Mapping the material in the LHCb vertex locator using secondary hadronic interactions

M. Alexander; W. Barter; A. Bay; L. J. Bel; M. Van Beuzekom; G. Bogdanova; S. Borghi; T. J.V. Bowcock; E. Buchanan; J. Buytaert; K. Carvalho Akiba; S. Chen; V. Coco; P. Collins; A. Crocombe; F. Da Cunha Marinho; E. Dall'Occo; S. De Capua; C. T. Dean; F. Dettori; D. Dossett; K. Dreimanis; G. Dujany; L. Eklund; T. Evans; M. Ferro-Luzzi; M. Gersabeck; T. Gershon; T. Hadavizadeh; J. Harrison; K. Hennessy; W. Hulsbergen; D. Hutchcroft; P. Ilten; E. Jans; M. John; P. Kopciewicz; P. Koppenburg; G. Lafferty; T. Latham; A. Leflat; M. W. Majewski; R. McNulty; J. Mylroie-Smith; A. Oblakowska-Mucha; C. Parkes; A. Pearce; A. Poluektov; A. Pritchard; W. Qian; S. Redford; S. Richards; K. Rinnert; E. Rodrigues; G. Sarpis; M. Schiller; H. Schindler; M. Smith; N. A. Smith; T. Szumlak; J. J. Velthuis; V. Volkov; C. Wallace; H. M. Wark; A. Webber; M. R.J. Williams; M. Williams

doi:10.1088/1748-0221/13/06/P06008

Mapping the material in the LHCb vertex locator using secondary hadronic interactions

M. Alexander, W. Barter, A. Bay, L. J. Bel, M. Van Beuzekom, G. Bogdanova, S. Borghi, T. J.V. Bowcock, E. Buchanan, J. Buytaert, K. Carvalho Akiba, S. Chen, V. Coco, P. Collins, A. Crocombe, F. Da Cunha Marinho, E. Dall'Occo, S. De Capua, C. T. Dean, F. DettoriD. Dossett, K. Dreimanis, G. Dujany, L. Eklund, T. Evans, M. Ferro-Luzzi, M. Gersabeck, T. Gershon, T. Hadavizadeh, J. Harrison, K. Hennessy, W. Hulsbergen, D. Hutchcroft, P. Ilten, E. Jans, M. John, P. Kopciewicz, P. Koppenburg, G. Lafferty, T. Latham, A. Leflat, M. W. Majewski, R. McNulty, J. Mylroie-Smith, A. Oblakowska-Mucha, C. Parkes, A. Pearce, A. Poluektov, A. Pritchard, W. Qian, S. Redford, S. Richards, K. Rinnert, E. Rodrigues, G. Sarpis, M. Schiller, H. Schindler, M. Smith, N. A. Smith, T. Szumlak, J. J. Velthuis, V. Volkov, C. Wallace, H. M. Wark, A. Webber, M. R.J. Williams, M. Williams^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal)

6 Citations (Scopus)

311 Downloads (Pure)

Abstract

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.

Original language	English
Article number	P06008
Number of pages	13
Journal	Journal of Instrumentation
Volume	13
Issue number	6
Early online date	13 Jun 2018
DOIs	https://doi.org/10.1088/1748-0221/13/06/P06008
Publication status	Published - Jun 2018

Keywords

Particle tracking detectors
Performance of High Energy Physics Detectors

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Alexander, M., Barter, W., Bay, A., Bel, L. J., Beuzekom, M. V., Bogdanova, G., Borghi, S., Bowcock, T. J. V., Buchanan, E., Buytaert, J., Akiba, K. C., Chen, S., Coco, V., Collins, P., Crocombe, A., Marinho, F. D. C., Dall'Occo, E., Capua, S. D., Dean, C. T., ... Williams, M. (2018). Mapping the material in the LHCb vertex locator using secondary hadronic interactions. Journal of Instrumentation, 13(6), [P06008]. https://doi.org/10.1088/1748-0221/13/06/P06008

Alexander, M. ; Barter, W. ; Bay, A. ; Bel, L. J. ; Beuzekom, M. Van ; Bogdanova, G. ; Borghi, S. ; Bowcock, T. J.V. ; Buchanan, E. ; Buytaert, J. ; Akiba, K. Carvalho ; Chen, S. ; Coco, V. ; Collins, P. ; Crocombe, A. ; Marinho, F. Da Cunha ; Dall'Occo, E. ; Capua, S. De ; 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. In: Journal of Instrumentation. 2018 ; Vol. 13, No. 6.

