TOTEM: Forward Physics at the LHC
Mario Deile
Abstract
The TOTEM experiment with its detectors in the forward region of CMS and the Roman Pots along the beam line will determine the total pp cross-section via the optical theorem by measuring both the elastic cross-section and the total inelastic rate. TOTEM will have dedicated runs with special high-beta* beam optics and a reduced number of proton bunches resulting in a low effective luminosity between 1.6 x 1028 cm-2 s-1 and 2.4 x 1029 cm-2 s-1. In these special conditions also an absolute luminosity measurement will be made, allowing the calibration of the CMS luminosity monitors needed at higher luminosities. The acceptance of more than 90 % of all leading protons in the Roman Pot system, together with CMS's central and TOTEM's forward detectors extending to a maximum rapidity of 6.5, makes the combined CMS+TOTEM experiment a unique instrument for exploring diffractive processes. Scenarios for running at higher luminosities necessary for hard diffractive phenomena with low cross-sections are under study.
Create a lesson
Related papers
Constraints on a Long-Lived X17 Vector Boson with FASER
FASER Collaboration, Roshan Mammen Abraham, Xiaocong Ai et al.
Study of the up-down asymmetry in B+ K+π+π-γ using K1(1270) amplitudes constrained by semileptonic D Decays
Yijia Zeng, Hailong Ma
Search for dark photon dark matter near 1\,meV using a superconducting mixer
K. Hanimura, S. Adachi, Y. Hasegawa et al.
Experimental Searches for Muon to Electron Conversion in Nuclei
Yoshitaka Kuno
Search for supersymmetric particle pair production in final states with two oppositely charged leptons and large missing transverse momentum in proton-proton collisions at s = 13 TeV
CMS Collaboration
Reinforcement Learning in High-Energy Physics: A Survey from Accelerator Control to Theory Exploration
Luca Anzalone