Semileptonic decays D→π+π−e+νe and Ds→π+π−e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons Full article
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Physical Review D: Particles and fields
ISSN: 2470-0010 , E-ISSN: 2470-0029 |
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| Output data | Year: 2020, Volume: 102, Number: 1, Pages: 016022 Pages count : 1 DOI: 10.1103/physrevd.102.016022 | ||||
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Abstract:
Decays D→π+π−e+νe and Ds→π+π−e+νe serve as probes that check the existence of constituent q¯q components in the wave functions of scalar mesons decaying into π+π−. There exists a great deal of concrete evidence in favor of the exotic four-quark nature of light scalars. At the same time, the further expansion of the area of the q2¯q2 model validity for light scalars on ever new processes seems extremely interesting and important. We analyze the BESIII and CLEO data on the decays D+→π+π−e+νe and D+s→π+π−e+νe and show that the results of these experiments together can be interpreted in favor of the four-quark nature of light scalar mesons σ(500) and f0(980). Our approach can also be applied to the description of other similar decays involving light scalars.
Cite:
Achasov N. .
, Kiselev A. .
, Shestakov G. .
Semileptonic decays D→π+π−e+νe and Ds→π+π−e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons
Physical Review D: Particles and fields. 2020. V.102. N1. P.016022. DOI: 10.1103/physrevd.102.016022 WOS Scopus OpenAlex
Semileptonic decays D→π+π−e+νe and Ds→π+π−e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons
Physical Review D: Particles and fields. 2020. V.102. N1. P.016022. DOI: 10.1103/physrevd.102.016022 WOS Scopus OpenAlex
Identifiers:
| Web of science: | WOS:000552900900007 |
| Scopus: | 2-s2.0-85092731158 |
| OpenAlex: | W3024895603 |