spectrometer with Cosmics Rays. ATLAS Collaboration pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det] Performance of the ATLAS Detector using First Collision Data. Atlas Collaboration. May pp. Published in JHEP 1009 (2010) 056 e-print: arxiv: [hep-ex] Data-driven background estimation for the H --> tautau --> lh search at 7 TeV with the ATLAS detector. ATLAS-CONF The ATLAS simulation infrastructure ATLAS Collaboration pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det] The ATLAS Inner Detector commissioning and calibration ATLAS Collaboration pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det] Charged particle multiplicity in pp interactions at 900 GeV measured with the ATLAS detector at the LHC ATLAS Collaboration. CERN-PH-EP Mar pp. Published in Phys.Lett. B688 (2010) e-print: arxiv: [hep-ex] Drift time measurement in the ATLAS liquid argon electromagnetic calorimeter using cosmic muons ATLAS Collaboration pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det]

12 Readiness of the ATLAS liquid argon calorimeter for LHC collisions ATLAS Collaboration pp. Published in Eur.Phys.J. C70 (2010) e-print: arxiv: [physics.ins-det] Charged Higgs Boson searches. ATLAS Collaboration (K. Assamagan et al.). ATL-PHYS-PUB , ATL-COM- PHYS May pp. ATLAS Sensitivity Prospects for 1 Higgs Boson Production at the LHC Running at 7, 8 or 9 TeV ATL-PHYS-PUB Further investigations of ATLAS Sensitivity to Higgs Boson Production in different assumed LHC. ATL-PHYS-PUB Cathode Strip Chambers in ATLAS: installation, commissioning and in situ performance. Published in IEEE Trans.Nucl.Sci. 56 (2009) From LHC to future collidters Published in Eur.Phys.J. C66 (2010) e-print: arxiv: [hep-ph] Muon reconstruction and identification: Studies with simulated Monte Carlo samples. ATL-PHYS-PUB Charged pion form factor between Q**2 = 0.60-GeV**2 and 2.45-GeV**2. I. Measurements of the cross section for the H-1(e,e-prime pi+)n reaction. Phys.Rev.C78:045202,2008 Charged pion form-factor between Q**2 = 0.60-GeV**2 and 2.45-GeV**2. II. Determination of, and results for, the pion form-factor Phys.Rev.C78:045203,2008 The ATLAS Experiment at the CERN Large Hadron Collider. JINST 3:S08003,2008

13 Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics arxiv: [hep-ex] Muons in the calorimeters: Energy loss corrections and muon tagging ATL-PHYS-PUB The ATLAS detector digitization project for 2009 data taking J.Phys.Conf.Ser.219:032031,2010 Implementation and performance of the third level muon trigger of the ATLAS experiment at LHC IEEE Trans.Nucl.Sci.53: ,2006. Determination of the pion charge form-factor for Q**2 = 0.60-GeV** GeV**2 Phys.Rev.C75:055205,2007 Calibration of a neutron polarimeter in the 0.2-GeV GeV region Nucl.Instrum.Meth.A557: ,2006 Discovery potential for a charged Higgs boson decaying in the charginoneutralino channel of the ATLAS detector at the LHC Eur.Phys.J.C44S2:1-9,2005, Erratum-ibid.C44S2:11,2005 The ATLAS discovery potential for a heavy charged Higgs boson in gg ---> tbh+with H+- ---> tb Eur.Phys.J.C39S2:25-40,2005 The Higgs working group: Summary report 2003 hep-ph/ Near threshold electroproduction of the omega meson at Q2 =~ 0.5-GeV2 Phys.Rev.C70:035203,2004 Determining the ratio of the H+ ---> tau nu to H+ ---> t anti-bb-bar decay rates for large tan beta at the large hadron collider hep-ph/ Design, commissioning and performance of the PIBETA detector at PSI Nucl.Instrum.Meth.A526: ,2004

14 An X-ray scanner for wire chambers Nucl.Instrum.Meth.A507: ,2003 Architecture of the ATLAS high level trigger event selection software Nucl.Instrum.Meth.A518: ,2004 A Study of the quasielastic (e,e-prime p) reaction on C-12, Fe-56 and Au-97 Phys.Rev.C68:064603,2003 A Nuclear physics program at the ATLAS experiment at the CERN large hadron collider. nucl-ex/ Separation of the longitudinal and transverse cross-sections in the p(e, e-prime K+) Lambda and p(e, e-prime K+) Sigma0 reactions Phys.Rev.C67:055205,2003 Prospects for the determination of the charged Higgs mass and tan(beta) with the ATLAS detector at the Large Hadron Collider Acta Phys.Polon.B33: ,2002 Search for the lepton flavor violating decay A0 / H0 ---> tau+- mu-+ at hadron colliders. Phys.Rev.D67:035001,2003 The hadronic tau decay of a heavy H+- in ATLAS Acta Phys.Polon.B33: ,2002 ATLAS discovery potential for a heavy charged Higgs boson Eur.Phys.J.direct C4:9,2002 Particle identification using the time-over-threshold method in the ATLAS Transition Radiation Tracker Nucl.Instrum.Meth.A474: ,2001 Measurement of longitudinal and transverse cross-sections in the He-3 (e, e-prime pi+) H-3 reaction at W = 1.6-GeV Phys.Rev.C65:011001,2002 The Hadronic tau decay of a heavy charged Higgs in models with singlet neutrino in large extra dimensions Phys.Rev.D65:076006,2002

15 Electroproduction of kaons on light nuclei Nucl.Phys.A691:37-42,2001 Longitudinal electroproduction of charged pions from H-1, H-2, He-3 Phys.Rev.Lett.87:202301,2001 Signature of the charged Higgs decay H+- --> W h0 with the ATLAS detector Acta Phys.Polon.B31: ,2000 Experimental verification of quark hadron duality. Phys.Rev.Lett.85: ,2000 Measurement of the Charged Pion Electromagnetic Form-Factor Phys.Rev.Lett.86: ,2001 Electron beam characteristics of a laser driven plasma wake field accelerator Nucl.Instrum.Meth.A438: ,1999 Coherent pi-0 photoproduction on the deuteron up to 4-GeV Phys.Rev.C60:052201,1999 Cosmic muon tomography of pure cesium iodide calorimeter crystals. Nucl.Instrum.Meth.A440:57-85,2000 Longitudinal and transverse cross-sections in the H-1(e,e' K+)Lambda reaction Phys.Rev.Lett.81: ,1998 Search for a heavy neutrino state in the decay pi+ ---> mu+ + neutrino/(mu) Phys.Lett.B434: ,1998 Upper limit of the muon-neutrino mass and charged pion mass from momentum analysis of a surface muon beam Phys.Rev.D53: ,1996 Measurement of the muon momentum in pion decay at rest using a surface muon beam Phys.Lett.B335: ,1994 Reaction pi+ p! pi+ pi0 p near threshold and chiral symmetry breaking Phys.Rev.Lett.72: ,1994