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

I. G. Alekseev; V. A. Andreev; I. G. Bordyuzhin; Ye. A. Filimonov; V. V. Golubev; A. B. Gridnev; D. V. Kalinkin; L. I. Koroleva; N. G. Kozlenko; V. S. Kozlov; A. G. Krivshich; B. V. Morozov; V. M. Nesterov; D. V. Novinsky; V. V. Ryltsov; M. Sadler; B. M. Shurygin; A. D. Sulimov; V. V. Sumachev; D. N. Svirida; V. I. Tarakanov; V. Yu. Trautman

doi:10.1051/epjconf/20148102001

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Open Access

EPJ Web of Conferences 81, 02001 (2014)
https://doi.org/10.1051/epjconf/20148102001

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

I. G. Alekseev¹^a, V. A. Andreev², I. G. Bordyuzhin¹^,3, Ye. A. Filimonov², V. V. Golubev², A. B. Gridnev², D. V. Kalinkin¹, L. I. Koroleva¹, N. G. Kozlenko², V. S. Kozlov², A. G. Krivshich², B. V. Morozov¹, V. M. Nesterov¹, D. V. Novinsky², V. V. Ryltsov¹, M. Sadler⁴, B. M. Shurygin¹, A. D. Sulimov¹, V. V. Sumachev², D. N. Svirida¹, V. I. Tarakanov² and V. Yu. Trautman² for the EPECUR Collaboration

¹ Institute for Theoretical and Experimental Physics, Moscow, 117218, Russia
² Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia
³ National University of Science and Technology “MISiS”, Moscow, 119049, Russia
⁴ Abilene Christian University, Abilene, Texas, TX 79699-7963, USA

^a e-mail: igor.alekseev@itep.ru

Published online: 26 November 2014

Abstract

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.

© Owned by the authors, published by EDP Sciences, 2014

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