Enhanced production of charged over neutral kaons in Ar+Sc collisions measured by NA61/SHINE at CERN SPS
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Shared by Gary on Nov 3, 2025 • 08:16 AM UTC
NobleBlocks IDNB9913032A
Authors:
TomaszMatulewicz1,∗for the NA61/SHINE Collaboration
Abstract
The isospin symmetry, originating from similar masses ofuandd quarks, if exact would result in equal numbers of charged (K+andK−) and neutral (K0andK0) mesons produced in collisions of isospin-symmetric atomic nuclei. The charged and neutralK meson production in Ar+Sc collisions at a center-of-mass ...
Highlights
-The production of chargedKmesons at mid-rapidity is (18.4±6.1)% higher than that of the neutralKmesons.
-The models of hadron production, including known isospin-symmetry breaking effects, cannot explain the measurements.
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