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@ARTICLE{BaezaBallesteros:625326,
      author       = {Baeza Ballesteros, Jorge and Hernández, Pilar and
                      Romero-López, Fernando},
      title        = {{R}esults on meson-meson scattering at large
                      ${N}_\mathrm{c}$},
      reportid     = {PUBDB-2025-01100, arXiv:2501.19115. DESY-25-018.
                      MIT-CTP/5834},
      year         = {2025},
      note         = {11 pages, 5 figures. Talk presented at the 41st
                      International Symposium on Lattice Field Theory
                      (Lattice2024), 28 July - 3 August 2024, Liverpool, UK},
      abstract     = {We present results on the large $N_\text{c}$ scaling of
                      meson-meson scattering amplitudes. We work in a theory with
                      $N_\text{f}=4$ degenerate quark flavors and run lattice
                      simulations with $N_\text{c}=3-6$ and pion mass
                      $M_\pi\approx 590$ MeV. We focus on three different
                      scattering channels, two of which have the same quantum
                      numbers as some tetraquark candidates recently found at
                      LHCb. Finite-volume energies are extracted using a large set
                      of operators, containing two-particle operators
                      corresponding to two pions or two vector mesons, and local
                      tetraquark operators. Using Lüscher's quantization
                      condition, we constrain the infinite-volume scattering
                      amplitudes and investigate subleading $N_\text{c}$
                      corrections to the large $N_\text{c}$ limit. For one of the
                      channels, we find indications of a virtual bound state at
                      $N_\text{c}=3$, which may be related to one of the
                      aforementioned exotic states.},
      cin          = {$Z_ZPPT$},
      ddc          = {530},
      cid          = {$I:(DE-H253)Z_ZPPT-20210408$},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / HIDDeN
                      - Hunting Invisibles: Dark sectors, Dark matter and
                      Neutrinos (860881) / ASYMMETRY - Essential Asymmetries of
                      Nature (101086085) / DFG project G:(GEPRIS)247250619 -
                      2-Photonen Mikroskopie Plattform: Aufrechtes
                      2-Photonenmikroskop inkl. Laserpaket (247250619)},
      pid          = {G:(DE-HGF)POF4-611 / G:(EU-Grant)860881 /
                      G:(EU-Grant)101086085 / G:(GEPRIS)247250619},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2501.19115},
      howpublished = {arXiv:2501.19115},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2501.19115;\%\%$},
      doi          = {10.3204/PUBDB-2025-01100},
      url          = {https://bib-pubdb1.desy.de/record/625326},
}