Search Results - "Sivers, D W"

4-twist helix snake to maintain polarization in multi-GeV proton rings by Antoulinakis, F., Chen, Y., Dutton, A., Rossi De La Fuente, E., Haupert, S., Ljungman, E. A., Myers, P. D., Thompson, J. K., Tai, A., Aidala, C. A., Courant, E. D., Krisch, A. D., Leonova, M. A., Lorenzon, W., Raymond, R. S., Sivers, D. W., Wong, V. K., Yang, T., Derbenev, Y. S., Morozov, V. S., Kondratenko, A. M.

“…Solenoid Siberian snakes have successfully maintained polarization in particle rings below 1 GeV, but never in multi-GeV rings, because the spin rotation by a…”
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Unexpected reduction of rf spin resonance strength for stored deuteron beams by Krisch, A. D., Leonova, M. A., Morozov, V. S., Raymond, R. S., Sivers, D. W., Wong, V. K., Gebel, R., Lehrach, A., Lorentz, B., Maier, R., Prasuhn, D., Schnase, A., Stockhorst, H., Hinterberger, F., Ulbrich, K.

“…Stored beams of polarized protons, electrons, or deuterons can be spin flipped by sweeping an rf dipole’s or solenoid’s frequency through an rf spin resonance…”
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Unexpected enhancements and reductions of rf spin resonance strengths by Leonova, M. A., Morozov, V. S., Krisch, A. D., Raymond, R. S., Sivers, D. W., Wong, V. K., Gebel, R., Lehrach, A., Lorentz, B., Maier, R., Prasuhn, D., Schnase, A., Stockhorst, H., Hinterberger, F., Ulbrich, K.

“…We recently analyzed all available data on spin-flipping stored beams of polarized protons, electrons, and deuterons. Fitting the modified Froissart-Stora…”
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Spin manipulating stored 1.85     GeV / c vector and tensor polarized spin-1 bosons by Morozov, V. S., Krisch, A. D., Leonova, M. A., Raymond, R. S., Sivers, D. W., Wong, V. K., Gebel, R., Lehrach, A., Lorentz, B., Maier, R., Prasuhn, D., Schnase, A., Stockhorst, H., Eversheim, D., Hinterberger, F., Rohdjeß, H., Ulbrich, K., Yonehara, K.

“…We recently studied the spin manipulation of 1.85  GeV/c vertically polarized deuterons stored in the COSY cooler synchrotron. We adiabatically swept an rf…”
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First spin flipping of a stored spin-1 polarized beam by Morozov, V S, Etienne, Z B, Kandes, M C, Krisch, A D, Leonova, M A, Sivers, D W, Wong, V K, Yonehara, K, Anferov, V A, Meyer, H O, Schwandt, P, Stephenson, E J, von Przewoski, B

“…We recently studied spin flipping of a 270 MeV vertically polarized deuteron beam stored in the Indiana University Cyclotron Facility Cooler Ring. We…”
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Experimental test of the new analytic matrix formalism for spin dynamics by Morozov, V. S., Chao, A. W., Krisch, A. D., Leonova, M. A., Raymond, R. S., Sivers, D. W., Wong, V. K., Gebel, R., Lehrach, A., Lorentz, B., Maier, R., Prasuhn, D., Stockhorst, H., Hinterberger, F., Ulbrich, K., Schnase, A.

“…We recently started testing Chao’s proposed new matrix formalism for describing the spin dynamics due to a single spin resonance. The Chao formalism is…”
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Erratum: Unexpected enhancements and reductions of rf spin resonance strengths [Phys. Rev. ST Accel. Beams 9 , 051001 (2006)] by Leonova, M. A., Morozov, V. S., Krisch, A. D., Raymond, R. S., Sivers, D. W., Wong, V. K., Gebel, R., Lehrach, A., Lorentz, B., Maier, R., Prasuhn, D., Schnase, A., Stockhorst, H., Hinterberger, F., Ulbrich, K.

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Higher order spin resonances in a 2.1-GeV/c polarized proton beam by Leonova, M A, Askari, J A, Gordon, K N, Krisch, A D, Liu, J, Morozov, V S, Nees, D A, Raymond, R S, Sivers, D W, Wong, V K, Hinterberger, F

“…Spin resonances can depolarize or spin flip a polarized beam. We studied 1st and higher order spin resonances with stored 2.1  GeV/c vertically polarized…”
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Experimental verification of predicted beam-polarization oscillations near a spin resonance by Morozov, V S, Chao, A W, Krisch, A D, Leonova, M A, Raymond, R S, Sivers, D W, Wong, V K, Garishvili, A, Gebel, R, Lehrach, A, Lorentz, B, Maier, R, Prasuhn, D, Stockhorst, H, Welsch, D, Hinterberger, F, Ulbrich, K, Schnase, A, Stephenson, E J, Brantjes, N P M, Onderwater, C J G, da Silva, M

“…The Chao matrix formalism allows analytic calculations of a beam's polarization behavior inside a spin resonance. We recently tested its prediction of…”
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Narrow spin resonance width and spin flip with an rf-bunched deuteron beam by Morozov, V S, Chao, A W, Krisch, A D, Leonova, M A, Raymond, R S, Sivers, D W, Wong, V K, Kondratenko, A M

“…We used an rf solenoid to study the widths of rf spin resonances with both bunched and unbunched beams of 1.85 GeV/c polarized deuterons stored in the COSY…”
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Spin flipping a stored polarized proton beam with an rf dipole by Anferov, V. A., Blinov, B. B., Kantsyrev, D. Yu, Krisch, A. D., Sivers, D. W., Chu, C. M., Schwandt, P., von Przewoski, B., Grishin, V. N.

