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Measurement of the 1H(γ, p)π0 reaction using a novel nucleon spin polarimeter.

Authors :
Sikora MH
Watts DP
Glazier DI
Aguar-Bartolomé P
Akasoy LK
Annand JR
Arends HJ
Bantawa K
Beck R
Bekrenev VS
Berghäuser H
Braghieri A
Branford D
Briscoe WJ
Brudvik J
Cherepnya S
Codling RF
Demissie BT
Downie EJ
Drexler P
Fil'kov LV
Freehart B
Gregor R
Hamilton D
Heid E
Hornidge D
Howdle DA
Jaegle I
Jahn O
Jude TC
Kashevarov VL
Keshelashvili I
Kondratiev R
Korolija M
Kotulla M
Koulbardis AA
Kruglov SP
Krusche B
Lisin V
Livingston K
MacGregor IJ
Maghrbi Y
Manley DM
Marinides Z
Martinez M
McGeorge JC
McKinnon B
McNicoll EF
Mekterovic D
Metag V
Micanovic S
Middleton DG
Mushkarenkov A
Nefkens BM
Nikolaev A
Novotny R
Ostrick M
Otte PB
Oussena B
Pedroni P
Pheron F
Polonski A
Prakhov S
Robinson J
Rosner G
Rostomyan T
Schumann S
Sober DI
Starostin A
Strakovsky II
Suarez IM
Supek I
Thiel M
Thomas A
Unverzagt M
Werthmüller D
Workman RL
Zamboni I
Zehr F
Source :
Physical review letters [Phys Rev Lett] 2014 Jan 17; Vol. 112 (2), pp. 022501. Date of Electronic Publication: 2014 Jan 15.
Publication Year :
2014

Abstract

We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon. The measurement pioneers a novel polarimetry technique, which can be applied to many other nuclear and hadron physics experiments. The commissioning reaction of 1H(γ, p)π0 in the range 0.4<Eγ<1.4  GeV validates the technique and provides essential new data to constrain the excitation spectrum of the nucleon.

Details

Language :
English
ISSN :
1079-7114
Volume :
112
Issue :
2
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
24484003
Full Text :
https://doi.org/10.1103/PhysRevLett.112.022501