Exclusive production of π+ π- pairs in diffractive γp and in pp collisions within the tensor-pomeron approach
Abstract
We discuss exclusive production of π+ π- pairs in diffractive γp and in pp collisions at high energies, considering resonant (ρ(770), ω, f2(1270)) and non-resonant (Drell-Söding) contributions within the tensor-pomeron approach. For the γp → π+ π- p reaction, the model describes well the H1 data in the region Mππ ≲ 1.2 GeV. We discuss the important role of the Drell-Söding mechanism in shaping the resonance line. We also predict differential cross sections for the pp → pp π+ π- reaction at √s = 13 TeV where at least one proton emits a virtual photon. These findings are relevant for the central exclusive production of π+ π- pairs in the context of ALICE, ATLAS, CMS, and LHCb measurements in hadron-hadron collisions at the LHC, especially under experimental selections using only rapidity-gap conditions. Additionally, our results are also applicable to π+ π- production in ultraperipheral pA/AA collisions at the LHC and to photo- and electroproduction of π+ π- at future electron-proton/ion colliders (EIC, LHeC).
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BibTeX
@misc{lebiedowicz2026exclusive,
title = {{Exclusive production of $π^+ π^-$ pairs in diffractive $γp$ and in $pp$ collisions within the tensor-pomeron approach}},
author = {Piotr Lebiedowicz and Otto Nachtmann and Antoni Szczurek},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.39520},
eprint = {2609.39520},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.39520},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Exclusive production of π^+ π^- pairs in diffractive γp and in pp collisions within the tensor-pomeron approach
AU - Piotr Lebiedowicz
AU - Otto Nachtmann
AU - Antoni Szczurek
PY - 2026
DA - 2026/09/30
PB - arXiv
DO - 10.48550/arxiv.2609.39520
UR - https://arxiv.org/abs/2609.39520
AB - We discuss exclusive production of π^+ π^- pairs in diffractive γp and in pp collisions at high energies, considering resonant (ρ(770), ω, f_2(1270)) and non-resonant (Drell-Söding) contributions within the tensor-pomeron approach. For the γp → π^+ π^- p reaction, the model describes well the H1 data in the region M_ππ ≲ 1.2 GeV. We discuss the important role of the Drell-Söding mechanism in shaping the resonance line. We also predict differential cross sections for the pp → pp π^+ π^- reaction at √s = 13 TeV where at least one proton emits a virtual photon. These findings are relevant for the central exclusive production of π^+ π^- pairs in the context of ALICE, ATLAS, CMS, and LHCb measurements in hadron-hadron collisions at the LHC, especially under experimental selections using only rapidity-gap conditions. Additionally, our results are also applicable to π^+ π^- production in ultraperipheral pA/AA collisions at the LHC and to photo- and electroproduction of π^+ π^- at future electron-proton/ion colliders (EIC, LHeC).
ER -