https://doi.org/10.1140/epja/s10050-020-00318-2
Letter
Higgs modulation of emergent mass as revealed in kaon and pion parton distributions
1
School of Physics, Nanjing University, 210093, Nanjing, Jiangsu, China
2
Institute for Nonperturbative Physics, Nanjing University, 210093, Nanjing, Jiangsu, China
3
European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler Villa Tambosi, Strada delle Tabarelle 286, 38123, Villazzano, TN, Italy
4
Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120, Heidelberg, Germany
5
School of Physics, Nankai University, 300071, Tianjin, China
6
Department of Integrated Sciences and Center for Advanced Studies in Physics, Mathematics and Computation, University of Huelva, 21071, Huelva, Spain
7
Helmholtz-Zentrum Dresden-Rossendorf, 01314, Dresden, Germany
8
RWTH Aachen University, III. Physikalisches Institut B, 52074, Aachen, Germany
Received:
20
November
2020
Accepted:
22
November
2020
Published online:
2
January
2021
Strangeness was discovered roughly seventy years ago, lodged in a particle now known as the kaon, K. Kindred to the pion, ; both states are massless in the absence of Higgs-boson couplings. Kaons and pions are Nature’s most fundamental Nambu–Goldstone modes. Their properties are largely determined by the mechanisms responsible for emergent mass in the standard model, but modulations applied by the Higgs are crucial to Universe evolution. Despite their importance, little is known empirically about K and
structure. This study delivers the first parameter-free predictions for all K distribution functions (DFs) and comparisons with the analogous
distributions, i.e. the one-dimensional maps that reveal how the light-front momentum of these states is shared amongst the gluons and quarks from which they are formed. The results should stimulate improved analyses of existing data and motivate new experiments sensitive to all K and
DFs.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021