NDLI: Measurements of the spin rotation parameter A in the elastic pion-proton scattering in the D13(1700) resonance region

Content Provider	Springer Nature Link
Author	Alekseev, I.G. Bazhav, N.A. Beloglazov, Yu.A. Budkovsky, P.E. Bunyatova, E.I. Kanavets, V.P. Kovalev, A.I. Koroleva, L.I. Kruglov, S.P. Morozov, B.V. Nesterov, V.M. vinsky, D.V. Ryltsov, V.V. Shchedrov, V.A. Sulimov, A.D. Sumachev, V.V. Svirida, D.N. Trautman, V.Yu. Zhurkin, V.V.
Copyright Year	2001
Abstract	The spin rotation parameters A and R were measured for the elastic pion-proton scattering by the PNPI-ITEP collaboration in the D13(1700) resonance region. The main goal of the experimental program is to resolve the current partial-wave analyses (PWA) uncertainties. Simultaneously with A and R the polarization parameter P was measured with the purpose to improve the experimental database and estimate systematic errors. The constraint which demands a smooth energy dependence of all π- p transverse amplitude zeros in the complex plane together with the new experimental data on A parameter can lead to the conclusion that the Barrelet branch of “zero trajectories" is chosen improperly in PWA of the Carnegie-Mellon-Lawrence-Berkely-Laboratory groups at the range of the pion beam momentum near 1.0 GeV/c. The setup included a longitudinally polarized proton target with superconductive magnet, multiwire spark chambers and carbon polarimeter with thick filter. The experiment was performed at the ITEP proton synchrotron, Moscow.
Starting Page	117
Ending Page	120
Page Count	4
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	12
Issue Number	1
e-ISSN	1434601X
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-09-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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