Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons

D. Adams , B Adeva , T. Akdogan , E. Arik , A. Arvidson , B Badelek , G. Bardin , G. Baum , P. Berglund , L. Betev , R. Birsa , P. Björkholm , B.E. Bonner , N. Botton , M. Boutemeur , F. Bradamante , A. Bravar , A. Bressan , S. Bültmann , E. Burtin , C. Cavata , M. Clocchiatti , D. Crabb , J. Cranshaw , T. Çuhadar , S. Dalla Torre , R. Dantzig , B. Derro , A. Deshpande , S. Dhawan , C. Dulya , A. Dyring , S. Eichblatt , J.C. Faivre , D. Fasching , F. Feinstein , C. Fernandez , S. Forthmann , B. Frois , A. Gallas , J.A. Garzon , L. Gatignon , T. Gaussiran , H. Gilly , M. Giorgi , E. Goeler , S. Goertz , I.A. Golutvin , G. Gracia , N. Groot , M. Grosse Perdekamp , K. Haft , D. Harrach , T. Hasegawa , P. Hautle , N. Hayashi , C.A. Heusch , N. Horikawa , V.W. Hughes , G. Igo , S. Ishimoto , T. Iwata , E.M. Kabuß , T. Kageya , A. Karev , H.J. Kessler , T.J. Ketel , J. Kiryluk , I. Kiryushin , A. Kishi , Yu. Kisselev , L. Klostermann , D. Krämer , V. Krivokhijine , W. Kröger , V. Kukhtin , F. Lehar , A. Lesquen , J. Lichtenstadt , T. Lindqvist , M. Litmaath , M. Lowe , A. Magnon , G.K. Mallot , F. Marie , A. Martin , J. Martino , T. Matsuda , B. Mayes , J.S. McCarthy , K. Medved , W. Meyer , G. Middelkoop , D. Miller , Y. Miyachi , K. Mori , J. Moromisato , A. Nagaitsev , J. Nassalski , L. Naumann , T.O. Niinikoski , J.E.J. Oberski , A. Ogawa , C. Ozben , H. Pereira , F. Perrot-Kunne , D. Peshekhonov , R. Piegaia , L. Pinsky , S. Platchkov , M. Plo , D. Pose , H. Postma , J. Pretz , T. Pussieux , G. Rädel , A. Rijllart , G. Reicherz , J.B. Roberts , S. Rock , M. A Callejo-Rodriguez , E Rondio , L. Ropelewski , I. Sabo , J. Saborido , A Sandacz , I. Savin , P. Schiavon , A. Schiller , K.P. Schüler , R. Seitz , Y. Semertzidis , S. Sergeev , P. Shanahan , E.P. Sichtermann , F. Simeoni , G.I. Smirnov , A. Staude , A. Steinmetz , U. Stiegler , H. Stuhrmann , Michał Szleper , F Tessarotto , D. Thers , W. Tlaczala , A. Tripet , G. Unel , M. Velasco , J. Vogt , R. Voss , C. Whitten , R Windmolders , R. Willumeit , W Wiślicki , A. Witzmann , J. Ylöstalo , A.M. Zanetti , Krzysztof Zaremba , N.I. Zamiatin , J Zhao

Abstract

A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190 GeV. The beam polarisation is determined from the asymmetry in the elastic scattering off the polarised electrons of a ferromagnetic target whose magnetisation is periodically reversed. At muon energies of 100 and 190 GeV the measured polarisation is Pμ=−0.80±0.03 (stat.)±0.02 (syst.) and Pμ=−0.797±0.011 (stat.)±0.012 (syst.), respectively. These results agree with measurements of the beam polarisation using a shape analysis of the decay positron energy spectrum.
Author D. Adams - [Rice University]
D. Adams,,
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, B Adeva - [Universidad de Santiago de Compostela]
B Adeva,,
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, T. Akdogan - [Istanbul Teknik Üniversitesi]
T. Akdogan,,
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, E. Arik - [Istanbul Teknik Üniversitesi]
E. Arik,,
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, A. Arvidson - [Uppsala Universitet]
A. Arvidson,,
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, B Badelek - [Uppsala Universitet]
B Badelek,,
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, G. Bardin - [CEA Saclay]
G. Bardin,,
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, G. Baum - [Universitat Bielefeld]
G. Baum,,
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, P. Berglund - [Aalto University (AALTO)]
P. Berglund,,
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- Aalto-yliopisto
, L. Betev - [Ludwig-Maximilians-Universität München]
L. Betev,,
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et al.`
Total number of authors165
Journal seriesNuclear Instruments & Methods in Physics Research Section A Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002
Issue year2000
Vol443
No1
Pages1-19
Keywords in EnglishMagnetised target, Muon beam, Polarisation measurement, Polarised electron, Polarised muon, Polarised scattering
ASJC Classification3105 Instrumentation; 3106 Nuclear and High Energy Physics
DOIDOI:10.1016/S0168-9002(99)01017-7
URL http://www.sciencedirect.com/science/article/pii/S0168900299010177
Languageen angielski
Score (nominal)25
Score sourcejournalList
Publication indicators Scopus Citations = 12; WoS Citations = 13; GS Citations = 30.0; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.303; WoS Impact Factor: 2006 = 1.185 (2) - 2007=1.189 (5)
Citation count*30 (2020-06-07)
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