“…We recently studied the spin flipping of a 202.7 MeV vertically polarized proton beam stored in the Indiana University Cyclotron Facility cooler ring during…”
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Spin flipping with an rf dipole and a full Siberian snake by Blinov, B. B., Derbenev, Ya. S., Kageya, T., Kantsyrev, D. Yu, Krisch, A. D., Morozov, V. S., Sivers, D. W., Wong, V. K., Anferov, V. A., Schwandt, P., von Przewoski, B.

“…We recently used an rf dipole magnet to study the spin flipping of a 120 MeV horizontally polarized proton beam stored in the presence of a nearly full…”
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Experimental test of a new technique to overcome spin-depolarizing resonances by Morozov, V S, Chao, A W, Krisch, A D, Leonova, M A, Raymond, R S, Sivers, D W, Wong, V K, Garishvili, A, Gebel, R, Lehrach, A, Lorentz, B, Maier, R, Prasuhn, D, Stockhorst, H, Welsch, D, Hinterberger, F, Kondratenko, A M

“…We recently tested a new spin resonance crossing technique, Kondratenko Crossing (KC), by sweeping an rf-solenoid's frequency through an rf-induced spin…”
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Erratum: Spin flipping with an rf dipole and a full Siberian snake [Phys. Rev. ST Accel. Beams 3, 104001 (2000)] by Blinov, B. B., Derbenev, Ya. S., Kageya, T., Kantsyrev, D. Yu, Krisch, A. D., Morozov, V. S., Sivers, D. W., Wong, V. K., Anferov, V. A., Schwandt, P., von Przewoski, B.

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Synchrotron-sideband snake depolarizing resonances by Blinov, B. B., Anferov, V. A., Derbenev, Ya. S., Kageya, T., Krisch, A. D., Lorenzon, W., Sivers, D. W., Sourkont, K. V., Wong, V. K., Youssof, S. S., Chu, C. M., Lee, S. Y., Rinckel, T., Schwandt, P., Sperisen, F., von Przewoski, B., Sato, H.

“…We recently created a snake depolarizing resonance using an rf solenoid magnet in a ring containing a nearly 100% Siberian snake. We found that the primary…”
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Vector and tensor polarization lifetimes for a stored deuteron beam by Przewoski, B V, Anferov, V A, Meyer, H O, Schwandt, P, Stephenson, E J, Morozov, V S, Etienne, Z B, Kandes, M C, Leonova, M A, Sivers, D W, Yonehara, K

“…The time dependence of the vector and tensor polarization of a 270 MeV stored deuteron beam was measured near a depolarizing resonance, which was induced by an…”
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Spin Flipping in the Presence of a Full Siberian Snake by Blinov, B. B., Anferov, V. A., Derbenev, Ya. S., Kageya, T., Krisch, A. D., Lorenzon, W., Ratner, L. G., Sivers, D. W., Sourkont, K. V., Wong, V. K., Chu, C. M., Lee, S. Y., Rinckel, T., Schwandt, P., Sperisen, F., von Przewoski, B., Sato, H.

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One 4-Twist Helix Snake to Maintain Polarization in 8-120 GeV Proton Rings by Antoulinakis, F, Ljungman, E. A, Tai, A, Aidala, C. A, Courant, E. D, Krisch, A. D, Lorenzon, W, Myers, P. D, Raymond, R. S, Sivers, D. W, Leonova, M. A, Derbenev, Y. S, Morozov, V. S, Kondratenko, A. M

“…Phys. Rev. Accel. Beams 20, 091003 (2017) Solenoid Siberian snakes have successfully maintained polarization in particle rings below 1 GeV, but never in…”
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Higher Order Spin Resonances in a 2.1 GeV/c Polarized Proton Beam by Leonova, M. A, Askari, J. A, Gordon, K. N, Krisch, A. D, Liu, J, Morozov, V. S, Nees, D. A, Raymond, R. S, Sivers, D. W, Wong, V. K, Hinterberger, F

“…Physical Review Letters 108, 074801 (2012) Spin resonances can depolarize or spin-flip a polarized beam. We studied 1st and higher order spin resonances with…”
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Unexpectedly wide rf-induced synchrotron sideband depolarizing resonances by Chu, C. M., Ellison, T. J. P., Lee, S. Y., Rinckel, T., Schwandt, P., Sperisen, F., von Przewoski, B., Anferov, V. A., Blinov, B. B., Bychkov, M. A., Caussyn, D. D., Courant, E. D., Crandell, D. A., Derbenev, Ya. S., Kaufman, W. A., Krisch, A. D., Lorenzon, W., Nurushev, T. S., Phelps, R. A., Ratner, L. G., Wong, V. K., Ohmori, C., Minty, M. G., Martin, P. S., Russell, A. D., Sivers, D. W.

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