Regular Article - Theoretical Physics
Hyperfine splitting effects in string hadronization
Theoretical Particle Physics, Department of Astronomy and Theoretical Physics, Lund University, Sölvegatan 14A, 223 62, Lund, Sweden
Accepted: 26 February 2022
Published online: 15 March 2022
We revisit the recipe for hadron formation in the Lund string hadronization model. Given an incoming quark or quark-diquark pair, weights for hadron formation are updated to take hyperfine splitting effects arising from the mass difference between -type and -type quarks. We find that the procedure improves the description of hadron yields in collisions and the cross section in neutral current DIS. We also show results for proton collisions, and discuss the future use of this study in the context of small system collectivity.
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