Comment on “Collision monochromatization in e^{+}e^{-} colliders”

Comment on “Collision monochromatization in e^{+}e^{-} colliders”

Bogomyagkov and Levichev [Phys. Rev. Accel. Beams 20, 051001 (2017)PRABCJ2469-988810.1103/PhysRevAccelBeams.20.051001] have recently reported on monochromatization in collision schemes with crossing angle. From their results, in particular, it may seem that: (1) horizontal dispersion at the IP can p...

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Main Author: D. Shatilov
Format: Article
Language:English
Published: American Physical Society 2018-02-01
Series:Physical Review Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevAccelBeams.21.028001
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spelling doaj-09149493195c48d198317706c2a602e32020-11-25T01:39:49ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882018-02-0121202800110.1103/PhysRevAccelBeams.21.028001Comment on “Collision monochromatization in e^{+}e^{-} colliders”D. ShatilovBogomyagkov and Levichev [Phys. Rev. Accel. Beams 20, 051001 (2017)PRABCJ2469-988810.1103/PhysRevAccelBeams.20.051001] have recently reported on monochromatization in collision schemes with crossing angle. From their results, in particular, it may seem that: (1) horizontal dispersion at the IP can provide monochromatization factor Λ≫1 while retaining Piwinski angle ϕ>1, (2) production rate in such a scheme for FCC-ee at 62.5 GeV can be larger than that in the nominal crab waist collision, and (3) strong rf focusing can be used for monochromatization purposes. We demonstrate here that the first two statements are not correct, and the last one is very doubtful.http://doi.org/10.1103/PhysRevAccelBeams.21.028001
collection DOAJ
language English
format Article
sources DOAJ
author D. Shatilov
spellingShingle D. Shatilov
Comment on “Collision monochromatization in e^{+}e^{-} colliders”
Physical Review Accelerators and Beams
author_facet D. Shatilov
author_sort D. Shatilov
title Comment on “Collision monochromatization in e^{+}e^{-} colliders”
title_short Comment on “Collision monochromatization in e^{+}e^{-} colliders”
title_full Comment on “Collision monochromatization in e^{+}e^{-} colliders”
title_fullStr Comment on “Collision monochromatization in e^{+}e^{-} colliders”
title_full_unstemmed Comment on “Collision monochromatization in e^{+}e^{-} colliders”
title_sort comment on “collision monochromatization in e^{+}e^{-} colliders”
publisher American Physical Society
series Physical Review Accelerators and Beams
issn 2469-9888
publishDate 2018-02-01
description Bogomyagkov and Levichev [Phys. Rev. Accel. Beams 20, 051001 (2017)PRABCJ2469-988810.1103/PhysRevAccelBeams.20.051001] have recently reported on monochromatization in collision schemes with crossing angle. From their results, in particular, it may seem that: (1) horizontal dispersion at the IP can provide monochromatization factor Λ≫1 while retaining Piwinski angle ϕ>1, (2) production rate in such a scheme for FCC-ee at 62.5 GeV can be larger than that in the nominal crab waist collision, and (3) strong rf focusing can be used for monochromatization purposes. We demonstrate here that the first two statements are not correct, and the last one is very doubtful.
url http://doi.org/10.1103/PhysRevAccelBeams.21.028001
work_keys_str_mv AT dshatilov commentoncollisionmonochromatizationineecolliders
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