A measurement of the transverse polarization of Λ-hyperons produced in inelastic pN-reactions at 450 GeV proton energy
Journal Article
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· European Physical Journal. C, Particles and Fields
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- Istituto Nazionale di Fisica Nucleare (INFN), Cagliari (Italy). Dipartimento di Fisica
- Univ. of Cambridge (United Kingdom). Cavendish Lab., Physics Dept.
- European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
- Univ. of Edinburgh, Scotland (United Kingdom). Dept. of Physics
- Istituto Nazionale di Fisica Nucleare (INFN), Ferrara (Italy). Dipartimento di Fisica
- Istituto Nazionale di Fisica Nucleare (INFN), Firenze (Italy). Dipartimento di Fisica
- Univ. of Mainz (Germany). Inst. fur Physik
- Univ. Paris-Sud, Orsay (France). Lab. de l'Accelerateur Lineaire (LAL)
- Istituto Nazionale di Fisica Nucleare (INFN), Perugia (Italy). Dipartimento di Fisica
- Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy). Dipartimento di Fisica
- Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA-Saclay), Gif-sur-Yvette (France)
- Univ. of Siegen (Germany). Fachbereich Physik
- Istituto Nazionale di Fisica Nucleare (INFN), Torino (Italy). Dipartimento di Fisica
- Osterreichische Akademie der Wissenschaften, Wien (Austria). Institut fur Hochenergiephysik
Here a study of the polarization of Λ hyperons produced in inelastic pN reactions induced by the 450 GeV proton beam from the CERN SPS has been performed with the NA48 detector. The Λ hyperons were detected at a fixed angle of 4.2 mrad in the momentum range from 50 GeV/c to 200 GeV/c. The polarization changes from -0.053 ± 0.034 to -0.298 ± 0.074 for a transverse momentum range of the Λ between 0.28 GeV/c and 0.86 GeV/c. The $$\bar{Λ}$$ polarization is consistent with zero.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1407021
- Journal Information:
- European Physical Journal. C, Particles and Fields, Vol. 6, Issue 2; ISSN 1434-6044
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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