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Amplitude analysis of D0 -> K -π+π+π-
Inst High Energy Phys, Beijing 100049, Peoples R China..
GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia..
Helmholtz Inst Mainz, D-55099 Mainz, Germany..
Inst High Energy Phys, Beijing 100049, Peoples R China..
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2017 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, no 7, article id 072010Article in journal (Refereed) Published
Abstract [en]

We present an amplitude analysis of the decay D-0 -> K- pi(+)pi(+)pi(-) based on a data sample of 2.93 fb(-1) acquired by the BESIII detector at the psi(3770) resonance. With a nearly background free sample of about 16000 events, we investigate the substructure of the decay and determine the relative fractions and the phases among the different intermediate processes. Our amplitude model includes the two-body decays D-0 -> (K) over bar*(0)rho(0), D-0 -> K- a(1)(+) (1260) and D-0 -> K-1(-)(1270)pi(+), the three-body decays D-0 -> K-1(-)*(0)pi(+)pi(-) and D-0 -> K- pi(+)rho(0), as well as the four-body nonresonant decay D-0 -> K- pi(+)pi(+)pi(-). The dominant intermediate process is D-0 -> K(-)a(1)(+)(1260)accounting for a fit fraction of 54.6%.

Place, publisher, year, edition, pages
2017. Vol. 95, no 7, article id 072010
Keywords [en]
Helicity-coupling amplitudes, Tensor formalism, Mesons, Decays
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-322816DOI: 10.1103/PhysRevD.95.072010ISI: 000399946100003OAI: oai:DiVA.org:uu-322816DiVA, id: diva2:1140916
Note

title in WoS: Amplitude analysis of D-0 -> K- pi(+) pi(+) pi(-)

Available from: 2017-09-13 Created: 2017-09-13 Last updated: 2018-01-11

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Johansson, TKupsc, AndrzejLi, CuiPettersson, JeanSchönning, KarinWolke, Magnus

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Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomic Physics

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