Production and Hadronic Decays of Higgs Bosons in Heavy-Ion Collisions

Berger, Edmond L. (High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Gao, Jun (INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China) ; Jueid, Adil (INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China) ; Zhang, Hao (Theoretical Physics Division, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China) (School of Physics, University of Chinese Academy of Science, Beijing 100049, China)

01 February 2019

Abstract: We examine Higgs boson production and decay in heavy-ion collisions at the LHC and future colliders. Owing to the long lifetime of the Higgs boson, its hadronic decays may experience little or no screening from the hot and dense quark-gluon plasma, whereas jets from hard scattering processes and from decays of the electroweak gauge bosons and the top quark suffer significant energy loss. This distinction can lead to enhanced signal to background ratios in hadronic decay channels and thus, for example, provide alternative ways to probe the Yukawa coupling of the Higgs boson to the bottom quark and its lifetime.


Published in: Physical Review Letters 122 (2019)
Published by: APS
DOI: 10.1103/PhysRevLett.122.041803
arXiv: 1804.06858
License: CC-BY-4.0



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