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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..
Vise andre og tillknytning
2017 (engelsk)Inngår i: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, nr 7, artikkel-id 072010Artikkel i tidsskrift (Fagfellevurdert) 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%.

sted, utgiver, år, opplag, sider
2017. Vol. 95, nr 7, artikkel-id 072010
Emneord [en]
Helicity-coupling amplitudes, Tensor formalism, Mesons, Decays
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-322816DOI: 10.1103/PhysRevD.95.072010ISI: 000399946100003OAI: oai:DiVA.org:uu-322816DiVA, id: diva2:1140916
Merknad

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

Tilgjengelig fra: 2017-09-13 Laget: 2017-09-13 Sist oppdatert: 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

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