Contact
Name
Laurent Forthomme

Position
Former member
PhD student in CP3 from September 2010 to April 2016
Current position: Postdoctoral researcher at the University of Helsinki

Personal homepage
https://lforthom.web.cern.ch/lforthom/
Cosmic Bench
Wiki page: here

GIT repository: here
Projects
Research directions:
Phenomenology of elementary particles
Data analysis in HEP experiments
Research and development of new detectors

Experiments and collaborations:
CMS
FP420

Active projects
GasToF: ultra fast timing detector
Krzysztof Piotrzkowski

GasToF (Gas Time-of-Flight) detector is a Cherenkov detector developed for very precise (with ~10 ps resolution) flight time measurements of very forward protons at the LHC. Such an excellent time resolution allows, using z-by-timing technique, for precise measurements of the event vertex z-coordinate and the background reduction. This detector is essential for selecting exclusive and semi-exclusive processes at the LHC, and can also be applied for the particle ID at future experiments.

External collaborators: CMS PPS project, M. Albrow (Fermilab), M. Khakzad (Tehran), J. Varela (Lisbon), and E. Schnys (Photonis) and J. Howorth (Photek Ltd).
High energy photon induced interactions at the LHC
Krzysztof Piotrzkowski

High-energy photon-photon and photon-proton interactions at the LHC offer interesting possibilities for the study of the electroweak sector up to TeV scale and the search for processes beyond the Standard Model. After in-depth exploratory studies, we performed using the CMS data first measurement of two-photon muon pair production as well as first ever observation of W boson pairs produced by photon fusion. Now our group is leading unique investigations of quartic couplings between photons and W and Z bosons.

External collaborators: CMS FSQ analysis group and the group of A. Szczurek (Krakow).

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

Number of publications as CP3 member: 7 Download BibTeX

Last 5 publications

2016

CP3-16-13: Evidence for exclusive gamma-gamma to W+ W- production and constraints on anomalous quartic gauge couplings at sqrt(s) = 7 and 8 TeV
Khachatryan, Vardan and others

[Abstract] [PDF] [Journal] [Dial]
Submitted to JHEP
Refereed paper. April 19.

2015

CP3-15-34: Evidence for exclusive gamma-gamma to W+ W- production and constraints on Anomalous Quartic Gauge Couplings at sqrt-s = 8 TeV
CMS collaboration

[Full text]
Public experimental note. October 3.

2014

CP3-14-62: Central $\mu^{+}\mu^{-}$ production via photon-photon fusion in proton-proton collisions with proton dissociation
Gustavo Gil da Silveira, Laurent Forthomme, Krzysztof Piotrzkowski, Wolfgang Sch\"afer, and Antoni Szczurek

[Abstract] [PDF] [Journal] [Dial]
26 pages, 40 figures, 2 tables, submitted to JHEP
Refereed paper. September 4.
CP3-14-04: Exclusive processes in proton-proton collisions with the CMS experiment at the LHC
Forthomme, Laurent

[Abstract] [PDF]
Proceedings of the Low x workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel
Contribution to proceedings. January 8.

2013

CP3-13-24: Study of exclusive two-photon production of $W^+W^-$ in pp collisions at $sqrt{s}$ = 7 TeV and constraints on anomalous quartic gauge couplings
CMS Collaboration

[Abstract] [PDF] [Journal] [Dial] [Full text 1] [Full text 2]
Published in JHEP 07 (2013) 116 [FSQ-12-010]
Refereed paper. May 31.

More publications