TY - GEN
T1 - Studies for new experiments at the CERN M2 beamline within "physics beyond colliders"
T2 - 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2019
AU - Bernhard, Johannes
AU - Banerjee, Dipanwita
AU - Montbarbon, Eva
AU - Brugger, Markus
AU - Charitonidis, Nikolaos
AU - Cholak, Serhii
AU - D'Alessandro, Gian Luigi
AU - Gatignon, Lau
AU - Gerbershagen, Alexander
AU - Rae, Bastien
AU - Rosenthal, Marcel
AU - Dijk, Maarten Van
AU - Veit, Benjamin Moritz
N1 - Publisher Copyright:
© 2020 Author(s).
PY - 2020/7/27
Y1 - 2020/7/27
N2 - The "Physics Beyond Colliders (PBC)" study explores fundamental physics opportunities at the CERN accelerator complex complementary to collider experiments. Three new collaborations aim to exploit the M2 beamline in the North Area with existing high-intensity muon and hadron beams, but also aspire to go beyond the current M2 capabilities with a RF-separated, high-intensity hadron beam, under study. The AMBER/COMPASS++ collaboration proposes an ambitious program with a measurement of the proton radius with muon beams, as well as QCD-related studies from pion PDFs / Drell-Yan to cross section measurements for dark sector searches. Assuming feasibility of the RF-separated beam, the spectrum of strange mesons would enter a high precision era while kaon PDFs as well as nucleon TMDs would be accessible via Drell-Yan reactions. The NA64μ collaboration proposes to search for dark sector mediators such as a dark scalar A′ or a hypothetical Zμ using the M2 muon beam and complementing their on-going A′ searches with electron beams. The MuonE collaboration intends to assess the hadronic component of the vacuum polarization via elastic μ - e scattering, the dominant uncertainty in the determination of gμ - 2. An overview of the three new experimental programs will be presented together with implications for the M2 beamline and the experimental area EHN2, based on the studies of the PBC "Conventional Beams" Working Group.
AB - The "Physics Beyond Colliders (PBC)" study explores fundamental physics opportunities at the CERN accelerator complex complementary to collider experiments. Three new collaborations aim to exploit the M2 beamline in the North Area with existing high-intensity muon and hadron beams, but also aspire to go beyond the current M2 capabilities with a RF-separated, high-intensity hadron beam, under study. The AMBER/COMPASS++ collaboration proposes an ambitious program with a measurement of the proton radius with muon beams, as well as QCD-related studies from pion PDFs / Drell-Yan to cross section measurements for dark sector searches. Assuming feasibility of the RF-separated beam, the spectrum of strange mesons would enter a high precision era while kaon PDFs as well as nucleon TMDs would be accessible via Drell-Yan reactions. The NA64μ collaboration proposes to search for dark sector mediators such as a dark scalar A′ or a hypothetical Zμ using the M2 muon beam and complementing their on-going A′ searches with electron beams. The MuonE collaboration intends to assess the hadronic component of the vacuum polarization via elastic μ - e scattering, the dominant uncertainty in the determination of gμ - 2. An overview of the three new experimental programs will be presented together with implications for the M2 beamline and the experimental area EHN2, based on the studies of the PBC "Conventional Beams" Working Group.
U2 - 10.1063/5.0008957
DO - 10.1063/5.0008957
M3 - Conference contribution
AN - SCOPUS:85089418775
T3 - AIP Conference Proceedings
BT - Proceedings of the 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon
A2 - Meyer, Curtis
A2 - Schumacher, Reinhard A.
PB - American Institute of Physics Inc.
Y2 - 2 June 2019 through 7 June 2019
ER -