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CERN Document Server 2,048 records found  1 - 10próximoend  jump to record: Search took 0.44 seconds. 
1.
(100)
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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2.
(91)
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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3.
(79)
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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4.
(77)
The (K$^{-}, \pi^{-}$) strangeness-exchange reaction on Li, Li, AND Be / Heidelberg-Saclay-Strasbourg Collaboration
CERN-EP-79-124.- Geneva : CERN, 1979 - 5 p. Fulltext: PDF;
In : 8th International Conference on High-energy Physics and Nuclear Structure, Vancouver, Canada, 13 - 17 Aug 1979, pp.124
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5.
(77)
Search for $\Sigma$ hypernuclei by means of the strangeness-exchange reactions (K$^{-}, \pi^{-}$) and (K$^{-}, \pi^{+}$) / Heidelberg-Saclay-Strasbourg Collaboration
CERN-EP-79-97.- Geneva : CERN, 1979 - 7 p. Fulltext: PDF;
In : 8th International Conference on High-energy Physics and Nuclear Structure, Vancouver, Canada, 13 - 17 Aug 1979, pp.136
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6.
(62)
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^- 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 not. [...]
hep-ex/9803021; CERN-EP-98-041; CERN-EP-98-41; MPI-K-H-V5-1998; CERN-EP-98-041; MPI-H-98-V-5.- Geneva : CERN, 1999 - 14 p. - Published in : Eur. Phys. J. C 8 (1999) 593-601 Fulltext: 9803021 - PDF; arXiv:hep-ex_9803021 - PDF; External link: DURHAM - Please contact the library if you need to access this document.
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7.
(62)
Spin-orbit interaction of lambda particles in nuclei / Heidelberg-Saclay-Strasbourg Collaboration
Geneva : CERN, 1978 - 9 p. - Published in : Phys. Lett. B 79 (1978) 157-160 Fulltext: PDF;
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8.
(57)
Measurement of the $\Omega_{c}^{0}$ lifetime / WA89 Collaboration
We present the measurement of the lifetime of the Omega_c we have performed using three independent data samples from two different decay modes. Using a Sigma- beam of 340 GeV/c we have obtained clean signals for the Omega_c decaying into Xi- K- pi+ pi+ and Omega- pi+ pi- pi+, avoiding topological cuts normally used in charm analysis. [...]
hep-ex/9507004; MPI-H-V27-1995; CERN-PPE-95-105; MPI-H-95-V-27.- Geneva : CERN, 1995 - 14 p. - Published in : Phys. Lett. B 358 (1995) 151-161 Fulltext: ppe-95-105 - PDF; arXiv:hep-ex_9507004 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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9.
(51)
The Cryogenic Storage Ring Project at Heidelberg / Von Hahn, R (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Crespo Lopez-Urrutia, J R (Heidelberg, Max Planck Inst.) ; Froese, M W (Heidelberg, Max Planck Inst.) ; Grieser, M (Heidelberg, Max Planck Inst.) ; Lange, M (Heidelberg, Max Planck Inst.) ; Laux, F (Heidelberg, Max Planck Inst.) ; Menk, S (Heidelberg, Max Planck Inst.) ; Orlov, D (Heidelberg, Max Planck Inst.) ; Quack, H (Dresden, Tech. U.) et al.
2008 - 3 p. External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPC137
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10.
(50)
Determination of the total $c\overline{c}$ production cross section in 340 GeV/c $\Sigma^{-}$ - nucleus interactions / WA89 Collaboration
The production of charmed particles by Sigma- of 340 Gev/c momentum was studied in the hyperon beam experiment WA89 at the CERN-SPS, using the Omega-spectrometer. In two data-taking periods in 1993 and 1994 an integrated luminosity of 1600 microb^-1 on copper and carbon targets was recorded. [...]
hep-ex/9908061.- 2000 - 9 p. - Published in : Eur. Phys. J. C 13 (2000) 247-254 Fulltext: PDF; External link: DURHAM
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