19–24 May 2024
Music City Center
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Measurements of beam correlations induced via coupled resonance crossing in the CERN PSB

SUPC002
19 May 2024, 14:00
4h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

201 Rep. John Lewis Way S, Nashville, TN 37203, USA
Student Poster Presentation MC1.A04 Circular Accelerators Student Poster Session

Speaker

Elleanor Lamb (Ecole Polytechnique Fédérale de Lausanne)

Description

Beam profile measurements in the LHC and its injector complex show heavy tails in both transverse planes. From standard profile measurements, it is not possible to determine
if the underlying phase space distribution is statistically independent. A measurement campaign in the CERN PSB was carried out to introduce cross-plane dependence in bunched beams in controlled conditions, in view of characterizing the LHC operational beam distributions. The results of the measurement campaign demonstrate how heavy tails can be created via coupled resonance excitation of the lattice in the presence of space charge, in accordance with predictions from the fixed line theory. The coupled resonance introduces dependence between the different planes, which persists after the resonance excitation is removed.

Region represented Europe
Paper preparation format LaTeX

Primary author

Elleanor Lamb (Ecole Polytechnique Fédérale de Lausanne)

Co-authors

Foteini Asvesta (European Organization for Nuclear Research) Giuliano Franchetti (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Guido Sterbini (European Organization for Nuclear Research) Hannes Bartosik (European Organization for Nuclear Research) Mike Seidel (Paul Scherrer Institut) Simon Albright (European Organization for Nuclear Research) Tirsi Prebibaj (European Organization for Nuclear Research)

Presentation materials

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