TY - JOUR

T1 - Betatron Stopbands in the VEPP-2000 Collider

AU - Chistyakov, D. E.

AU - Perevedentsev, E. A.

PY - 2025/2/5

Y1 - 2025/2/5

N2 - Abstract: The final-focus solenoids of the VEPP‑2000 round-beam e+e− collider are able to cause stopbands in the betatron tune plane. The available tune space in the most important region near the parametric resonances (above the integer tunes) is limited by this specific stopband domain. The combined effect of the decompensated solenoids and the parametric resonances at the integers is theoretically studied. The results are complemented with numerical investigations and simulation using the RING program. The stability domain boundaries in the betatron tune plane have been experimentally determined, and their position is in good agreement with the theoretical expectations.

AB - Abstract: The final-focus solenoids of the VEPP‑2000 round-beam e+e− collider are able to cause stopbands in the betatron tune plane. The available tune space in the most important region near the parametric resonances (above the integer tunes) is limited by this specific stopband domain. The combined effect of the decompensated solenoids and the parametric resonances at the integers is theoretically studied. The results are complemented with numerical investigations and simulation using the RING program. The stability domain boundaries in the betatron tune plane have been experimentally determined, and their position is in good agreement with the theoretical expectations.

KW - betatron tunes

KW - parametric resonances

KW - stopbands

UR - https://www.mendeley.com/catalogue/48a6dd56-c21d-3bfe-b317-90d26dfe71cf/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105004731919&origin=inward&txGid=615728551279d344715ac9b2148fe8ce

U2 - 10.1134/S0020441224701379

DO - 10.1134/S0020441224701379

M3 - Article

VL - 67

SP - S45-S51

JO - Instruments and Experimental Techniques

JF - Instruments and Experimental Techniques

SN - 0020-4412

IS - Suppl 1

ER -