We review key measurements performed by CMS in the context of its heavy ion physics
program, using event samples collected in 2010–2018 with several collision systems and …

Ultraperipheral collisions (UPCs) of heavy ions and protons are the energy frontier for
electromagnetic interactions. Both photonuclear and two-photon collisions are studied at …

A bstract The automated generation of arbitrary exclusive final states produced via photon
fusion in ultraperipheral high-energy collisions of protons and/or nuclei, AB\(\overset …

The Breit-Wheeler process which produces matter and antimatter from photon collisions is
experimentally investigated through the observation of 6085 exclusive electron-positron …

We show that ultraperipheral heavy-ion collisions at the Large Hadron Collider (LHC) can
be used to search for axionlike particles with mass below 100 GeV. The Z 4 enhanced …

Ultra-peripheral collisions (UPCs) have been a significant source of study at RHIC and the
LHC. In these collisions, the two colliding nuclei interact electromagnetically, via two-photon …

The ALICE Collaboration at the LHC has measured the J/ψ and ψ′ photoproduction at mid-
rapidity in ultra-peripheral Pb–Pb collisions at\(\sqrt {s_ {\mathrm {NN}}}= 2.76~\mathrm …

The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction
in ultra-peripheral Pb–Pb collisions at sNN= 2.76 TeV. The J/ψ is identified via its dimuon …

The cross section for coherent J/ψ photoproduction accompanied by at least one neutron on
one side of the interaction point and no neutron activity on the other side, X n 0 n, is …

We investigate the impact of soft gluon resummation on the azimuthal angle correlation
between the total and relative momenta of two energetic final-state particles (jets). We show …