New high precision data on the differential cross sections of the pion-proton elastic scattering

The EPECUR collaboration presents new high precision data on the pion-proton elastic scattering in the second resonance region. The experiment EPECUR is placed on the universal beam channel of the accelerator ITEP. The setup features 0.1% beam pion momentum tagging system, 25 cm long liquid hydrogen...

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Veröffentlicht in:	EPJ Web of conferences 2014, Vol.81, p.2001-4
Hauptverfasser:	Alekseev, I. G., Andreev, V. A., Bordyuzhin, I. G., Filimonov, Ye. A., Golubev, V. V., Gridnev, A. B., Kalinkin, D. V., Koroleva, L. I., Kozlenko, N. G., Kozlov, V. S., Krivshich, A. G., Morozov, B. V., Nesterov, V. M., Novinsky, D. V., Ryltsov, V. V., Sadler, M., Shurygin, B. M., Sulimov, A. D., Sumachev, V. V., Svirida, D. N., Tarakanov, V. I., Trautman, V. Yu
Format:	Artikel
Sprache:	eng
Schlagworte:	Accelerators Channels Cross sections Drift Elastic scattering Intervals Particle beams Pions
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Zusammenfassung:	The EPECUR collaboration presents new high precision data on the pion-proton elastic scattering in the second resonance region. The experiment EPECUR is placed on the universal beam channel of the accelerator ITEP. The setup features 0.1% beam pion momentum tagging system, 25 cm long liquid hydrogen target, placed in mylar container and beryllium outer shell, low material wire drift chambers and high performance DAQ. More than 3 billions of triggers have been collected. The data cover pion beam momentum range 0.8 - 1.3 GeV/c and 40-120 degrees center-of-mass scattering angle range for both positive and negative pions. The measured differential cross section has 2% statistical accuracy in 2 degrees angle and 5 MeV/c momentum intervals.
ISSN:	2100-014X 2100-014X
DOI:	10.1051/epjconf/20148102001