Speaker
Description
The AMBER experiment at CERN represents a next-generation fixed-target QCD facility designed to investigate the internal structure and dynamics of hadrons with unprecedented precision. In the middle of the data taking for the Phase-I program, AMBER presently focused on focused on antiproton production cross sections, high-precision determinations of the proton charge radius, and studies of pion structure via Drell–Yan and charmonium production. Phase-II will extend the physics reach using an intense high-energy hadron beam made possible by an upgraded M2 beam line at SPS, exploiting the kaons and antiprotons in the beam. The program under development will target, among others:
• measurements in the strange quark sector, such as the excitation spectrum of strange mesons, precision spectroscopy of kaon resonances, and searches for exotic hadronic states inaccessible in current datasets,
• precision measurements of the kaon charge radius via elastic scattering processes,
• measurement of the partonic structure of kaons through prompt photon and kaon-induced Drell–Yan production, complement existing data on pions and protons, providing critical input for global hadron structure studies.
The AMBER Phase-II program thus opens a new frontier in strong-interaction physics, expanding the experimental reach into the strange-quark domain with implications for QCD phenomenology and hadron spectroscopy
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