"Chargé de recherche" at CNRS
Research group: Particle Physics
Research interests
Phenomenology and theory of hadronic physics, from moderate to asymptotic energies and from exclusive processus to inclusive processes. Gluonic saturation at high energy and physics beyond the leading twist.
I study a wide range of theoretical aspects of quantum chromodynamics for collider physics (LHC, future EIC). I work on precision physics (perturbative corrections) with gluonic saturation eects for exclusive processes, and partonic tomography of hadrons via generalized parton distributions at more moderate energies. I have proven an exact correspondence between mathematical descriptions of the saturation regime and parton distributions beyond the leading twist, and I am still studying its theoretical and phenomenological implications. For example, the correspondence allows for a better understanding of spin physics at high energies, and for an experimental distinction between dierent eects of multiple scattering in the saturated regime.
Publications
Signature of the Gluon Orbital Angular Momentum.
Bhattacharya S, Boussarie R, Hatta Y.
Physical Review Letters. 2022;128(18):182002.
DOI: 10.1103/PhysRevLett.128.182002.
A novel formulation of the unintegrated gluon distribution for DIS.
Boussarie R, Mehtar-Tani Y.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2022;831:137125.
DOI: 10.1016/j.physletb.2022.137125.
The importance of kinematic twists and genuine saturation eects in dijet production at the Electron-Ion
Collider
Renaud Boussarie (Ecole Polytechnique,CPHT), Heikki Mäntysaari (Jyvaskyla U. and Helsinki Inst.
of Phys.) , Farid Salazar (SUNY, Stony Brook and Brookhaven and Stony Brook U.) , Björn Schenke
(Brookhaven)JHEP 09 (2021) 178
QCD analysis of near-threshold quarkonium leptoproduction at large photon virtualities
Renaud Boussarie (Brookhaven), Yoshitaka Hatta (Brookhaven)
(Apr 27, 2020)
Phys.Rev.D 101 (2020) 11, 114004
Gauge invariance of transverse momentum dependent distributions at small x
Renaud Boussarie (Los Alamos Natl. Lab., Theor. Div.), Yacine Mehtar-Tani (Brookhaven and RIKEN
BNL)
Phys.Rev.D 103 (2021) 9, 094012
Photoproduction of three jets in the CGC: gluon TMDs and dilute limit
Tolga Altinoluk (NCBJ, Warsaw), Renaud Boussarie (Brookhaven) , Cyrille Marquet (Ecole Polytechnique,
CPHT) , Pieter Taels (Ecole Polytechnique, CPHT and Cagliari U. and INFN, Cagliari)
JHEP 07 (2020) 143
Probing the Gluon Sivers Function with an Unpolarized Target: GTMD Distributions and the Odderons
Renaud Boussarie (Brookhaven), Yoshitaka Hatta (Brookhaven), Lech Szymanowski (NCBJ, Warsaw),
Samuel Wallon (Paris, LPTHE and Paris U., IV)
Phys.Rev.Lett. 124 (2020) 17, 172501
Towards a complete next-to-logarithmic description of forward exclusive diractive dijet electroproduction
at HERA: real corrections
R. Boussarie (Brookhaven) , A.V. Grabovsky (Novosibirsk, IYF and Novosibirsk State U.), L. Szymanowski
(NCBJ, Warsaw), S. Wallon (Orsay, LPT and Paris U., IV)
Phys.Rev.D 100 (2019) 7, 074020
Proton Spin Structure at Small-x
Renaud Boussarie (Brookhaven), Yoshitaka Hatta (Brookhaven), Feng Yuan (LBNL, NSD)
Phys.Lett.B 797 (2019) 134817
Low x physics as an innite twist (G)TMD framework: unravelling the origins of saturation
Tolga Altinoluk (NCBJ, Warsaw), Renaud Boussarie (Brookhaven)
JHEP 10 (2019) 208
Interplay of the CGC and TMD frameworks to all orders in kinematic twist
Tolga Altinoluk (NCBJ, Warsaw), Renaud Boussarie (Brookhaven and Cracow, INP), Piotr Kotko (Cracow,
INP)
JHEP 05 (2019) 156
TMD factorization for dijets + photon production from the dilute-dense CGC framework
Tolga Altinoluk (NCBJ, Warsaw), Renaud Boussarie (Cracow, INP and Brookhaven), Cyrille Marquet
(Ecole Polytechnique, CPHT), Pieter Taels (INFN, Pavia)
JHEP 07 (2019) 079
Probing the Weizsäcker-Williams gluon Wigner distribution in pppppp collisions
Renaud Boussarie (Cracow, INP), Yoshitaka Hatta (Kyoto U., Yukawa Inst., Kyoto), Bo-Wen Xiao
(CCNU, Wuhan, Inst. Part. Phys. and Hua-Zhong Normal U., LQLP and Ecole Polytechnique, CPHT),
Feng Yuan (LBNL, NSD)
Phys.Rev.D 98 (2018) 7, 074015
Forward J/Psi and very backward jet inclusive production at the LHC
R. Boussarie (Cracow, INP), B. Ducloué (Jyvaskyla U. and Helsinki Inst. of Phys.), L. Szymanowski
(Warsaw, Inst. Nucl. Studies), S. Wallon (Orsay, LPT)
Phys.Rev.D 97 (2018) 1, 014008
Next-to-Leading Order Computation of Exclusive Diractive Light Vector Meson Production in a Saturation
Framework
R. Boussarie (Cracow, INP), A.V. Grabovsky (Novosibirsk State U. and Novosibirsk, IYF), D. Yu. Ivanov
(Novosibirsk State U. and Sobolev IM, Novosibirsk), L. Szymanowski (Warsaw, Inst. Nucl. Studies), S.
Wallon (Orsay, LPT and UPMC, Paris (main))
Phys.Rev.Lett. 119 (2017) 7, 072002
Exclusive photoproduction of a g r\gamma\,\rhogr pair with a large invariant mass
R. Boussarie (Orsay, LPT), B. Pire (Ecole Polytechnique, CPHT), L. Szymanowski (Warsaw, Inst. Nucl.
Studies), S. Wallon (Orsay, LPT and UPMC, Paris (main))
JHEP 02 (2017) 054
On the one loop photon(*)-> quark+antiquark impact factor and the exclusive diractive cross sections
for the production of two or three jets
R. Boussarie (Orsay, LPT), A.V. Grabovsky (Novosibirsk State U. and Novosibirsk, IYF and Minnesota
U., Duluth), L. Szymanowski (Warsaw, Inst. Nucl. Studies), S. Wallon (Orsay, LPT and UPMC, Paris
(main))
JHEP 11 (2016) 149
Impact factor for high-energy two and three jets diractive production
R. Boussarie (Orsay, LPT), A.V. Grabovsky (Novosibirsk, IYF and Novosibirsk State U.), L. Szymanowski
(Warsaw U. and Warsaw, Inst. Nucl. Studies), S. Wallon (Orsay, LPT and Paris U., VI-VII
and UPMC, Paris (main))
JHEP 09 (2014) 026