2021/09/13 by K. Österberg, Kenneth Österberg, Österberg, Kenneth
Physics and Astronomy · #Bar (unit) #Computer science #Cross section (physics) #Differential (mechanical device) #Elastic scattering #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scale (ratio) #Scattering #Scattering cross-section #Section (typography) #hep-ex #hep-ph
paper · pdf · open access · doi:10.48550/arxiv.2109.06271
published in Työväentutkimus Vuosikirja · Conference: Moriond QCD 2021
arxiv created 2021/09/13 · openalex publication_date 2021/09/13 · arxiv updated 2021/09/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
The TOTEM 2.76, 7, 8, and 13 TeV pp elastic differential cross sections are extrapolated using a data-driven approach to obtain the 1.96 TeV pp elastic cross section. A difference with a 3.4σ significance is observed between the extrapolated pp elastic cross section and the D0 p\rm p elastic cross section at 1.96 TeV in the region of the diffractive minimum and the second maximum of the pp cross section, providing evidence for colourless C-odd gluonic exchanges, also denoted as odderon. These results are combined with a TOTEM analysis of the same t-channel C-odd exchanges based on forward pp elastic scattering at TeV scale. The combined significance is larger than 5σ and is interpreted as the first observation of odderon exchange.