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Author
LHCb Collaboration (Aaij, R. et al)
;
Jaimes Elles, S.J.
;
Jashal, B.K.
;
Martinez-Vidal, F.
;
Oyanguren, A.
;
Rebollo De Miguel, M.
;
Remon Alepuz, C.
;
Ruiz Vidal, J.
;
Sanderswood, I.
Title
Amplitude analysis of the D+s → π-π+π+ decay
Type
Journal Article
Year
2023
Publication
Journal of High Energy Physics
Abbreviated Journal
J. High Energy Phys.
Volume
07
Issue
7
Pages
204 - 35pp
Keywords
Charm Physics
;
Hadron-Hadron Scattering
;
Particle and Resonance Production
Abstract
A Dalitz plot analysis of the D-s(+) -> pi(-)pi(+)pi(+) decay is presented. The analysis is based on proton-proton collision data recorded by the LHCb experiment at a centre-of-mass energy of 8TeV and corresponding to an integrated luminosity of 1.5 fb(-1). The resonant structure of the decay is obtained using a quasi-model-independent partial-wave analysis, in which the pi(+)pi(-) S-wave amplitude is parameterised as a generic complex function determined by a fit to the data. The S-wave component is found to be dominant, followed by the contribution from spin-2 resonances and a small contribution from spin-1 resonances. The latter includes the first observation of the D-s(+) -> omega(782)pi(+) channel in the D-s(+) -> pi(-)pi(+)pi(+) decay. The resonant structures of the D-s(+) -> pi(-)pi(+)pi(+) and D+ -> pi(-)pi(+)pi(+) decays are compared, providing information about the mechanisms for the hadron formation in these decays.
Address
[Baptista de Souza Leite, J.; Bediaga, I. B.; Cruz Torres, M.; De Freitas Carneiro Da Graca, U.; De Miranda, J. M.; dos Reis, A. C.; Falcao, L. N.; Gomes, A.; Massafferri, A.; Torres Machado, D.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil, Email: juan.baptista.leite@cern.ch
Corporate Author
Thesis
Publisher
Springer
Place of Publication
Editor
Language
English
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
1029-8479
ISBN
Medium
Area
Expedition
Conference
Notes
WOS:001061827700001
Approved
no
Is ISI
yes
International Collaboration
yes
Call Number
IFIC @ pastor @
Serial
5739
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