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Sep 24 – 29, 2023
US/Eastern timezone

Fixed Target Program at the LHC

Sep 29, 2023, 3:00 PM
30m
Grand Ballroom 3 (Durham Convention Center)

Grand Ballroom 3

Durham Convention Center

Talk Plenary Plenary

Speaker

Pasquale Di Nezza (INFN Frascati)

Description

Fixed-target pp and pA collisions with a proton beam at the TeV scale provide unique laboratories for studying of the nucleon’s internal dynamics and, more in general, for investigating the complex phenomena that arise in the non-perturbative regime of QCD. Due to the significant boost of the reaction products in the laboratory frame, fixed-target collisions allow to access the poorly explored backward center-of-mass rapidity region, corresponding to the high x-Bjorken and high negative x-Feynman regimes. Thanks to its forward acceptance and outstanding performance, the LHCb detector at the LHC is perfectly suited for reconstructing particles produced in fixed-target collisions, simultaneous with the beam-beam interactions, at energies varying from √s_NN=72 GeV to √s=115 GeV. The recently installed unpolarised fixed-target system (SMOG2) paves the way to this new technology at LHC, facilitating quantitative searches also using rare probes like c- or b-quarks. In addition, SMOG2 will serve as R&D for the proposed polarised gas target project, LHCspin. This presentation provides an overview of the unpolarised results and outlines the future polarised project.

Primary author

Pasquale Di Nezza (INFN Frascati)

Presentation materials