Contact
Name
Adrien Caudron

Position
Former member
Member from October 2011 to November -0001
Projects
Research directions:
Phenomenology of elementary particles
Data analysis in HEP experiments
Detector commissioning, operation and data processing

Experiments and collaborations:
CMS

Active projects
Development of a framework for fast simulation of a generic collider experiment: Delphes
Jérôme de Favereau, Christophe Delaere, Pavel Demin, Andrea Giammanco, Vincent Lemaitre

Observability of new phenomenological models in High Energy experiments is delicate to evaluate, due to the complexity of the related detectors, DAQ chain and software. Delphes is a new framework for fast simulation of a general purpose experiment. The simulation includes a tracking system, a magnetic field, calorimetry and a muon system, and possible very forward detectors arranged along the beamline. The framework is interfaced to standard file format from event generators and outputs observable analysis data objects. The simulation takes into account the detector resolutions, usual reconstruction algorithms for complex objects (FastJet) and a simplified trigger emulation. Detection of very forward scattered particles relies on the transport in beamlines with the Hector software.
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

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

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: 14 Download BibTeX

Last 5 publications

2016

CP3-16-19: Search for A/H to Z(ll)+H/A(bb) with 2015 data
CMS collaboration

[Full text]
Prepared for Moriond 2016
Public experimental note. April 28.
CP3-16-18: Search for Neutral Resonances Decaying into a Z Boson and a Pair of b Jets or Tau Leptons
CMS collaboration

[Abstract] [PDF] [Journal] [Dial] [Full text]
Published in Phys. Lett. B 759 (2016) 369
Refereed paper. April 28.
CP3-16-16: Summary results of high mass BSM Higgs searches using CMS run-I data
CMS Collaboration

[Full text]
CMS Physics Analysis Summary CMS-PAS-HIG-16-007,
Public experimental note. April 22.

2015

CP3-15-43: Search for H/A decaying into Z and A/H, with Z-->ll and A/H-->bb or A/H-->tau tau
CMS Collaboration

[Full text]
CMS-PAS-HIG-15-001
Public experimental note. December 1.

2014

CP3-14-74: Generic search for a Two Higgs Doublet Model in the Z(ll)+bb final state
R. Castello, A. Caudron, C. Delaere, T.A. du Pree, A. Mertens

[Full text]
CMS AN-2014/029
Restricted access (CMS internal analysis note)
Private experimental note. November 24.

More publications