Erratum: Unexpected enhancements and reductions of rf spin resonance strengths [Phys. Rev. ST Accel. Beams9, 051001 (2006)]

Abstract

We found an error in the header of Table I. In the last column, the E FS =E Bdl ratio should not have a ( 10 ÿ6 ) factor. We apologize for our error; it does not affect any numbers or figures in the original text.PHYSICAL REVIEW SPECIAL TOPICS -ACCELERATORS AND BEAMS 9, 089901 (2006) 1098-4402=06=9(8)=089901 (1) 089901-1

Experimental Verification of Predicted Beam-Polarization Oscillations near a Spin Resonance

“…The spin tune s , which is the number of spin precessions during one turn around the ring, is proportional to the particle's energy; s G, where G g ÿ 2=2 is its gyromagnetic anomaly and is its Lorentz energy factor. Horizontal rf magnetic fields can induce an rf spin resonance [6,9,10], which can be used to spin-manipulate the stored particles [11][12][13][14][15][16]. For deuterons, the rf-induced spin resonance's frequency is…”

Analysis of spin flip data in rings with nearly full Siberian Snakes

“…Concomitant with the acceleration and storage of polarized beams, the use of spin flippers is a recognized tool to aid in the reduction of systematic errors in experiments using stored polarized beams. In a recent paper, Shatunov and Mane [3] fitted experimental measurements of spin flip resonance widths using a radial field rf dipole spin flipper at the COSY storage ring, for both polarized protons [4] and deuterons [5]. A fit to the deuteron data only was also published by Kondratenko et al [6].…”

“…However, the values of the resonance strengths in the above studies were published in a compilation of spin flip measurements in Ref. [4], and I take my data from this latter reference. Note that the compilation in Ref.…”

“…Note that the compilation in Ref. [4] also contains resonance strengths for unpublished data [14] using an rf dipole at the IUCF Cooler. In addition, the staff of the MIT-Bates Linear Accelerator Laboratory [15] very kindly made available to me additional unpublished measurements of spin flip resonance widths for stored polarized electrons at an energy of 850 MeV.…”

Experimental Test of a New Technique to Overcome Spin-Depolarizing Resonances

“…The spin tune s (the number of spin precessions during one turn around the ring) is proportional to the particle's energy: s ¼ G, where G ¼ ðg À 2Þ=2 is its gyromagnetic anomaly and is its Lorentz energy factor. The vertical polarization can be perturbed by any horizontal magnetic field [6,[22][23][24][25][26][27][28][29]. RF magnetic fields can induce rf spin resonances.…”