Polarization of Lambda and anti-Lambda in 920-GeV fixed-target proton-nucleus collisions
- I. ABT
- M. ADAMS
- M. AGARI
- H. ALBRECHT
- A. ALEKSANDROV
- V. AMARAL
- A. AMORIM
- S. J. APLIN
- V. AUSHEV
- Y. BAGATURIA
- V. BALAGURA
- M. BARGIOTTI
- O. BARSUKOVA
- J. BASTOS
- J. BATISTA
- C. BAUER
- T.H. S. BAUER
- A. BELKOV
- A.R. BELKOV
- I. BELOTELOV
- B. BOBCHENKO
- M. BOCKER
- A. BOGATYREV
- G. BOHM
- M. BRAUER
- M. BRUINSMA
- M. BRUSCHI
- P. BUCHHOLZ
- T. BURAN
- J. CARVALHO
- P. CONDE
- C. CRUSE
- M. DAM
- K. M. DANIELSEN
- M. DANILOV
- H. DEPPE
- X. DONG
- H. B. DREIS
- V. EGORYTCHEV
- K. EHRET
- F. EISELE
- D. EMELIYANOV
- S. ERHAN
- S. ESSENOV
- M. FEUERSTACK RAIBLE
- J. FLAMMER
- B. FOMINYKH
- M. FUNCKE
- L.L. GARRIDO
- A. GELLRICH
- B. GIACOBBE
- J. GLA
- D. GOLOUBKOV
- Y. GOLUBKOV
- A. GOLUTVIN
- I. GOLUTVIN
- I. GORBOUNOV
- A. GORISEK
- O. GOUCHTCHINE
- D. C. GOULART
- S. GRADL
- W. GRADL
- F. GRIMALDI
- Y.U. GUILITSKY
- J. D. HANSEN
- J. M. HERNANDEZ
- W. HOFMANN
- M. HOHLMANN
- T. HOTT
- W. HULSBERGEN
- U. HUSEMANN
- O. IGONKINA
- M. ISPIRYAN
- T. JAGLA
- C. JIANG
- H. KAPITZA
- S. KARABEKYAN
- N. KARPENKO
- S. KELLER
- J. KESSLER
- F. KHASANOV
- Y.U. KIRYUSHIN
- I. KISEL
- E. KLINKBY
- K. T. KNOPFLE
- H. KOLANOSKI
- S. KORPAR
- C. KRAUSS
- P. KREUZER
- P. KRIZAN
- D. KRUCKER
- S. KUPPER
- T. KVARATSKHELIIA
- A. LANYOV
- K. LAU
- B. LEWENDEL
- T. LOHSE
- B. LOMONOSOV
- R. MANNER
- R. MANKEL
- S. MASCIOCCHI
- I. MATCHIKHILIAN
- G. MEDIN
- M. MEDINNIS
- M. MEVIUS
- A. MICHETTI
- Y.U. MIKHAILOV
- R. MIZUK
- R. MURESAN
- M. ZUR NEDDEN
- M. NEGODAEV
- M. NORENBERG
- S. NOWAK
- M. T. NUNEZ PARDO DE VERA
- M. OUCHRIF
- F. OULD SAADA
- C. PADILLA
- D. PERALTA
- R. PERNACK
- R. PESTOTNIK
- B. A. PETERSEN
- M. A. PLEIER
- M. POLI
- V. POPOV
- D. POSE
- S. PRYSTUPA
- V. M. PUGATCH
- Y. PYLYPCHENKO
- J. PYRLIK
- K. REEVES
- D. REING
- H. RICK
- I. RIU
- P. ROBMANN
- I. ROSTOVTSEVA
- V. RYBNIKOV
- F. SANCHEZ
- M. SCHMELLING
- B. SCHMIDT
- A. SCHREINER
- H. SCHRODER
- U. SCHWANKE
- ALAN J. SCHWARTZ
- ANDREAS S. SCHWARZ
- B. SCHWENNINGER
- B. SCHWINGENHEUER
- F. SCIACCA
- S. SHUVALOV
- L. SILVA
- L. SOZUER
- S. SOLUNIN
- A. SOMOV
- S. SOMOV
- J. SPENGLER
- R. SPIGHI
- A. SPIRIDONOV
- A. STANOVNIK
- M. STARIC
- C. STEGMANN
- H. S. SUBRAMANIA
- M. SYMALLA
- I. TIKHOMIROV
- M. TITOV
- I. TSAKOV
- U. UWER
- C. VAN ELDIK
- Y.U. VASSILIEV
- I. VUKOTIC
- H. WAHLBERG
- A. H. WALENTA
- M. WALTER
- J. J. WANG
- D. WEGENER
- U. WERTHENBACH
- H. WOLTERS
- R. WURTH
- A. WURZ
- Y.U. ZAITSEV
- M. ZAVERTYAEV
- T. ZEUNER
- A. ZHELEZOV
- Z. ZHENG
- R. ZIMMERMANN
- T. ZIVKO
- BERTIN, ANTONIO
- DE CASTRO, STEFANO
- FABBRI, LAURA
- FACCIOLI, PIETRO
- MASSA, IGNAZIO GIACOMO
- PICCININI, MAURIZIO
- SBRIZZI, ANTONIO
- SEMPRINI CESARI, NICOLA
- VILLA, MAURO
- VITALE, ANTONIO
- ZOCCOLI, ANTONIO
DOIAbstract
A measurement of the polarization of Lambda and Anti-Lambda baryons produced in pC and pW collisions at sqrt(s)=41.6 GeV has been performed with the HERA-B spectrometer. The measurements cover the kinematic range of 0.6 GeV/c < p_T<1.2 GeV/c in transverse momentum and -0.15<x_F<0.01 in Feynman-x. The polarization results from the two different targets agree within the statistical error. In the combined data set, the largest deviation from zero, +0.054 +- 0.029, is measured for x_F < -0.07. Zero polarization is expected at x_F=0 in the absence of nuclear effects. The polarization results for the Lambda agree with a parametrization of previous measurements which were performed at positive x_F values, where the Lambda polarization is ...
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