Measurement of analysing powers for neutron scattering on CH2, CH, C and Cu target for momenta from 3.0 to 4.2 GeV/c

Autor: Ivan A. Philippov, Jozef Urbán, Roman A. Shindin, Charles F. Perdrisat, Kseniya S. Legostaeva, E. Tomasi-Gustafsson, Gabriela Martinská, Alexey N. Livanov, Andrey V. Terletskiy, Natalia V. Kostayeva, D. Marchand, J. R. M. Annand, Yuri P. Bushuev, Dmitry A. Kirillov, E. J. Brash, R. A. Montgomery, Alexey V. Shutov, Viacheslav M. Slepnev, Oleg P. Gavrishchuk, Igor Mihailovich Sitnik, Kieran Hamilton, Ilia V. Slepnev, Pavel A. Rukoyatkin, Sergey N. Basylev, Victor V. Glagolev, Ying Wang, Anatoly A. Povtoreiko, V. A. Punjabi, N.M. Piskunov, Andrey V. Shipunov, Alexander Kovalenko, Jan Musinsky, M. K. Jones
Přispěvatelé: Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: PoS
23rd International Symposium on Spin Physics
23rd International Symposium on Spin Physics, Sep 2018, Ferrara, Italy. pp.151, ⟨10.22323/1.346.0151⟩
ISSN: 1824-8039
DOI: 10.22323/1.346.0151⟩
Popis: International audience; During two beam runs in the years 2016 and 2017, the analyzing powers (Ay) for protons and neutrons scattering on CH2, CH, C and Cu targets were measured at the nucleon momentum from 3.0 to 4.2 GeV/c with the ALPOM2 setup at the Nuclotron accelerator. The data for polarized neutron beam are obtained for the first time, thanks to the unique polarized deuteron beam that is presently available up to 13 GeV/c. Earlier, analyzing powers for polarized neutrons had been measured only for thin hydrogen targets. Cross sections and analyzing powers for np, for both elastic scattering and charge exchange are known up to 29 GeV/c. No data existed for thick analyzers. The measurement of the angular dependence of Ay for the neutron is essential to the continuation of the neutron form factor measurements to the highest possible transferred momentum-Q2 at the Jefferson Laboratory. The reaction p+Cu(W), with the detection of a neutron in the forward direction by a hadron calorimeter, can be used for the measurement of the proton polarization at the future NICA collider.
Databáze: OpenAIRE