First spin flipping of a stored spin-1 polarized beam

V. S. Morozov; Z. B. Etienne; M. C. Kandes; A. D. Krisch; M. A. Leonova; D. W. Sivers; V. K. Wong; K. Yonehara; V. A. Anferov; H. O. Meyer; P. Schwandt; E. J. Stephenson; B. von Przewoski

doi:10.1103/PhysRevLett.91.214801

First spin flipping of a stored spin-1 polarized beam

V. S. Morozov, Z. B. Etienne, M. C. Kandes, A. D. Krisch, M. A. Leonova, D. W. Sivers, V. K. Wong, K. Yonehara, V. A. Anferov, H. O. Meyer, P. Schwandt, E. J. Stephenson, B. von Przewoski

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24 Scopus citations

Abstract

We recently studied spin flipping of a 270 MeV vertically polarized deuteron beam stored in the Indiana University Cyclotron Facility Cooler Ring. We adiabatically swept an rf solenoid’s frequency through an rf-induced spin resonance and observed its effect on the deuterons’ vector and tensor polarizations. After optimizing the resonance crossing rate and maximizing the solenoid’s voltage, we measured a vector spin-flip efficiency of [Formula presented]. We also found striking behavior of the spin-1 tensor polarization.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.91.214801
State	Published - 2003
Externally published	Yes

Funding

We thank J. M. Cameron, A. S. Belov, V. P. Derenchuk, G. W. East, D. L. Friesel, T. Rinckel, W. T. Sloan, and the entire Indiana University Cyclotron Facility staff for the successful operation of the Cooler Ring. We also thank B. B. Blinov, A. W. Chao, C. M. Chu, E. D. Courant, M. Q. Crawford, F. Z. Khiari, S. Y. Lee, A. M. T. Lin, M. G. Minty, C. Ohmori, R. A. Phelps, R. E. Pollock, L. G. Ratner, T. Roser, H. Sato, T. Toyama and others for their help with earlier parts of this experiment. We thank W. Haeberli for his timely lecture about tensor polarization and our new SPIN@COSY colleagues for valuable discussions. This research was supported by grants from the U.S. Department of Energy and the U.S. National Science Foundation.

Funders	Funder number
National Science Foundation
U.S. Department of Energy

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10.1103/PhysRevLett.91.214801

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title = "First spin flipping of a stored spin-1 polarized beam",

abstract = "We recently studied spin flipping of a 270 MeV vertically polarized deuteron beam stored in the Indiana University Cyclotron Facility Cooler Ring. We adiabatically swept an rf solenoid{\textquoteright}s frequency through an rf-induced spin resonance and observed its effect on the deuterons{\textquoteright} vector and tensor polarizations. After optimizing the resonance crossing rate and maximizing the solenoid{\textquoteright}s voltage, we measured a vector spin-flip efficiency of [Formula presented]. We also found striking behavior of the spin-1 tensor polarization.",

author = "Morozov, {V. S.} and Etienne, {Z. B.} and Kandes, {M. C.} and Krisch, {A. D.} and Leonova, {M. A.} and Sivers, {D. W.} and Wong, {V. K.} and K. Yonehara and Anferov, {V. A.} and Meyer, {H. O.} and P. Schwandt and Stephenson, {E. J.} and {von Przewoski}, B.",

year = "2003",

doi = "10.1103/PhysRevLett.91.214801",

language = "English",

volume = "91",

journal = "Physical Review Letters",

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T1 - First spin flipping of a stored spin-1 polarized beam

AU - Morozov, V. S.

AU - Etienne, Z. B.

AU - Kandes, M. C.

AU - Krisch, A. D.

AU - Leonova, M. A.

AU - Sivers, D. W.

AU - Wong, V. K.

AU - Yonehara, K.

AU - Anferov, V. A.

AU - Meyer, H. O.

AU - Schwandt, P.

AU - Stephenson, E. J.

AU - von Przewoski, B.

PY - 2003

Y1 - 2003

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DO - 10.1103/PhysRevLett.91.214801

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SN - 0031-9007

VL - 91

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

First spin flipping of a stored spin-1 polarized beam

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