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Absolute momentum calibration of the HARP TPC

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Absolute momentum calibration of the HARP TPC

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dc.contributor.author	HARP Collaboration
dc.contributor.author	Catanesi, Maria Gabriella
dc.contributor.author	Burguet Castell, Jordi
dc.contributor.author	Cervera Villanueva, Anselmo
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Martín-Albo Simón, Justo
dc.contributor.author	Novella Garijo, Pau
dc.contributor.author	Sorel, Michel
dc.date.accessioned	2015-12-21T10:49:46Z
dc.date.available	2015-12-21T10:49:46Z
dc.date.issued	2008
dc.identifier.citation	HARP Collaboration Catanesi, Maria Gabriella Burguet Castell, Jordi Cervera Villanueva, Anselmo Gómez Cadenas, Juan José Martín-Albo Simón, Justo Novella Garijo, Pau Sorel, Michel 2008 Absolute momentum calibration of the HARP TPC Journal Of Instrumentation 3 P04007
dc.identifier.uri	http://hdl.handle.net/10550/49662
dc.description.abstract	In the HARP experiment the large-angle spectrometer is using a cylindrical TPC as main tracking and particle identification detector. The momentum scale of reconstructed tracks in the TPC is the most important systematic error for the majority of kinematic bins used for the HARP measurements of the double-differential production cross-section of charged pions in proton interactions on nuclear targets at large angle. The HARP TPC operated with a number of hardware shortfalls and operational mistakes. Thus it was important to control and characterize its momentum calibration. While it was not possible to enter a direct particle beam into the sensitive volume of the TPC to calibrate the detector, a set of physical processes and detector properties were exploited to achieve a precise calibration of the apparatus. In the following we recall the main issues concerning the momentum measurement in the HARP TPC, and describe the cross-checks made to validate the momentum scale. As a conclusion, this analysis demonstrates that the measurement of momentum is correct within the published precision of 3%.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Instrumentation, 2008, vol. 3, p. P04007
dc.subject	Física
dc.title	Absolute momentum calibration of the HARP TPC
dc.type	journal article	es_ES
dc.date.updated	2015-12-21T10:49:46Z
dc.identifier.doi	10.1088/1748-0221/3/04/P04007
dc.identifier.idgrec	069887
dc.rights.accessRights	open access	es_ES