Large Piwinski angle

Two high brightness bunches per beam were collided at injection energy with varying spectrometer strength in IP8 so that the corresponding Piwinski angle changed from about 1.2–1.3 to 0.2. One of the two bunches colliding in IP8 also collided in IPs 1 and 5, increasing its tune spread. A Piwinski an...

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Detalles Bibliográficos
Autores principales: Abelleira, J L, Buffat, X, Bhat, C, Cornelis, K, De Maria, R, Fartoukh, S, Giachino, R, Holzer, E B, Lamont, M, Mastoridis, T, Macpherson, A, Papotti, G, Pieloni, T, Roncarolo, F, Roy, G, Salvachua, B, Valuch, D, Zimmermann, F, Ohmi, K
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1493062
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author Abelleira, J L
Buffat, X
Bhat, C
Cornelis, K
De Maria, R
Fartoukh, S
Giachino, R
Holzer, E B
Lamont, M
Mastoridis, T
Macpherson, A
Papotti, G
Pieloni, T
Roncarolo, F
Roy, G
Salvachua, B
Valuch, D
Zimmermann, F
Ohmi, K
author_facet Abelleira, J L
Buffat, X
Bhat, C
Cornelis, K
De Maria, R
Fartoukh, S
Giachino, R
Holzer, E B
Lamont, M
Mastoridis, T
Macpherson, A
Papotti, G
Pieloni, T
Roncarolo, F
Roy, G
Salvachua, B
Valuch, D
Zimmermann, F
Ohmi, K
author_sort Abelleira, J L
collection CERN
description Two high brightness bunches per beam were collided at injection energy with varying spectrometer strength in IP8 so that the corresponding Piwinski angle changed from about 1.2–1.3 to 0.2. One of the two bunches colliding in IP8 also collided in IPs 1 and 5, increasing its tune spread. A Piwinski angle of 1.2 is the biggest value ever achieved in a hadron collider. The goal of this experiemnt had been to investigate the influence of this parameter on the luminosity lifetime, beam lifetime and emittance growth rate. Due to technical problems and unavailability of luminosity signals from CMS this goal was only partially accomplished.
id cern-1493062
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14930622019-09-30T06:29:59Zhttp://cds.cern.ch/record/1493062engAbelleira, J LBuffat, XBhat, CCornelis, KDe Maria, RFartoukh, SGiachino, RHolzer, E BLamont, MMastoridis, TMacpherson, APapotti, GPieloni, TRoncarolo, FRoy, GSalvachua, BValuch, DZimmermann, FOhmi, KLarge Piwinski angleAccelerators and Storage RingsTwo high brightness bunches per beam were collided at injection energy with varying spectrometer strength in IP8 so that the corresponding Piwinski angle changed from about 1.2–1.3 to 0.2. One of the two bunches colliding in IP8 also collided in IPs 1 and 5, increasing its tune spread. A Piwinski angle of 1.2 is the biggest value ever achieved in a hadron collider. The goal of this experiemnt had been to investigate the influence of this parameter on the luminosity lifetime, beam lifetime and emittance growth rate. Due to technical problems and unavailability of luminosity signals from CMS this goal was only partially accomplished.CERN-ATS-Note-2012-091 MDoai:cds.cern.ch:14930622012-11-09
spellingShingle Accelerators and Storage Rings
Abelleira, J L
Buffat, X
Bhat, C
Cornelis, K
De Maria, R
Fartoukh, S
Giachino, R
Holzer, E B
Lamont, M
Mastoridis, T
Macpherson, A
Papotti, G
Pieloni, T
Roncarolo, F
Roy, G
Salvachua, B
Valuch, D
Zimmermann, F
Ohmi, K
Large Piwinski angle
title Large Piwinski angle
title_full Large Piwinski angle
title_fullStr Large Piwinski angle
title_full_unstemmed Large Piwinski angle
title_short Large Piwinski angle
title_sort large piwinski angle
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1493062
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AT buffatx largepiwinskiangle
AT bhatc largepiwinskiangle
AT cornelisk largepiwinskiangle
AT demariar largepiwinskiangle
AT fartoukhs largepiwinskiangle
AT giachinor largepiwinskiangle
AT holzereb largepiwinskiangle
AT lamontm largepiwinskiangle
AT mastoridist largepiwinskiangle
AT macphersona largepiwinskiangle
AT papottig largepiwinskiangle
AT pielonit largepiwinskiangle
AT roncarolof largepiwinskiangle
AT royg largepiwinskiangle
AT salvachuab largepiwinskiangle
AT valuchd largepiwinskiangle
AT zimmermannf largepiwinskiangle
AT ohmik largepiwinskiangle

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