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title = "Mapping the material in the LHCb vertex locator using secondary hadronic interactions",

abstract = "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.",

keywords = "Particle tracking detectors, Performance of High Energy Physics Detectors",

author = "M. Alexander and W. Barter and A. Bay and Bel, {L. J.} and Beuzekom, {M. Van} and G. Bogdanova and S. Borghi and Bowcock, {T. J.V.} and E. Buchanan and J. Buytaert and Akiba, {K. Carvalho} and S. Chen and V. Coco and P. Collins and A. Crocombe and Marinho, {F. Da Cunha} and E. Dall'Occo and Capua, {S. De} and Dean, {C. T.} and F. Dettori and D. Dossett and K. Dreimanis and G. Dujany and L. Eklund and T. Evans and M. Ferro-Luzzi and M. Gersabeck and T. Gershon and T. Hadavizadeh and J. Harrison and K. Hennessy and W. Hulsbergen and D. Hutchcroft and P. Ilten and E. Jans and M. John and P. Kopciewicz and P. Koppenburg and G. Lafferty and T. Latham and A. Leflat and Majewski, {M. W.} and R. McNulty and J. Mylroie-Smith and A. Oblakowska-Mucha and C. Parkes and A. Pearce and A. Poluektov and A. Pritchard and W. Qian and S. Redford and S. Richards and K. Rinnert and E. Rodrigues and G. Sarpis and M. Schiller and H. Schindler and M. Smith and Smith, {N. A.} and T. Szumlak and Velthuis, {J. J.} and V. Volkov and C. Wallace and Wark, {H. M.} and A. Webber and Williams, {M. R.J.} and M. Williams",

year = "2018",

month = jun,

doi = "10.1088/1748-0221/13/06/P06008",

language = "English",

volume = "13",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing",

number = "6",

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Alexander, M, Barter, W, Bay, A, Bel, LJ, Beuzekom, MV, Bogdanova, G, Borghi, S, Bowcock, TJV, Buchanan, E, Buytaert, J, Akiba, KC, Chen, S, Coco, V, Collins, P, Crocombe, A, Marinho, FDC, Dall'Occo, E, Capua, SD, Dean, CT, 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, MW, 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, NA, Szumlak, T, Velthuis, JJ, Volkov, V, Wallace, C, Wark, HM, Webber, A, Williams, MRJ & Williams, M 2018, 'Mapping the material in the LHCb vertex locator using secondary hadronic interactions', Journal of Instrumentation, vol. 13, no. 6, P06008. https://doi.org/10.1088/1748-0221/13/06/P06008

Mapping the material in the LHCb vertex locator using secondary hadronic interactions. / Alexander, M.; Barter, W.; Bay, A.; Bel, L. J.; Beuzekom, M. Van; Bogdanova, G.; Borghi, S.; Bowcock, T. J.V.; Buchanan, E.; Buytaert, J.; Akiba, K. Carvalho; Chen, S.; Coco, V.; Collins, P.; Crocombe, A.; Marinho, F. Da Cunha; Dall'Occo, E.; Capua, S. De; 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.

In: Journal of Instrumentation, Vol. 13, No. 6, P06008, 06.2018.

Research output: Contribution to journal › Article (Academic Journal)

TY - JOUR

T1 - Mapping the material in the LHCb vertex locator using secondary hadronic interactions

AU - Alexander, M.

AU - Barter, W.

AU - Bay, A.

AU - Bel, L. J.

AU - Beuzekom, M. Van

AU - Bogdanova, G.

AU - Borghi, S.

AU - Bowcock, T. J.V.

AU - Buchanan, E.

AU - Buytaert, J.

AU - Akiba, K. Carvalho

AU - Chen, S.

AU - Coco, V.

AU - Collins, P.

AU - Crocombe, A.

AU - Marinho, F. Da Cunha

AU - Dall'Occo, E.

AU - Capua, S. De

AU - Dean, C. T.

AU - Dettori, F.

AU - Dossett, D.

AU - Dreimanis, K.

AU - Dujany, G.

AU - Eklund, L.

AU - Evans, T.

AU - Ferro-Luzzi, M.

AU - Gersabeck, M.

AU - Gershon, T.

AU - Hadavizadeh, T.

AU - Harrison, J.

AU - Hennessy, K.

AU - Hulsbergen, W.

AU - Hutchcroft, D.

AU - Ilten, P.

AU - Jans, E.

AU - John, M.

AU - Kopciewicz, P.

AU - Koppenburg, P.

AU - Lafferty, G.

AU - Latham, T.

AU - Leflat, A.

AU - Majewski, M. W.

AU - McNulty, R.

AU - Mylroie-Smith, J.

AU - Oblakowska-Mucha, A.

AU - Parkes, C.

AU - Pearce, A.

AU - Poluektov, A.

AU - Pritchard, A.

AU - Qian, W.

AU - Redford, S.

AU - Richards, S.

AU - Rinnert, K.

AU - Rodrigues, E.

AU - Sarpis, G.

AU - Schiller, M.

AU - Schindler, H.

AU - Smith, M.

AU - Smith, N. A.

AU - Szumlak, T.

AU - Velthuis, J. J.

AU - Volkov, V.

AU - Wallace, C.

AU - Wark, H. M.

AU - Webber, A.

AU - Williams, M. R.J.

AU - Williams, M.

PY - 2018/6

Y1 - 2018/6

N2 - 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.

AB - 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.

KW - Particle tracking detectors

KW - Performance of High Energy Physics Detectors

UR - http://www.scopus.com/inward/record.url?scp=85049737061&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/13/06/P06008

DO - 10.1088/1748-0221/13/06/P06008

M3 - Article (Academic Journal)

AN - SCOPUS:85049737061

VL - 13

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 6

M1 - P06008

ER -