The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c

The four-body reaction K/sup +/p to K/sup +/ pi /sup -/ Delta /sup ++/ is analysed in a sample of 77300 bubble chamber events of K/sup +/p to K/sup +/ pi /sup -/ pi /sup +/p for beam momenta from 2.5 to 12.6 GeV /c to study the K/sup +/ pi /sup -/ elastic scattering cross section. The relative merit...

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Detalles Bibliográficos
Autor principal: Linglin, D
Lenguaje:eng
Publicado: 1973
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(73)90387-8
http://cds.cern.ch/record/880732
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author Linglin, D
author_facet Linglin, D
author_sort Linglin, D
collection CERN
description The four-body reaction K/sup +/p to K/sup +/ pi /sup -/ Delta /sup ++/ is analysed in a sample of 77300 bubble chamber events of K/sup +/p to K/sup +/ pi /sup -/ pi /sup +/p for beam momenta from 2.5 to 12.6 GeV /c to study the K/sup +/ pi /sup -/ elastic scattering cross section. The relative merits of several analytic continuations to the pion pole are discussed. Maximum likelihood method is used and, for each experiment, fits are performed simultaneously over the whole range of the M(p pi /sup +/), m(K/sup +/ pi /sup -/) and t variables. The K/sup +/ pi /sup -/ cross section is parametrized in terms of the down solution for the s-wave, a p-wave resonating at the K*(890) and a d- wave resonating at the K*(1420). Fitted values are obtained for the four-body cross section, the s-wave contribution to the K/sup +/ pi /sup -/ cross section, and the masses and widths of the K*(890) and K* (1420). (13 refs).
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language eng
publishDate 1973
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spelling cern-8807322019-09-30T06:29:59Zdoi:10.1016/0550-3213(73)90387-8http://cds.cern.ch/record/880732engLinglin, DThe K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/cParticle Physics - PhenomenologyThe four-body reaction K/sup +/p to K/sup +/ pi /sup -/ Delta /sup ++/ is analysed in a sample of 77300 bubble chamber events of K/sup +/p to K/sup +/ pi /sup -/ pi /sup +/p for beam momenta from 2.5 to 12.6 GeV /c to study the K/sup +/ pi /sup -/ elastic scattering cross section. The relative merits of several analytic continuations to the pion pole are discussed. Maximum likelihood method is used and, for each experiment, fits are performed simultaneously over the whole range of the M(p pi /sup +/), m(K/sup +/ pi /sup -/) and t variables. The K/sup +/ pi /sup -/ cross section is parametrized in terms of the down solution for the s-wave, a p-wave resonating at the K*(890) and a d- wave resonating at the K*(1420). Fitted values are obtained for the four-body cross section, the s-wave contribution to the K/sup +/ pi /sup -/ cross section, and the masses and widths of the K*(890) and K* (1420). (13 refs).oai:cds.cern.ch:8807321973
spellingShingle Particle Physics - Phenomenology
Linglin, D
The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title_full The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title_fullStr The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title_full_unstemmed The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title_short The K$^{+}\pi^{-}$ elastic scattering cross section as observed in K$^{+}p\rightarrow $ K$^{+}\pi^{-}\Delta^{++}$ from 3 to 13 GeV/c
title_sort k$^{+}\pi^{-}$ elastic scattering cross section as observed in k$^{+}p\rightarrow $ k$^{+}\pi^{-}\delta^{++}$ from 3 to 13 gev/c
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(73)90387-8
http://cds.cern.ch/record/880732
work_keys_str_mv AT linglind thekpielasticscatteringcrosssectionasobservedinkprightarrowkpideltafrom3to13gevc
AT linglind kpielasticscatteringcrosssectionasobservedinkprightarrowkpideltafrom3to13gevc

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