I am an experimental particle physicist currently working in the CMS experiment, which is one of the 4 large experiments currently underway at the Large Hadron Collider (LHC) at the European Center for Nuclear Research (CERN). My research is primarily focussed on Higgs boson physics with special emphasis on Higgs decays involving hadronically decaying tau leptons. I did my M.Sc in Physics from I.I.T Delhi and Ph.D from Tata Institute Of Fundamental Research, Mumbai. I was a post-doctoral fellow in the Lab of High Energy and Computational Physics at the National Institute of Chemical Physics  and Bio-Physics (KBFI), Tallinn, Estonia.

Experimental Particle Physics, Higgs Physics, Collider Physics

1. Awarded diploma in advanced computing by the CERN IT department in association with Universidad Polytechnica de Madrid (Spain) at the CERN Computing School (CSC-2017).
2. Obtained All India Rank 66 at the Graduate Aptitude Test Exam (GATE-2010) in Physics.
3. Obtained All India Rank 32 at the National Eligibility Test (NET) in Physical Sciences with the award of Junior Research Fellowship (JRF) by the Council of Science and Industrial Resarch (CSIR) in 2009. 
4. Won Gold Medal at the National Graduate Physics Exam (NGPE-2008) conducted by the Indian Association of Physics teachers (IAPT).
5. Won the Delhi University All India Entrance Scholarship and held it for the full duration (3 years) of undergraduate studies.

The publication policy of particle physics experiments demand that they list all collaboration members as authors (in all publications) in strict alphabetical order. This reflects the acknowledgement of the considerable efforts from all collaborators in the detector construction, maintenance, data-acquisition, data-reconstruction and detector calibration which are pre-requisites to all data analyses. As a member of the CMS collaboration, I have authored more than 900 peer-reviewed journal publications. The total number of my citable papers (for the period, Jan. 2014-till today) are given at the Inspire-HEP link here: 

https://inspirehep.net/literature?sort=mostrecent&size=25&page=2&q=Ram%20Krishna%20Dewanjee

The following are those CMS publications to which I have made significant personal contributions:

1. “Evidence for direct decay of the 125 GeV Higgs boson to fermions”, CMS Collaboration, Nature Physics, 10, 557-560, 2014.
2. “Evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons”, CMS Collaboration, Journal Of High Energy Physics, 5, 104-176, 2014.
3. “Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions”, CMS Collaboration, Journal Of High Energy Physics, 10,160-214, 2014.
4. “Search for Higgs boson pair production in the bbtautau final state in proton-proton collisions at √s = 13 TeV”, CMS collaboration, Physical Review D, 96, 072004-072029, 2017.
5. “Measurement of Z to tautau cross section in pp collisions at √s = 13 TeV and validation of tau lepton analysis techniques”, CMS collaboration, European Physical Journal C, 78, 708-750, 2018.
6. “Observation of ttH production”, CMS collaboration, Physical Review Letters, 120, 231801-231818, 2018.
7. “Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons and hadronically decaying tau leptons at √s = 13 TeV”, CMS collaboration, Journal Of High Energy Physics, 8, 66-121, 2018
8. “Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at √s = 13 TeV”, CMS collaboration, European Physical Journal C, 81, 378-429, 2021.
9. “Search for Higgs boson pairs decaying to WWWW, WWττ, and ττττ in proton-proton collisions at √s = 13 TeV”, CMS collaboration, JHEP 07 (2023) 095
10. “A portrait of the Higgs boson by the CMS experiment ten years after the discovery ”, Nature, Vol 607, 7^th July 2022
11. “Search for Higgs boson pair production in the bb ?W+W− decay mode in proton-proton collisions at √s = 13 TeV”, CMS collaboration, JHEP 07 (2024) 293

Member of the CMS collaboration since 2012. 

Life time member of the Indian Physics Association since 2023 (Membership No.: LM-2023-BIH-13819)

Received BIT Seed money grant of Maximum amount fo Rs 5 lakhs (Order: DRIE/SMS/DRIE-10880/2024-25/1310) for “Creation of a multipurpose FPGA based setup fro trigger, DAQ and machine leanring algorithm development for High Energy Physics applications”