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Mapping the material in the LHCb vertex locator using secondary hadronic interactions
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1748-0221/13/06/P06008 http://cds.cern.ch/record/2309964 |
| _version_ | 1780957797552226304 |
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| author | Alexander, M. Barter, W. Bay, A. Bel, L.J. van Beuzekom, M. Bogdanova, G. Borghi, S. Bowcock, T.J.V. Buchanan, E. Buytaert, J. Carvalho Akiba, K. Chen, S. Coco, V. Collins, P. Crocombe, A. Da Cunha Marinho, F. Dall'Occo, E. De Capua, S. Dean, C.T. Dettori, F. Dossett, D. Dreimanis, K. Dujany, G. Eklund, L. Evans, T. Ferro-Luzzi, M. Gersabeck, M. Gershon, T. Hadavizadeh, T. Harrison, J. Hennessy, K. Hulsbergen, W. Hutchcroft, D. Ilten, P. Jans, E. John, M. Kopciewicz, P. Koppenburg, P. Lafferty, G. Latham, T. Leflat, A. Majewski, M.W. McNulty, R. Mylroie-Smith, J. Oblakowska-Mucha, A. Parkes, C. Pearce, A. Poluektov, A. Pritchard, A. Qian, W. Redford, S. Richards, S. Rinnert, K. Rodrigues, E. Sarpis, G. Schiller, M. Schindler, H. Smith, M. Smith, N.A. Szumlak, T. Velthuis, J.J. Volkov, V. Wallace, C. Wark, H.M. Webber, A. Williams, M.R.J. Williams, M. |
| author_facet | Alexander, M. Barter, W. Bay, A. Bel, L.J. van Beuzekom, M. Bogdanova, G. Borghi, S. Bowcock, T.J.V. Buchanan, E. Buytaert, J. Carvalho Akiba, K. Chen, S. Coco, V. Collins, P. Crocombe, A. Da Cunha Marinho, F. Dall'Occo, E. De Capua, S. Dean, C.T. Dettori, F. Dossett, D. Dreimanis, K. Dujany, G. Eklund, L. Evans, T. Ferro-Luzzi, M. Gersabeck, M. Gershon, T. Hadavizadeh, T. Harrison, J. Hennessy, K. Hulsbergen, W. Hutchcroft, D. Ilten, P. Jans, E. John, M. Kopciewicz, P. Koppenburg, P. Lafferty, G. Latham, T. Leflat, A. Majewski, M.W. McNulty, R. Mylroie-Smith, J. Oblakowska-Mucha, A. Parkes, C. Pearce, A. Poluektov, A. Pritchard, A. Qian, W. Redford, S. Richards, S. Rinnert, K. Rodrigues, E. Sarpis, G. Schiller, M. Schindler, H. Smith, M. Smith, N.A. Szumlak, T. Velthuis, J.J. Volkov, V. Wallace, C. Wark, H.M. Webber, A. Williams, M.R.J. Williams, M. |
| author_sort | Alexander, M. |
| collection | CERN |
| description | Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. Using this material map, along with properties of a reconstructed secondary vertex and its constituent tracks, a p-value can be assigned to the hypothesis that the secondary vertex originates from a material interaction. A validation of this procedure is presented using photon conversions to dimuons. |
| id | cern-2309964 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2018 |
| record_format | invenio |
| spelling | cern-23099642023-04-20T02:24:25Zdoi:10.1088/1748-0221/13/06/P06008http://cds.cern.ch/record/2309964engAlexander, M.Barter, W.Bay, A.Bel, L.J.van Beuzekom, M.Bogdanova, G.Borghi, S.Bowcock, T.J.V.Buchanan, E.Buytaert, J.Carvalho Akiba, K.Chen, S.Coco, V.Collins, P.Crocombe, A.Da Cunha Marinho, F.Dall'Occo, E.De Capua, S.Dean, C.T.Dettori, F.Dossett, D.Dreimanis, K.Dujany, G.Eklund, L.Evans, T.Ferro-Luzzi, M.Gersabeck, M.Gershon, T.Hadavizadeh, T.Harrison, J.Hennessy, K.Hulsbergen, W.Hutchcroft, D.Ilten, P.Jans, E.John, M.Kopciewicz, P.Koppenburg, P.Lafferty, G.Latham, T.Leflat, A.Majewski, M.W.McNulty, R.Mylroie-Smith, J.Oblakowska-Mucha, A.Parkes, C.Pearce, A.Poluektov, A.Pritchard, A.Qian, W.Redford, S.Richards, S.Rinnert, K.Rodrigues, E.Sarpis, G.Schiller, M.Schindler, H.Smith, M.Smith, N.A.Szumlak, T.Velthuis, J.J.Volkov, V.Wallace, C.Wark, H.M.Webber, A.Williams, M.R.J.Williams, M.Mapping the material in the LHCb vertex locator using secondary hadronic interactionshep-exParticle Physics - Experimentphysics.ins-detDetectors and Experimental TechniquesPrecise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. Using this material map, along with properties of a reconstructed secondary vertex and its constituent tracks, a p-value can be assigned to the hypothesis that the secondary vertex originates from a material interaction. A validation of this procedure is presented using photon conversions to dimuons.Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identifying jets that originate from beauty and charm quarks. Secondary interactions of hadrons produced in beam-gas collisions are used to map the location of material in the VELO. Using this material map, along with properties of a reconstructed secondary vertex and its constituent tracks, a $p$-value can be assigned to the hypothesis that the secondary vertex originates from a material interaction. A validation of this procedure is presented using photon conversions to dimuons.arXiv:1803.07466CERN-LHCb-DP-2018-002CERN-LHCB-DP-2018-002oai:cds.cern.ch:23099642018-03-20 |
| spellingShingle | hep-ex Particle Physics - Experiment physics.ins-det Detectors and Experimental Techniques Alexander, M. Barter, W. Bay, A. Bel, L.J. van Beuzekom, M. Bogdanova, G. Borghi, S. Bowcock, T.J.V. Buchanan, E. Buytaert, J. Carvalho Akiba, K. Chen, S. Coco, V. Collins, P. Crocombe, A. Da Cunha Marinho, F. Dall'Occo, E. De Capua, S. Dean, C.T. Dettori, F. Dossett, D. Dreimanis, K. Dujany, G. Eklund, L. Evans, T. Ferro-Luzzi, M. Gersabeck, M. Gershon, T. Hadavizadeh, T. Harrison, J. Hennessy, K. Hulsbergen, W. Hutchcroft, D. Ilten, P. Jans, E. John, M. Kopciewicz, P. Koppenburg, P. Lafferty, G. Latham, T. Leflat, A. Majewski, M.W. McNulty, R. Mylroie-Smith, J. Oblakowska-Mucha, A. Parkes, C. Pearce, A. Poluektov, A. Pritchard, A. Qian, W. Redford, S. Richards, S. Rinnert, K. Rodrigues, E. Sarpis, G. Schiller, M. Schindler, H. Smith, M. Smith, N.A. Szumlak, T. Velthuis, J.J. Volkov, V. Wallace, C. Wark, H.M. Webber, A. Williams, M.R.J. Williams, M. Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title | Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title_full | Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title_fullStr | Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title_full_unstemmed | Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title_short | Mapping the material in the LHCb vertex locator using secondary hadronic interactions |
| title_sort | mapping the material in the lhcb vertex locator using secondary hadronic interactions |
| topic | hep-ex Particle Physics - Experiment physics.ins-det Detectors and Experimental Techniques |
| url | https://dx.doi.org/10.1088/1748-0221/13/06/P06008 http://cds.cern.ch/record/2309964 |
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