Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec; Physics Letters B; Vol. 847

Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec; Physics Letters B; Vol. 847

গ্রন্থ-পঞ্জীর বিবরন
Parent link:	Physics Letters B.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 847.— 2023.— Article number 138283, 7 p.
সংস্থা লেখক:	Томский политехнический университет (570)
অন্যান্য লেখক:	Bashkanov M., Watts D. P., Kay S. J. D., Fiks (Fix) A. I. Alexander Ivanovich
সংক্ষিপ্ত:	Title screen We report a first measurement of the double-polarisation observable, Cx′, in π+ photoproduction off the proton. The Cx′ double-polarisation observable represents the transfer of polarisation from a circularly polarised photon beam to the recoiling neutron. The MAMI circularly polarised photon beam impinged on a liquid deuterium target cell, with reaction products detected in the Crystal Ball calorimeter. Ancillary apparatus surrounding the target provided tracking, particle identification and determination of recoil nucleon polarisation. The Cx′ observable is determined for photon energies 800-1400 MeV, providing new constraints on models aiming to elucidate the spectrum and properties of nucleon resonances. This is the first determination of any polarisation observable from the beam-recoil group of observables for this reaction. Inclusion of the new data in the database of the SAID partial wave analysis shifted the solution to a new global minima which, not only gives better agreement with the current data, but also improves the description of a range of other single and double polarisation observables for charged pion photoproduction Текстовый файл AM_Agreement
ভাষা:	ইংরেজি
প্রকাশিত:	2023
বিষয়গুলি:	электронный ресурс труды учёных ТПУ Photoproduction
অনলাইন ব্যবহার করুন:	https://doi.org/10.1016/j.physletb.2023.138283
বিন্যাস:	বৈদ্যুতিক গ্রন্থের অধ্যায়
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=675272

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