Recent results from the TOTEM collaboration at the LHC

TL;DR

The TOTEM collaboration's recent measurements at the LHC include elastic cross sections at multiple energies, revealing no high-$t$ structures or resonances, and providing $ ho$ parameter estimates at 13 TeV, challenging simple exponential models.

Contribution

First detailed elastic scattering measurements at multiple LHC energies, including the $ ho$ parameter at 13 TeV, with implications for theoretical models.

Findings

No high-$t$ structures or resonances observed.

Pure exponential form of $d \sigma/dt$ is excluded at 8 and 13 TeV.

Measured $ ho$ parameter at 13 TeV.

Abstract

We describe the most recent results from the TOTEM collaboration at the LHC, namely the elastic cross section measurements at a center-of-mass on 2.76, 7, 8 and 13 TeV. No structure or resonance is observed at high $t$ at high center-of-mass energies. A pure exponential form of $d \sigma/dt$ is excluded both at 8 and 13 TeV. Accessing the very low $t$ region allows measuring the $\rho$ parameter at 13 TeV.