Camille Beluffi

Former member
Member from August 2011
Research directions:
Phenomenology of elementary particles
Data analysis in HEP and GW experiments
Detector commissioning, operation and data processing

Experiments and collaborations:

Active projects
Search for Higgs boson(s) in CMS at the LHC in the llbb topology
Agni Bethani, Florian Bury, Jérôme de Favereau, Christophe Delaere, Khawla Jaffel, Vincent Lemaitre, Sébastien Wertz

Search for Higgs boson(s) within the Standard Model and beyond and also withing a minimal extension of the scalar sector (2HDM).

The final state under study is a Z decaying into a lepton pair associated with two b-jets. This topology is sensitive to a light SM Higgs via the associate ZH production, as well as a middle mass range SM Higgs boson via the inclusive Higgs production followed by its decay into ZZ with one Z decaying into a lepton pair and the other into bbar.

It is also very sensitive to the production of a non standard heavy Higgs boson decaying into Z plus A (pseudo scalar Higgs boson).

Similar selection (but outside of the Z window) is also sensitive to H->aa->llbb, with "a" a generic light scalar.

External collaborators: CMS collaboration.
Study and optimization of b-tagging performances in CMS
Agni Bethani, Christophe Delaere, Khawla Jaffel, Sébastien Wertz

We are involved in the activities of the btag POG (performance object group) of CMS, in release and data validation and purity measurement. We are also interested in btagging in special cases like for colinear b-jets. Furthermore, we are involved in the re-optimization and improvement of the Combined Secondary Vertex (CSV) tagger for the 2012 analyses.

External collaborators: Strasbourg CMS group, CMS collaboration.

Non-active projects
Publications in CP3
All my publications on Inspire

Number of publications as CP3 member: 8 Download BibTeX

Last 5 publications


CP3-14-40: Evidence for the direct decay of the 125 GeV Higgs boson to fermions
Chatrchyan, Serguei and others

[Abstract] [PDF] [Journal] [Dial]
Subjects: High Energy Physics - Experiment (hep-ex)
Journal reference: Nature Physics 10 (2014) 557
DOI: 10.1038/nphys3005
Report number: CMS-HIG-13-033, CERN-PH-EP-2014-004
Refereed paper. July 1.
CP3-14-13: Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at $sqrt{s}$ = 7 TeV
Chatrchyan, Serguei and others

[Abstract] [PDF] [Journal] [Dial] [Full text]
Published in JHEP 1406 (2014) 120
Refereed paper. February 10.


CP3-13-43: Performance of b tagging at sqrt(s)=8 TeV in multijet, ttbar and boosted topology events
The CMS Collaboration

[Full text]
Public experimental note. August 26.
CP3-13-42: Matrix Element method applied for ttbar estimation in Z(ll)bb analysis.
A. Pin V. Lemaitre C. Beluffi J. Vizan

[Full text]
Supporting document for SMP-13-004
Private experimental note. August 26.
CP3-13-37: Combination of b-tagging efficiency measurements in 2012 data at 8 TeV pp collision
Wolfgang Adam, J\'er\'emy Andrea, Camille Beluffi, Daniel Bloch, Adrien Caudron, Harry Cheung, Caroline Collard, Thomas Danielson, Alexis Descroix, Tristan du Pree, Juan Pablo Fernandez Ramos, Cristina Ferro, Alex Garabedian, Pablo Goldenzweig, Juan Pablo Gomez Cardona, Rebekka Hoing, Ketino Kaadze, James Keaveney, Dan Knowlton, Patricia Lobelle Pardo, Michael Maes, Sudhir Malik, Ivan Marchesini, Ernesto Migliore, Niklas Mohr, Marco Musich, Meenakshi Narain, Andrea Rizzi, Alexander Schmidt, Luca Scodellaro, Michael Segala, Pedro Silva, Thomas Speer, Alberto Traverso, Pierre Van Hove, Petra Van Mulders, Gerrit Van Onsem, Caterina Vernieri, Jesus Vizan, Roberval Walsh, Jinzhong Zhang

[Full text]
Private experimental note. August 26.

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