Доклады на
международном
совещании СПИН-2005 (Дубна)
1. Spin physics program in the U70 polarized proton beam
Список авторов
V.V. Abramov,
S.I. Alekhin,
A.S. Belov,
V.I. Garkusha,
A.V. Efremov,
P.F. Ermolov,
S.V. Ivanov,
V.I. Kravtsov,
V.I. Kryshkin,
A.V. Kubarovsky,
A.K. Likhoded,
V.V. Mochalov,
D.A. Morozov,
L.V. Nogach,
S.B. Nurushev,
A.F. Prudkoglyad,
V.N. Ryadovikov,
Igor A. Savin,
P.A. Semenov,
Y.M. Shatunov,
S.R. Slabospitsky,
L.A. Tikhonova,
D.K. Toporkov,
S.M. Troshin,
E.F. Troyanov,
M.N. Ukhanov,
A.N. Vasiliev
Serpukhov, IHEP & Troitsk, INR & Dubna, JINR
& SINP, Moscow & Novosibirsk, IYF
Abstract
A possibility to accelerate a high intensity polarized proton beam up
to 70
GeV at the IHEP accelerator, extract it from the main ring and deliver
to
several experimental setups is being studied now. We propose to study a
wealth
of single- and double-spin observables in various reactions using
longitudinally and transverserly polarized proton beams at U70. The
proposed
measurements can be done at the existing detectors as well as require
to create
a few new experimental setups at U70.
Статья опубликована:
2. The proton beam polarimetry at the IHEP U-70
facility
Список авторов
S.B. Nurushev
Abstract
The polarized proton beam is planned to be accelerated in the U70
accelerator of IHEP (Protvino, Russia). The polarized ion source feeds
the chain: Linac Ural30 - Booster 1.5 - U70. After acceleration up to
70- GeV the polarized beam is assumed to be extracted by fast or/and
slow extraction systems and distributed over several fixed target
experimental set-ups. The main goal of this presentation is to analyze
the possible means of measuring the proton beam polarization at the
appropriate places in the chain.
Статья опубликована:
3. About Polarized protons acceleration at U-70
Список авторов
Otboyev, P.Yu.Shatunov, Yu.M.Shatunov,V.Ivanov, S.B.Nurushev
Abstract
A possibility to accelerate polarized proton at the synchrotron U-70
is considered. Estimations of the spin resonances are given in the
energy range 2.5 – 70 GeV. To suppress depolarizing effects of spin
resonances, a scheme of three partial Siberian snakes is suggested.
Each snake consists from helical magnets with 4.5 T magnetic field.
The scheme provides the adiabatic spin flip at imperfection
resonances and suppresses all intrinsic resonances by quite realistic
beam emittance and magnets misalignments
Статья опубликована:
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