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CERN Document Server 找到 23 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.64 秒. 
1.
A measurement of $\Lambda$ polarization in inclusive production by $\Sigma^-$ of 340-GeV/c in C and Cu targets / Adamovich, M I (LPI, Moscow (main)) ; Alexandrov, Yu A (LPI, Moscow (main)) ; Baranov, S P (LPI, Moscow (main)) ; Barberis, D (Genoa U. ; INFN, Genoa) ; Beck, M (Heidelberg, Max Planck Inst.) ; ́erat, C B (Grenoble, CEN) ; Beusch, W (CERN) ; Boss, M (Heidelberg U.) ; Brons, S (Heidelberg, Max Planck Inst.) ; Brückner, W (Heidelberg, Max Planck Inst.) et al. /WA89
We have measured the polarization of $\Lambda$ hyperons produced inclusively by a $\Sigma^-$ beam of 340 GeV/c momentum in nuclear targets. From a sample of 9.5 millions of identified $\Lambda$ decays, polarizations were determined in the range $x_F \gt 0.1$ and $p_t\leq 1.6$ GeV/c . [...]
2003 - 8 p. - Published in : Eur. Phys. J. C 32 (2004) 221-228
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2.
Observation of a resonance in the K$_s$p decay channel at a mass of 1765 MeV/c$^2$ / WA89 Collaboration
We report on the observation of a K$_s$p resonance signal at a mass of 1765$\pm$5 MeV/c$^2$, with intrinsic width $\Gamma = 108\pm 22$ MeV/c$^2$, produced inclusively in $\Sigma^-$-nucleus interactions at 340 GeV/c in the hyperon beam experiment WA89 at CERN. The signal was observed in the kinematic region $x_F>0.7$, in this region its production cross section rises approximately linearly with $(1-x_F)$, reaching $BR(X\to K_S p)\cdot d\sigma /dx_F = (5.2\pm 2.3) \mu b $ per nucleon at $x_F=0.8$. [...]
hep-ex/0702044.- 2007 - 5 p. - Published in : Eur. Phys. J. C 50 (2007) 535-538 Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0702044 PDF
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3.
Spectra and correlations of Λ and Λ̅ produced in 340-GeV/c Σ-+C and 260-GeV/c n+C interactions / Adamovich, M I (Moscow Lebedev Physics Institute) ; Walcher, C (Univ. Mainz) ; Wälder,G (Univ. Heidelberg) ; Werding, R (Max-Planck-Institut für Kernphysik, Heidelberg) ; Wittmann, E (Max-Planck-Institut für Kernphysik, Heidelberg) ; Zavertyaev, M V (Moscow Lebedev Physics Institute) ; Pochodzalla, J (Max-Planck-Institut für Kernphysik, Heidelberg) ; Potashnikova, I K (Max-Planck-Institut für Kernphysik, Heidelberg) ; Povh, B (Max-Planck-Institut für Kernphysik, Heidelberg) ; Ransome, R (Rutgers, Univ. New Jersey) et al.
2002 - Published in : Phys. Rev. C 65 (2002) 42202-42206 APS Published version, local copy: PDF;
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4.
A measurement of $\Xi^{-}$ polarization in inclusive production by $\Sigma^{-}$ of 340 GeV/c in C and Cu targets / WA89 Collaboration
We have measured the polarization of Xi /sup -/ hyperons produced inclusively by a Sigma /sup -/ beam of 340 GeV/c momentum in nuclear targets. From a sample of 880000 identified Xi /sup -/ decays, polarizations were determined in the range 0<x/sub F/<0.9 and p/sub t /<or=1.6 GeV/c. [...]
2004 - Published in : Eur. Phys. J. C 36 (2004) 315-321
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5.
Search for the pentaquark candidate $\Theta^+$(1540) in the hyperon beam experiment WA89 / WA89 Collaboration
We report on a high-statistics search for the \t1540 resonance in $\Sigma^-$-nucleus collisions at 340 \gevc1 . No evidence for this resonance was found in our data sample which contains 13 millions $K^0_s \to \pi^+\pi^- $ decays above background. [...]
hep-ex/0510013.- 2005 - 5 p. - Published in : Phys. Rev. C 72 (2005) 055201 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0510013 PDF
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6.
Search for the exotic $\Xi^{--}(1860)$ Resonance in 340GeV/c $\Sigma^-$-Nucleus Interactions / WA89 Collaboration
We report on a high statistics search for the $\Xi^{--}(1860)$ resonance in $\Sigma^-$-nucleus collisions at 340GeV/c. No evidence for this resonance is found in our data sample which contains 676000 $\Xi^-$ candidates above background. [...]
hep-ex/0405042.- Geneva : CERN, 2004 - 5 p. - Published in : Phys. Rev. C 70 (2004) 022201 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0405042 PDF
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7.
$V^{0}, \Xi$ and $\Omega^{-}$ inclusive production cross sections measured in hyperon experiment WA89 at CERN / WA89 Collaboration
We report on a measurement of the inclusive cross sections of Lambda , Lambda , K/sub S//sup 0/, Xi /sup +/and Omega /sup -/ production by Sigma /sup -/ and pi /sup -/ f 345 GeV/c momentum and by neutrons of 260 GeV/c mean momentum in copper and carbon. The differential cross sections as function of p/sub t//sup 2/ show a distinct non-gaussian behavior above 1.2 (GeV/c)/sup 2/. [...]
2003 - Published in : Eur. Phys. J. C 26 (2003) 357-370
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8.
Production of $\Xi^*$ resonances in $\Sigma ^{-}$ induced reactions at 345 GeV/c / WA89 Collaboration
We report on a measurement of the differential and total cross sections of inclusive production of Xi * resonances in Sigma /sup -/- nucleus collisions at 345 GeV/c. The cross section for inclusive Xi /sub 1530//sup 0/ production is about a factor of 5 below that of Xi /sub 1320//sup -/ hyperons. [...]
Geneva : CERN, 1999 - Published in : Eur. Phys. J. C 11 (1999) 271-8
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9.
Charge asymmetries for D, $D_{s}$ and $\Lambda_{c}$ production in $\Sigma^{-}$ -nucleus interactions at 340 GeV/c / WA89 Collaboration
CERN experiment WA89 has studied charmed particles produced by a Sigma /sup -/ beam at 340 GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to production of those which do $9 not. [...]
1999 - Published in : Eur. Phys. J. C 8 (1999) 593-601
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10.
Production of xi resonances in sigma induced reactions at 345 GeV/c / WA89 Collaboration
We report on a measurement of the differential and total cross sections of inclusive production of Xi resonances in Sigma - nucleus collisions at 345 GeV/c..
hep-ex/9907021.- 1999 - 11 p. - Published in : Eur. Phys. J. C 11 (1999) 271-278 Fulltext: PDF; External link: DURHAM
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