Central exclusive diffractive production of two-pion continuum at hadron colliders

Abstract

Calculations of the central exclusive diffractive di-pion continuum production are presented in the Regge-eikonal approach. Data from ISR, STAR, CDF and CMS were analysed and compared with theoretical description. We also consider theoretical predictions for LHC, possible nuances and problems of calculations and prospects of investigations at present and future hadron colliders.PACS 11.55.Jy Regge formalism · 12.40.Nn Regge theory, duality, absorptive/optical models · 13.85.Ni Inclusive production with identified hadrons · 13.85.Lg Total cross sections arXiv:1910.06683v1 [hep-ph]

Searching for the odderon in pp→ppK+K− and pp→pLebiedowicz1, Nachtmann2, Szczurek3 2020Phys. Rev. D180260View full textAdd to dashboardCite

“…We find a suppression factor of the cross section of hS 2 i ≃ 0.3; see Table II. A similar value of suppression was found in [85] (see Fig. 14 there) for the exclusive pp → ppπ þ π − reaction for the diffractive continuum process at the LHC energy.…”

“…From Fig. 14 of [85] we see that the survival factor (only the pp rescattering corrections) is about hS 2 i ¼ 0.2.…”

“…The survival factor for the soft exclusive process pp → ppπ þ π − via the Pomeron-Pomeron fusion for ffiffi ffi s p ¼ 7 TeV was calculated also in [85]. From Fig.…”

Extracting the Pomeron-Pomeron- f2(1270) coupling in the pp→ppπ+

“…[6,7]. Also other effects, such as the rescattering corrections discussed in [31][32][33], can be very important there.…”

“…3.3 of [6]. Other rescattering corrections, such as possible pion-proton [31,32] and pion-pion [33] interactions in the final state, and also so-called "enhanced" corrections [34], are neglected in the present calculations. In practice we work with the amplitudes in the high-energy approximation; see Eqs.…”