Stéphane MUNIER
"Directeur de recherche" at CNRS
Associate professor at École polytechnique
Research group: Mathematical Physics
| Address | CPHT, Ecole Polytechnique, 91128 Palaiseau cedex, France |
| Phone | 01 69 33 42 85 |
| Fax | 01 69 33 49 49 |
| Contact | firstname.lastname@polytechnique.edu |
| Office | Buliding 6, office 06.1033 |
Current interests
Branching processes and applications to high energy physics.
I am currently working mainly on branching random walks (with or without selection), an interdisciplinary subject at the interface between statistical physics and its applications, in particular to the theory of evolution in biology, and mathematics. My interest in the general study of these stochastic processes is actually rooted in problems of particle physics, the latter being my training specialty. My previous research has indeed shown that such processes are involved in the microscopic description of very high energy particle collisions, for which they constitute an effective theory of quantum chromodynamics. In particular, I have shown that the statistics of the extremes in the branching random walks correspond to the total cross sections of electron-atomic nucleus interactions, while some properties of the genealogies are found to be related to the diffractive cross sections.
PhD proposal starting in the Fall 2025
Genealogy of extreme particles in branching processes and links with particle physics observables
Former PhD student
Anh Dung Le (PhD 2018-2022)
Recent Articles
Le AD, Mueller AH, Munier S.
Nuclear scattering configurations of onia in different frames.
Physical Review D. 2021;103(5):054031.
DOI: 10.1103/PhysRevD.103.054031
Brunet É, Le AD, Mueller AH, Munier S.
How to generate the tip of branching random walks evolved to large times.
EPL. 2020;131(4):40002.
DOI: 10.1209/0295-5075/131/40002.
Mueller AH, Munier S.
Particle-number distribution in large fluctuations at the tip of branching random walks.
Physical Review E. 2020;102(2):022104.
DOI: 10.1103/PhysRevE.102.022104.
Most significant publications
Mueller A.H., Munier S.
Phenomenological picture of fluctuations in branching random walks.
Phys.Rev. E90 (2014) no.4, 042143.
Mueller A.H., Munier S.
p perpendicular to-Broadening and production processes versus dipole/quadrupole amplitudes at next-to-leading order.
Nuclear Physics A 2012;893:43-86.
arXiv:1206.1333
Iancu E., Mueller A.H., Munier S.
Universal behavior of QCD amplitudes at high energy from general tools of statistical physics
Phys.Lett. B 2005 ; 606 : 342-350
Brunet E., Derrida B., Mueller A. H., Munier S.
Phenomenological theory giving the full statistics of the position of fluctuating pulled fronts.
Physical Review E 2006 ; 73(5) : 056126.
Munier S., Peschanski R.
Geometric scaling as traveling waves
Phys.Rev.Lett. 2003 ; 91 : 232001
Munier S., Stasto A.M., Mueller A.H.
Impact parameter dependent S-matrix for dipole proton scattering from diffractive meson electroproduction
Nucl.Phys. B 2001 ; 603 : 427
Review papers
Munier S.
Statistical physics in QCD evolution towards high energies.
Sci.China Phys.Mech.Astron. 58 (2015) no.8, 81001.
Munier S.
Quantum chromodynamics at high energy and statistical physics.
Phys.Rept.473:1-49,2009
Thesis
Contributions à l'etude de la chromodynamique quantique perturbative appliquee à la diffusion profondement inelastique à petit x b j
PhD defense at Ecole Polytechnique, 2000
Advisor : R. Peschanski (Service de Physique Théorique, CEA-Saclay)
Habilitation thesis
Munier S.
Quantum chromodynamics at high energy and noisy traveling waves
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