Phat Srimanobhas

Experimental Particle Physicist @ CMS experiment, CERN LHC

About me

Hey there! I'm an Assistant Professor at Chulalongkorn University's Physics Department in Thailand. I teach fun stuff like "Physics in Films" and dive into deeper topics like Electromagnetism. I'm part of the Compact Muon Solenoid (CMS) crew, where we explore things like magnetic monopoles and use the CMS detector to seek out four top productions. Besides guiding my students through exciting projects at the Future Circular Collider and diving into machine learning, I also play a role in shaping the next phase of CMS software development. Back home, I take the lead in Thai-CERN research projects. Exciting times ahead!

Academic career

  • Jan - Dec 2024: LPC Distinguished researcher, Fermilab

  • Jan 2019 - June 2020: CERN scientific associates

  • Aug 2018 - Present: Assistant Professor, Department of Physics, Faculty of Science, Chulalongkorn University

  • Jan 2014 - July 2018: Lecturer, Department of Physics, Faculty of Science, Chulalongkorn University

  • 2011: Ph.D., University of Antwerp, Belgium and Chulalongkorn University, Thailand. Thesis advisors: Albert DE ROECK (UA) and Burin ASAVAPIBHOP (CU). Thesis title: Spin sensitive variables for the decay products of supersymmetric particles.

  • 2004: CERN summer student

  • 2003: B.Sc. (First Class Honors), Mahidol University, Thailand. Senior project advisor: Michael ANTONY ALLEN. Senior project title: The occultation of the asteroids.

Awards, memberships and roles:

  • 2024: Co-Chair of the Flavor Physics and CP Violation (Bangkok) and Asia-Europe-Pacific School of High Energy Physics (Thailand)

  • 2023: Track convener on “Offline Computing", the 26th International Conference on Computing in High Energy and Nuclear Physics (CHEP), Norfolk, USA

  • Jun 2022 - Present: International advisory committee, Flavor Physics and CP violation (FPCP) conferences

  • Jan 2022 - Present: Principal investigator (PI) for Thai HEP research proposals

  • Since 2018: Sub-Committee on CERN-DESY-GSI/FAIR Project under the Royal Initiative of Her Royal Highness Princess Maha Chakri Sirindhorn

Roles at CMS

  • Jan 2022 - Present: Team leader of Chulalongkorn university in CMS collaboration

  • Jan 2021 - Present: Level-2 convener of CMS Phase-2 software, Offline and Computing coordination

  • Jul 2018 - Aug 2020: Level-1 coordinator of Physics Performance and Dataset (PPD) group

  • Sep 2017 - 2023: CMS School Committee

  • Sep 2013 - Aug 2016: Level-2 convener of Physics Data-Monte Carlo Validation

  • 2013: Monte Carlo contact person of Higgs-Exotica group

  • 2013 - Present: Official CERN and CMS guides

  • 2012 - 2013: Physics Performance and Dataset (PPD) contact person of Exotica group, and Data Quality Monitoring (DQM) developer, and validator for both JetMET trigger and SUSY groups

  • 2011 - 2021: Deputy team leader of Chulalongkorn University in CMS Collaboration

  • 2011 - 2016: Physics Analysis Tools tutorial team

My teaching at Chulalongkorn University

2023 | 2022 | 2021 | 2020

2019 (no class) | 2018 (no class) | 2017 | 2016 | 2015 | 2014

My Git

  • My GitHub [Link]

  • CU e-Science HTC-HPC Cluster and Cloud [Link]

Selected publications

  • A New Higgs Boson with Electron-Muon Flavor-Violating Couplings, Physics Letters B 845 (2023) 138129, R. Primulando, J. Julio, N. Srimanobhas, P. Uttayarat

  • Evidence for four-top quark production in proton-proton collisions sqrt(s) = 13TeV, CMS collaboration, PLB 844 (2023) 138076 (thesis co-supervisor, with Freya Blekman, of Vichayanun Wachirapusitanand)

  • Code Transformation Impact on Compiler-based Optimization: A Case Study in the CMSSW, T. Ploensin (Chulalongkorn U.), K. Piromsopa (Chulalongkorn U.), N. Srimanobhas(Chulalongkorn U.), J.Phys.Conf.Ser. 1936 (2021) 1, 012023. (thesis co-supervisor)

  • Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at sqrt(s) = 13TeV, CMS collaboration, JHEP 11 (2019) 082. (thesis co-supervisor, with Freya Blekman, of Vichayanun Wachirapusitanand)

  • The CMS trigger system, CMS collaboration, JINST 12 (2017) P01020. (author of HLT MET section)

  • Search for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at sqrt(s) = 13 TeV, CMS collaboration, JHEP 03 (2017) 061, Erratum: JHEP 01 (2018) 056. (analysis review committee)

  • Searches for third-generation squark production in fully hadronic final states in proton-proton collisions at sqrt(s) = 8 TeV, CMS collaboration, JHEP 06 (2015) 116. (co-author)

  • Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at sqrt(s) = 8 TeV, CMS Collaboration, Eur. Phys. J. C 75 (2015) 235. (co-author)

  • Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes, CMS Collaboration, Eur. Phys. J. C 74 (2014) 2980. (co-author)

  • Search for dark matter and large extra dimensions in monojet events in pp collisions at sqrt(s) = 7 TeV, CMS Collaboration, JHEP 1209, 094 (2012). (co-author)

  • A review of the spin determination of supersymmetric decay chain via neutralino at the LHC, N. Srimanobhas and B. Asavapibhop., J. Phys. G 38, 075001 (2011). (author, Ph.D. Thesis.)

Contact me

  • Emails: phat.s[-AT-], Norraphat.S[-AT-]

  • Post: Norraphat SRIMANOBHAS Department of Physics, Faculty of Science, Chulalongkorn University, 254 Phaya Thai Rd, Wang Mai, Pathum Wan, Bangkok, THAILAND 10330

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