Observation Of The Decay J Psi Changes Into Eta C Changes Into Eta Phi Phi And Spin Parity Assignment For The Eta C

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Observation Of The Decay J Psi Changes Into Eta C Changes Into Eta Phi Phi And Spin Parity Assignment For The Eta C

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Author : Francesco Grancagnolo
language : en
Publisher:
Release Date : 1983

Observation Of The Decay J Psi Changes Into Eta C Changes Into Eta Phi Phi And Spin Parity Assignment For The Eta C written by Francesco Grancagnolo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Decay schemes (Radioactivity) categories.

Inis Atomindex

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Author :
language : en
Publisher:
Release Date : 1985

Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Nuclear energy categories.

Government Reports Announcements Index

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Author :
language : en
Publisher:
Release Date : 1986-08

Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986-08 with Science categories.

J Psi Results From Mark Iii

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Author :
language : en
Publisher:
Release Date : 1988

J Psi Results From Mark Iii written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Measurements of the two body decays of the J/[psi] into vector and pseudoscalar meson pairs are presented. Using the measured branching ratios, a phenomenological model of J//psi/ decays indicates that the [eta] and [eta]' are composed only of light and strange quarks, without a gluonium contribution in the [eta]' wavefunction. A measurement of J//psi/ .-->. .gamma pi./sup +/.pi./sup -/.pi./sup +/.pi./sup -/ is presented. The f1 (1285) is observed and its spin and parity are investigated. The /eta//sub c/ is observed to decay to /rho/°/rho/°, and first indications of /eta//sub c/ decays to f2f2 are presented. The spin and parity of the /eta//sub c/ are investigated. 5 figs., 3 figs., 1 tab.

Observation Of Eta C And Other Structures In The Radiative Decay Psi To Gamma Eta Pi Plus Pi Minus

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Author : Jeffrey Jay Becker
language : en
Publisher:
Release Date : 1984

Observation Of Eta C And Other Structures In The Radiative Decay Psi To Gamma Eta Pi Plus Pi Minus written by Jeffrey Jay Becker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.

Observation Of The Radiative Decay J

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Author :
language : en
Publisher:
Release Date : 1987

Observation Of The Radiative Decay J written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

The MARK III Collaboration has studied the OZI violating radiative decay J/psi .-->. .gamma. phi .omega., in order to complete the set of measured J/psi .-->. .gamma. vector vector decays. This channel is then used to search for a new decay mode of the xi(2330) and to study the eta/sub c/ decay mechanism. The phi .omega. mass spectrum does not show any significant structure; upper limits for the excitation of the xi and eta/sub c/ particles are obtained. 11 refs., 3 figs.

Observation Of The Eta Sub C 2980 Produced In The Radiative Decay Of The Psi 3684

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Author :
language : en
Publisher:
Release Date : 1980

Observation Of The Eta Sub C 2980 Produced In The Radiative Decay Of The Psi 3684 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.

In a study of [psi]'(3684) radiative decays with the Mark II detector at SPEAR, we observe the decay sequence [psi]' 2![gamma][eta]{sub c}(2980), with the [eta]{sub c}(2980) decaying into several completely reconstructed hadronic modes. We obtain a mass M = 2980 ± 8 MeV / c2 and a width [Gamma]

Observation Of The Decay B Jpsi Eta K And Search For The X 3872 Jpsi Eta

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Author :
language : en
Publisher:
Release Date : 2004

Observation Of The Decay B Jpsi Eta K And Search For The X 3872 Jpsi Eta written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors report the observation of the B meson decay B[sup [+-]] [yields] J/[psi][eta]K[sup [+-]] and evidence for the decay B[sup 0] [yields] J/[psi][eta]K[sub S][sup 0], using 90 million B[bar B] events collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II e[sup +]e[sup -] asymmetric-energy storage ring. They obtain branching fractions of [Beta](B[sup [+-]] [yields] J/[psi][eta]K[sup [+-]]) = (10.8 [+-] 2.3(stat.) [+-] 2.4(syst.)) x 10[sup -5] and [Beta](B[sup 0] [yields] J/[psi][eta]K[sub S][sup 0]) = (8.4 [+-] 2.6(stat.) [+-] 2.7(syst.)) x 10[sup -5]. They search for the new narrow mass state, the X(3872), recently reported by the Belle Collaboration, in the decay B[sup [+-]] [yields] X(3872)K[sup [+-]], X(3872) [yields] J/[psi][eta] and determine an upper limit of [Beta](B[sup [+-]] [yields] X(3872)K[sup [+-]]) [yields] (J/[psi][eta]K[sup [+-]])

Experimental Results On The Decay Sequences Psi Prime 3685 Into Cpcharm Chi Into Cc Jpsi C C K K And The Decays Psi Prime Into Eta Jpsi 9 Jpsi

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Author : DASP Collaboration
language : en
Publisher:
Release Date : 1979

Experimental Results On The Decay Sequences Psi Prime 3685 Into Cpcharm Chi Into Cc Jpsi C C K K And The Decays Psi Prime Into Eta Jpsi 9 Jpsi written by DASP Collaboration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.

Radiative Decays Of The Psi Prime To All Photon Final States

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Author :
language : en
Publisher:
Release Date : 1985

Radiative Decays Of The Psi Prime To All Photon Final States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.

Results of studies of selected radiative decays of the psi' to charmonium and non-charmonium states which decay into photons are presented. These studies were performed using a sample of 1.8 x 106 produced psi''s collected by the Crystal Ball detector at the SPEAR electron-positron storage ring. The branching ratios of the chi0, chi2, and eta'/sub c/ to two photons have been measured to be (4.5 +- 2.2 +- 2.0) x 10−4, (9.5 +- 2.9 +- 4.5) x 10−4 (first errors statistical, second systematic), and 1 x 10−2 (90% C.L.). The signal from the decay chain psi' .--. .gamma.chi0, chi0 .-->. .pi.°.pi.° has been observed with essentially no background. Using the observed line shape of the radiative photon in this reaction, the full width of the psi0 has been found to be 8.8 +- 1.3 +- 1.5 MeV/c2. In addition, the branching ratios of the chi0 and chi2 to .pi.°.pi.° have been measured to be (3.5 +- 0.3 +- 1.2) x 10−3 and (1.2 +- 0.2 +- 0.4) x 10−3; the branching ratios of the chi0 and chi2 to eta eta have been measured to be (2.8 +- 0.9 +- 1.3) x 10−3 and (8.4 +- 4.2 +- 4.0) x 10−4. The decays of the psi' to four non-charmonium states have been investigated. The branching ratios and upper limits of these decays have been normalized to the branching ratios of the corresponding decays from the J/psi which have been measured using a sample of 2.2 x 106 produced J/psi's collected by the Crystal Ball detector. The ratios of the psi' branching ratios to the J/psi branching ratios for the final states .gamma.eta, .gamma.eta', .gamma.theta, and .gamma.f have been measured to be