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Determination of the Total Width of the η′ Meson
- Czerwinski, E. (author)
- Moskal, P. (author)
- Grzonka, D. (author)
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- Czyzykiewicz, R. (author)
- Gil, D. (author)
- Kamys, B. (author)
- Khoukaz, A. (author)
- Klaja, J. (author)
- Klaja, P. (author)
- Krzemien, W. (author)
- Oelert, W. (author)
- Ritman, J. (author)
- Sefzick, T. (author)
- Siemaszko, M. (author)
- Silarski, M. (author)
- Smyrski, J. (author)
- Täschner, A. (author)
- Wuestner, P. (author)
- Zdebik, J. (author)
- Zielinski, M. (author)
- Zipper, W. (author)
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- (creator_code:org_t)
- 2010
- 2010
- English.
- In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 105:12, s. 122001-
- Journal article (peer-reviewed)
Abstract
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- Taking advantage of both the low-emittance proton beam of the cooler synchrotron COSYand the high momentum precision of the COSY-11 detector system, the mass distribution of the eta' meson was measured with a resolution of 0: 33 MeV/c(2) (FWHM), improving the experimental mass resolution by almost an order of magnitude with respect to previous results. Based on the sample of more than 2300 reconstructed pp -> pp eta' events, the total width of the eta' meson was determined to be Gamma(eta') = 0.226 +/- 0: 017(stat) +/- 0: 014(syst) MeV/c(2).
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Physics
- Fysik
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- ref (subject category)
- art (subject category)
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- Czerwinski, E.
- Moskal, P.
- Grzonka, D.
- Czyzykiewicz, R.
- Gil, D.
- Kamys, B.
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- Khoukaz, A.
- Klaja, J.
- Klaja, P.
- Krzemien, W.
- Oelert, W.
- Ritman, J.
- Sefzick, T.
- Siemaszko, M.
- Silarski, M.
- Smyrski, J.
- Täschner, A.
- Wolke, Magnus
- Wuestner, P.
- Zdebik, J.
- Zielinski, M.
- Zipper, W.
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Uppsala University
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