The goal of the LHCspin project is to develop innovative solutions for
measuring the 3D structure of nucleons in high-energy polarized fixed-target
collisions at LHC, exploring new processes and exploiting new probes in a
unique, previously unexplored, kinematic regime. A precise multi-dimensional
description of the hadron structure has, in fact, the potential to deepen our
understanding of the strong interactions and to provide a much more precise
framework for measuring both Standard Model and Beyond Standard Model
observables. This ambitious task poses its basis on the recent experience with
the successful installation and operation of the SMOG2 unpolarized gas target
in front of the LHCb spectrometer. Besides allowing for interesting physics
studies ranging from astrophysics to heavy-ion physics, SMOG2 provides an ideal
benchmark for studying beam-target dynamics at the LHC and demonstrates the
feasibility of simultaneous operation with beam-beam collisions. With the
installation of the proposed polarized target system, LHCb will become the
first experiment to simultaneously collect data from unpolarized beam-beam
collisions at $\sqrt{s}$=14 TeV and polarized and unpolarized beam-target
collisions at $\sqrt{s_{NN}}\sim$100 GeV. LHCspin has the potential to open new
frontiers in physics by exploiting the capabilities of the world’s most
powerful collider and one of the most advanced spectrometers. This document
also highlights the need to perform an R\&D campaign and the commissioning of
the apparatus at the LHC Interaction Region 4 during the Run 4, before its
final installation in LHCb. This opportunity could also allow to undertake
preliminary physics measurements with unprecedented conditions.

Questo articolo esplora i giri e le loro implicazioni.

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