Comparison of $pp$ and $p\bar{p}$ differential elastic cross sections and observation of colourless C-odd gluonic exchanges
英文摘要:
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 3.4$σ$ significance is observed between the extrapolated pp elastic cross section and the D0 p$\bar{\rm p}$ 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 5$σ$ and is interpreted as the first observation of odderon exchange.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。