Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of pulsed hollow electron-lens operation on the proton beam core
  in LHC   Collimation with hollow electron beams is currently one of the most promising
concepts for active halo control in the HL-LHC. In order to further increase
the diffusion rates for a fast halo removal as e.g. desired before the squeeze,
the electron lens (e-lens) can be operated in pulsed mode. In case of profile
imperfections in the electron beam the pulsing of the e-lens induces noise on
the proton beam which can, depending on the frequency content and strength,
lead to emittance growth. In order to study the sensitivity to the pulsing
pattern and the amplitude, a beam study (machine development MD) at the LHC has
been proposed for August 2016 and we present in this note the preparatory
simulations and estimates.

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The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex