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Odderon Exchange from Elastic Scattering Differences between pp and pp$^{-}$ Data at 1.96 TeV and from pp Forward Scattering Measurements

Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alves, G. A.; Antchev, G.; Askew, A.; Aspell, P.; Assis Jesus, A. C. S.; Atanassov, I.; Atkins, S.; Augsten, K.; Aushev, V.; Aushev, Y.; ... mehr


We describe an analysis comparing the p¯p 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 crosssections, 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 scatteringamplitude in pp scattering for which the significance is between 3.4σ and 4.6σ. The combined significance is larger than 5σ and is interpreted as the first observation of the exchange of a colorless, C-odd gluonic compound.

Verlagsausgabe §
DOI: 10.5445/IR/1000137033
Veröffentlicht am 12.09.2021
DOI: 10.1103/PhysRevLett.127.062003
Zitationen: 27
Web of Science
Zitationen: 24
Zitationen: 31
Cover der Publikation
Zugehörige Institution(en) am KIT Steinbuch Centre for Computing (SCC)
Universität Karlsruhe (TH) – Zentrale Einrichtungen (Zentrale Einrichtungen)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0031-9007, 1079-7114, 1092-0145
KITopen-ID: 1000137033
HGF-Programm 46.21.02 (POF IV, LK 01) Cross-Domain ATMLs and Research Groups
Erschienen in Physical Review Letters
Verlag American Physical Society (APS)
Band 127
Heft 6
Seiten Art.-Nr.: 062003
Nachgewiesen in Web of Science
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