Odderon exchange from elastic scattering differences between pp and p p ¯ data at 1.96 TeV and from pp forward scattering measurements

0548818 - FZÚ 2023 RIV US eng J - Journal Article
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kašpar, Jan - Kundrát, Vojtěch - Kupčo, Alexander - Lokajíček, Miloš - Lokajíček, Miloš V. - Procházka, Jiří … Total 477 authors
Odderon exchange from elastic scattering differences between pp and p p ¯ data at 1.96 TeV and from pp forward scattering measurements.
Physical Review Letters. Roč. 127, č. 6 (2021), č. článku 062003. ISSN 0031-9007. E-ISSN 1079-7114
Research Infrastructure: Fermilab-CZ II - 90113
Institutional support: RVO:68378271
Keywords : TOTEM * CERN LHC Coll * Batavia Tevatron Coll * DZERO
OECD category: Particles and field physics
Impact factor: 9.185, year: 2021
Method of publishing: Open access

We describe an analysis comparing the pp¯ elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in pp collisions as measured by the TOTEM Collaboration at 2.76, 7, 8, and 13 TeV using a model-independent approach. The TOTEM cross sections, extrapolated to a center-of-mass energy of s=1.96  TeV, are compared with the D0 measurement in the region of the diffractive minimum and the second maximum of the pp cross section. The two data sets disagree at the 3.4σ level and thus provide evidence for the t-channel exchange of a colorless, C-odd gluonic compound, also known as the odderon. We combine these results with a TOTEM analysis of the same C-odd exchange based on the total cross section and the ratio of the real to imaginary parts of the forward elastic strong interaction scattering amplitude in pp scattering for which the significance is between 3.4σ and 4.6σ.
Permanent Link: http://hdl.handle.net/11104/0324866