CERN Accelerating science

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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
2.
L'internationalisme de la science pour idéal / Thomas Walcher
Published in: Courrier CERN Volume 40, N° 10, Décembre 2000
Genève : CERN, 2000
3.
Electric and magnetic form factors of the proton / A1 Collaboration
The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 \lesssim Q^2 \lesssim 1$\ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $\sim$ 0.37%. [...]
arXiv:1307.6227.- 2014-07-29 - 34 p. - Published in : Phys. Rev. C 90 (2014) 015206 Fulltext: PDF; External link: Preprint
4.
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
5.
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
6.
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
7.
The Heidelberg Heavy Ion Postaccelerator / Huck, B ; Ingwersen, H ; Jaeschke, E ; Kolb, B ; Repnow, R ; Walcher, T
1981 External link: Published version from JACoW
In : 9th Particle Accelerator Conference, Washington, DC, USA, 11 - 13 Mar 1981, pp.3516
8.
The First Year of Operation at the Heidelberg Heavy-Ion Postaccelerator / Jaeschke, E ; Huck, B ; Ingwersen, H ; Kolb, B ; Repnow, R ; Walcher, T
1979 External link: Published version from JACoW
In : 8th Particle Accelerator Conference, San Francisco, CA, USA, 12 - 14 Mar 1979, pp.3667
9.
The Computer-Control-System of the Heidelberg Postaccelerator / Repnow, R ; Ingwersen, H ; Jaeschke, E ; Kandler, H ; Walcher, T
1979 External link: Published version from JACoW
In : 8th Particle Accelerator Conference, San Francisco, CA, USA, 12 - 14 Mar 1979, pp.3398
10.
Operation Experiences with the Test Section of a Superconducting Heavy Ion Post Accelerator / Hochschild, G ; Ingwersen, H ; Jaeschke, E ; Piosczyk, B ; Repnow, R ; Schwarz, H ; Vetter, J E ; Walcher, T
1977 External link: Published version from JACoW
In : 7th IEEE Particle Accelerator Conference, Chicago, IL, USA, 16 - 18 Mar 1977, pp.1150

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