Signatures of the two K1(1270) poles in D+ → νe+V P decay

Wang, Guan-Ying; Roca Zamora, Luis; Wang, En; Liang, Wei-Hong; Oset, Eulogio

Publication:
Signatures of the two K1(1270) poles in D+ → νe+V P decay

dc.contributor.author	Wang, Guan-Ying
dc.contributor.author	Roca Zamora, Luis
dc.contributor.author	Wang, En
dc.contributor.author	Liang, Wei-Hong
dc.contributor.author	Oset, Eulogio
dc.contributor.department	Física
dc.date.accessioned	2025-01-09T15:37:55Z
dc.date.available	2025-01-09T15:37:55Z
dc.date.created	2020-05-08
dc.description	© The Author(s) 2020. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in The European Physical Journal C. To access the final edited and published work see https://doi.org/10.1140/epjc/s10052-020-7939-1	es
dc.description.abstract	We analyze theoretically the D+ → νe+ρK¯ and D+ → νe+K¯ ∗π decays to see the feasibility to check the double pole nature of the axial-vector resonance K1(1270) predicted by the unitary extensions of chiral perturbation theory (UChPT). Indeed, within UChPT the K1(1270) is dynamically generated from the interaction of a vector and a pseudoscalar meson, and two poles are obtained for the quantum numbers of this resonance. The lower mass pole couples dominantly to K∗π and the higher mass pole to ρK, therefore we can expect that different reactions weighing differently these channels in the production mechanisms enhance one or the other pole. We show that the different final V P channels in D+ → νe+V P weigh differently both poles, and this is reflected in the shape of the final vector-pseudoscalar invariant mass distributions. Therefore, we conclude that these decays are suitable to distinguish experimentally the predicted double pole of the K1(1270) resonance.
dc.format	application/pdf	es
dc.format.extent	7
dc.identifier.citation	Eur. Phys. J. C (2020) 80:388
dc.identifier.doi	https://doi.org/10.1140/epjc/s10052-020-7939-1
dc.identifier.issn	Print: 1434-6044
dc.identifier.issn	Electronic: 1434-6052
dc.identifier.uri	http://hdl.handle.net/10201/148097
dc.language	eng	es
dc.publisher	SpringerOpen, EDP Sciences, Società Italiana di Fisica
dc.relation	This work is partly supported by the National Natural Science Foundation of China under Grant Nos.11505158, 11847217, 11975083 and 11947413. It is also supported by the Academic Improvement Project of Zhengzhou University. This work is partly supported by the Spanish Ministerio de Economia y Competitividad and European FEDER funds under Contracts No. FIS2017-84038-C2-1-P B and No. FIS2017-84038-C2-2-P B. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824093 for the STRONG-2020 project.	es
dc.relation.publisherversion	https://link.springer.com/article/10.1140/epjc/s10052-020-7939-1
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Atribución 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.title	Signatures of the two K1(1270) poles in D+ → νe+V P decay	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es