5 papers
Search for heavy top quark partners with charge 5/3 in the single-lepton final state in proton-proton collisions at = 13 TeV
CMS Collaboration
A search for the pair production of a vector-like quark, X, a heavy fermionic partner of the top quark with an electric charge of 5/3, is presented. The search is performed…
Constraints on a Long-Lived X17 Vector Boson with FASER
FASER Collaboration, Roshan Mammen Abraham, Xiaocong Ai +133
The ATOMKI anomalies motivate the possibility of a new particle, the X17, with a mass of 17 MeV and weak couplings to nuclei and electrons. Such a particle may be produced at the L…
Probing the charm-quark dead cone effect in heavy ion collisions
CMS Collaboration
The first experimental study of the dead-cone effect for the charm quark in heavy ion collisions is presented. The analysis is based on a sample of lead-lead (PbPb) collisions at a…
Electromagnetic Shower Reconstruction and Identification in FASER's Emulsion Detector for LHC Forward Neutrino Measurements
FASER Collaboration, Roshan Mammen Abraham, Xiaocong Ai +132
We present methods for electromagnetic shower reconstruction and identification in the FASERnu emulsion detector using 100 GeV and 200 GeV electron test-beam data from the CERN SPS…
Momentum Measurement of Charged Particles in FASER's Emulsion Detector at the LHC
FASER Collaboration, Roshan Mammen Abraham, Xiaocong Ai +132
We present a momentum measurement method based on multiple Coulomb scattering (MCS) in the FASER emulsion detector. The measurement of charged-particle momenta is essential for…