Odderon Exchange from Elastic Scattering Differences between and Data at 1.96 TeV and from Forward Scattering Measurements
We describe an analysis comparing the $$p\bar{p}$$ 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 cross sections, extrapolated to a center-of-mass energy of $$\sqrt{s}$$ = 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 3.4 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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- D0 Collaboration; TOTEM Collaboration
- Grant/Contract Number:
- AC02-07CH11359; AC02-76SF00515
- OSTI ID:
- 1811950
- Alternate ID(s):
- OSTI ID: 1770974; OSTI ID: 1819453
- Report Number(s):
- FERMILAB-PUB-20-568-E; CERN-EP-2020-236; arXiv:2012.03981; PRLTAO; 062003
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 127 Journal Issue: 6; ISSN 0031-9007
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the inclusive production cross section in collisions at and determination of the top quark pole mass
Measurement of the production cross section in collisions at