TMD-like functions through the twisted quark states
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DOI: 10.1093/ptep/ptaf029
Abstract: We investigate a new class of transverse momentum dependent functions (TMDs), as known as align-spin (AS) functions. In the paper, we propose the most suitable proof of the AS-function existence together with the demonstration of… read more here.
Keywords: tmd like; twisted quark; like functions; physics ... See more keywords
Disentangling different structures in heavy-light four-quark states
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DOI: 10.1103/physrevd.102.051501
Abstract: Models proposed to explain recently discovered heavy-light four-quark states already assume certain internal structures, i.e., the (anti)quark constituents are grouped into diquark/antidiquark clusters, heavy-meson/light-meson clusters (hadrocharmonium) or heavy-light meson molecules. We propose and use an… read more here.
Keywords: quark states; four quark; meson; heavy light ... See more keywords
Hidden-flavor four-quark states in the charm and bottom region
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DOI: 10.1103/physrevd.109.074025
Abstract: We discuss the spectrum and the internal composition of ground and excited four-quark states in the charm and bottom energy region. To this end we extend previous calculations within the framework of the relativistic four-body… read more here.
Keywords: states charm; charm bottom; four quark; region ... See more keywords