Monte Carlo shower simulations are essential for understanding and predicting the
consequences of beam losses in high-energy proton and ion colliders. Shower simulations …

The first proton run of the LHC was very successful and resulted in important physics
discoveries. It was followed by a two-year shutdown where a large number of improvements …

The interaction of dust particles with the LHC proton beams accounts for a major fraction of
irregular beam loss events observed in LHC physics operation. The events cease after a few …

A comprehensive review of special beam loss scenarios during Run 2 is presented, with
main focus on studies and actions taken to mitigate their impact on LHC operations. An …

Micrometer-sized dust particles present in the Large Hadron Collider (LHC) beam pipe are
believed to have caused many thousands of sporadic beam loss events around the LHC …

The Large Hadron Collider (LHC) at the European Organization for Nuclear Research
(CERN) is the largest accelerator in the world, spanning a circumference of 26.7 km. During …

Accurate evaluations of the margins of available aperture in the LHC and HL-LHC are very
important, in order to judge if proposed optics and hardware are adequate, and to push the …

Abstract In 2015 the Large Hadron Collider (LHC) entered the first year in its second long
Run, after a 2-year shutdown that prepared it for high energy. The first two months of beam …

M. Blaszkiewicz, L. Felsberger, C. Hernalsteens, J. Heron, C. Obermair, G. Rosaz, R.
Schmidt, J. Uythoven, C. Wiesner, D. Wollmann CERN, CH-1211 Geneva, Switzerland M …

Macroparticles in the LHC beam pipes can interact with the proton beams and cause
significant beam losses. The" UFO"(Unidentified Falling Objects) hypothesis describes a …