RT Journal Article
T1 Hartree-Fock all-heavy c, b multiquarks and constraints on new top-sector physics
A1 Alonso Valero, Alejandro
A1 Berzal Rozalén, Daniel
A1 Llanes Estrada, Felipe José
A1 Pardo, Mario Camilo
A1 Peset Martín, Clara María
AB We deploy the Hartree-Fock approximation for all-heavy quark hadrons, including quarkonium, baryons, tetraquarks, pentaquarks, dibaryons and up to the 12-body dibaryon-antidibaryon which completely fill the 1s orbital, in a unified manner, with the spinless LO Coulomb interaction and beyond. After treating the c and b quarks in various combinations, we delve a bit longer on t-quark bound states. We extend the negative result of Kuchiev, Flambaum and Shuryak on the 12-body topball to now include the NLO QCD potential. We find that none of the examined multitop states should have binding energy exceeding their width in the Standard Model. Additional new-physics interactions can then be constrained by experimental searches for these bound states, assuming they are not detected, at a level somewhat less stringent than standing HEFT bounds, but with different systematics.
PB Springer Nature
YR 2025
FD 2025-09-11
LK https://hdl.handle.net/20.500.14352/124411
UL https://hdl.handle.net/20.500.14352/124411
LA eng
NO Alonso-Valero, A., Berzal-Rozalén, D., Llanes-Estrada, F.J. et al. Hartree-Fock all-heavy c, b multiquarks and constraints on new top-sector physics. J. High Energ. Phys. 2025, 97 (2025). https://doi.org/10.1007/JHEP09(2025)097
NO PRX23/00225FPU21/04180
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Ministerio de Universidades (España)
DS Docta Complutense
RD 19 dic 2025