363923 20260126232157.0 10.17182/HEPDATA.166318.V1 doi GSI-2026-00126 English ALICE Collaboration P:(DE-HGF)0 0 Corresponding author Exclusive four pion photoproduction in ultraperipheral Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV 2025 MISC BibTeX Dataset dataset dataset PUB:(DE-HGF)32 1769422299_429476 PUB:(DE-HGF) Chart or Table 26 EndNote Dataset DataCite DATA_SET ORCID ResearchData DINI GSI-2026-00125 The intense photon fluxes from relativistic nuclei provide an opportunity to study photonuclear interactions in ultraperipheral collisions. The measurement of coherently photoproduced \fourpi~final states in ultraperipheral $\rm{Pb\textendash Pb}$ collisions at \fivenn~is presented for the first time. The cross section, d$\sigma$/d$y$, times the branching ratio ($\rho\rightarrow \pi^+ \pi^+ \pi^- \pi^-$) is found to be $47.8\pm2.3~\rm{\rm{(stat.)}}\pm7.7~\rm{\rm{(syst.)}}$~mb in the rapidity interval $|y| 612 - Cosmic Matter in the Laboratory (POF4-612) G:(DE-HGF)POF4-612 POF4-612 POF IV 0 HGS-HIRe - HGS-HIRe for FAIR (HGS-HIRe) G:(DE-Ds200)HGS-HIRe HGS-HIRe 1 SUC-GSI-Heidelberg - Strategic university cooperation GSI-U Heidelberg (SUC-GSI-HE) G:(DE-Ds200)SUC-GSI-HE SUC-GSI-HE 2 SUC-GSI-Frankfurt - Strategic university cooperation GSI-U Frankfurt/M (SUC-GSI-FR) G:(DE-Ds200)SUC-GSI-FR SUC-GSI-FR 3 SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU Darmstadt (SUC-GSI-DA) G:(DE-Ds200)SUC-GSI-DA SUC-GSI-DA 4 STRONG-2020 - The strong interaction at the frontier of knowledge: fundamental research and applications (824093) G:(EU-Grant)824093 824093 H2020-INFRAIA-2018-1 5 Dataset connected to DataCite LHC LHC: ALICE EXP:(DE-588)4398783-7 EXP:(DE-H253)LHC-Exp-ALICE-20150101 EXP:(DE-H253)LHC-Exp-ALICE-20150101 0 10.17182/HEPDATA.166318.V1 oai:repository.gsi.de:363923 openaire VDB ec_fundedresources DE-HGF Forschungsbereich Materie Matter and the Universe G:(DE-HGF)POF4-610 G:(DE-HGF)POF4-612 G:(DE-HGF)POF4 G:(DE-HGF)POF4-600 G:(DE-HGF)POF Cosmic Matter in the Laboratory 0 2025 yes I:(DE-Ds200)ALI-20080822OR105 ALI ALICE 0 I:(DE-Ds200)DTL-20051214OR031 DTL Detektorlabor 1 I:(DE-Ds200)CIT-20110310OR121 CIT IT 2 I:(DE-Ds200)EXM-20080818OR100 EXM ExtreMe Matter Institute, EMMI 3 I:(DE-Ds200)Coll-CERN-ALICE ALICE@CERN Collaboration CERN: ALICE 4 dataset VDB I:(DE-Ds200)ALI-20080822OR105 I:(DE-Ds200)DTL-20051214OR031 I:(DE-Ds200)CIT-20110310OR121 I:(DE-Ds200)EXM-20080818OR100 I:(DE-Ds200)Coll-CERN-ALICE UNRESTRICTED