Interference Measurement of the Xc0(1P) in Proton-antiproton Annihilation Into Two Neutral Pseudoscalar Mesons PDF Download
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Author: Paolo Giuseppe Rumerio
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Languages : en
Pages :
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Author: Paolo Giuseppe Rumerio
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Paolo Giuseppe Rumerio
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Fermilab experiment E835 has observed p¯p annihilation production of the charmonium state chic 0 and its subsequent decay into pi0pi0. Although the resonant amplitude is an order of magnitude smaller than that of the non-resonant continuum production of pi0pi 0, an enhanced interference signal is evident. A partial wave expansion is used to extract physics parameters. The amplitudes J = 0 and 2, of comparable strength, dominate the expansion. Both are accessed by L = 1 in the entrance p¯p channel. The product of the input and output branching fractions is determined to be B(p¯p → chic 0) x B(chic 0 → pi0pi0) = (5.09 +/- 0.81 +/- 0.25) x 10-7. An interference signal is also measured in the etaeta channels and provides B( p¯p → chic0) x B(chic0 → etaeta) = (4.0 +/- 1.2+0.5-0.3 ) x 10-7. The control channel pi 0eta, into which the chic0 decay is suppressed by isospin conservation, is analyzed and a 90% confidence level upper limit, B(chic 0 → p¯p) x B(chi c0 → pi0eta)
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Category :
Languages : en
Pages : 110
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Author: Matthias Heinzelmann
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Languages : en
Pages : 110
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Author: Alan Wayne Brush
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Category :
Languages : en
Pages : 246
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Author: Bruno O. El-Bennich
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Category :
Languages : en
Pages : 266
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Author: Peppino B. Giarritta
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Category :
Languages : en
Pages : 112
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![Search for New Mesons in Proton-antiproton Annihilation Into [omega][pi]0[pi]0 and [omega][eta][pi]0 PDF](https://books.google.com/books/content/images/frontcover/WQ_iXwAACAAJ?fife=w80-h100)
Author: Peppino B. Giarritta
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Category :
Languages : en
Pages : 112
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