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@inproceedings{dilly:ipac2021-mopab258, author = {J. Dilly and E.H. Maclean and R. Tomás García}, title = {{Corrections of Non-Linear Field Errors with Asymmetric Optics in LHC and HL-LHC Insertion Regions}}, booktitle = {Proc. IPAC'21}, pages = {817--820}, eid = {MOPAB258}, language = {english}, keywords = {optics, simulation, hadron, collider, insertion}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-MOPAB258}, url = {https://jacow.org/ipac2021/papers/mopab258.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB258}, abstract = {{Existing correction schemes to locally suppress resonance driving terms in the error-sensitive high-beta regions of the LHC and HL-LHC have operated on the assumption of symmetric beta-functions of the optics in the two rings. As this assumption can fail for a multitude of reasons, such as inherently asymmetric optics and unevenly distributed errors, an extension of this correction scheme has been developed removing the need for symmetry by operating on the two separate optics of the beams at the same time. Presented here is the impact of this novel approach on dynamic aperture as an important measure of particle stability.}}, }