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Author  |
Albaladejo, M.; Canoa, A.; Nieves, J.; Pelaez, J.R.; Ruiz Arriola, E.; Ruiz de Elvira, J. |
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Title |
The role of chiral symmetry and the non-ordinary κ/K*0(700) nature in π±KS femtoscopic correlations |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physics Letters B |
Abbreviated Journal |
Phys. Lett. B |
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Volume |
866 |
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Pages |
139552 - 5pp |
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Abstract |
We show that the use of realistic pi K interactions, obtained from a dispersive analysis of scattering data, as well as relativistic corrections, are essential to describe recently observed pi +/- KS femtoscopic correlations. We demonstrate that the spontaneous chiral symmetry breaking dynamics and the non-ordinary features of the kappa/K0*(700)resonance, together with large cancellations between isospin channels, produce a large suppression of pi +/- KS femtoscopic correlations compared to widely used models. Within an improved version of the standard on-shell factorization formalism, we illustrate that compensating for this interaction suppression leads to source radii smaller than 1 fm, contrary to usual expectations, as well as larger correlation strengths. The relation between these two parameters cannot be accommodated within naive models describing the nature of the resonances. This may raise concerns about the applicability of popular but too simple approaches for systems with light mesons. However, the correlation-suppression effects we demonstrate here will be relevant in any formalism, and substantial corrections may be expected for other femtoscopic systems involving light mesons. |
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Address |
[Albaladejo, M.; Nieves, J.] UV, Inst Fis Corpuscular, Inst Invest Paterna, Ctr Mixto CSIC, Apartado 22085, Valencia 46071, Spain, Email: jacobore@ucm.es |
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Publisher |
Elsevier |
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Language |
English |
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Original Title |
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Edition |
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ISSN |
0370-2693 |
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Notes |
WOS:001497532100002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
6686 |
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