2026-06-28T09:45:15Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/888632025-08-28T15:54:11Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc González, Sebastián author Demazure, Noe author Llanes Estrada, Felipe José author 2023 We present a computational investigation of a problem of hadron collisions from recent years, that of baryon anticorrelations. This is an experimental dearth of baryons near other baryons in phase space, not seen upon examining numerical Monte Carlo simulations. We have addressed one of the best known Monte Carlo codes, PYTHIA, to see what baryon (anti)correlations it produces, where they are originated at the string-fragmentation level in the underlying Lund model, and what simple modifications could lead to better agreement with data. We propose two ad-hoc alterations of the fragmentation code, a "one-baryon" and an "always-baryon" policies that qualitatively reproduce the data behaviour, i.e anticorrelation, and suggest that lacking Pauli-principle induced corrections at the quark level could be the culprit behind the current disagreement between computations and experiment. N. Demazure, V. González Sebastián, and F. J. Llanes-Estrada, Few-Body Syst 64, 57 (2023). 0177-7963 10.1007/s00601-023-01838-5 https://hdl.handle.net/20.500.14352/88863 1432-5411 https://doi.org/10.1007/s00601-023-01838-5 https://link.springer.com/article/10.1007/s00601-023-01838-5 Baryon Anticorrelations in PYTHIA