CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron

Standard

CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders. / Longo, S.; Roney, J. M.; Cecchi, C. et al.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 982, 164562, 01.12.2020.

Research output: Contribution to journal › Article › peer-review

Harvard

Longo, S, Roney, JM, Cecchi, C, Cunliffe, S, Ferber, T, Hayashii, H, Hearty, C, Hershenhorn, A, Kuzmin, A, Manoni, E, Meier, F, Miyabayashi, K, Nakamura, I, Remnev, M, Sibidanov, A, Unno, Y, Usov, Y & Zhulanov, V 2020, 'CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 982, 164562. https://doi.org/10.1016/j.nima.2020.164562

APA

Longo, S., Roney, J. M., Cecchi, C., Cunliffe, S., Ferber, T., Hayashii, H., Hearty, C., Hershenhorn, A., Kuzmin, A., Manoni, E., Meier, F., Miyabayashi, K., Nakamura, I., Remnev, M., Sibidanov, A., Unno, Y., Usov, Y., & Zhulanov, V. (2020). CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 982, [164562]. https://doi.org/10.1016/j.nima.2020.164562

Vancouver

Longo S, Roney JM, Cecchi C, Cunliffe S, Ferber T, Hayashii H et al. CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2020 Dec 1;982:164562. doi: 10.1016/j.nima.2020.164562

Author

Longo, S. ; Roney, J. M. ; Cecchi, C. et al. / CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2020 ; Vol. 982.

BibTeX

@article{98de93926d234ace84d8b380368fec46,

title = "CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders",

abstract = "This paper describes the implementation and performance of CsI(Tl) pulse shape discrimination for the Belle II electromagnetic calorimeter, representing the first application of CsI(Tl) pulse shape discrimination for particle identification at an electron–positron collider. The pulse shape characterization algorithms applied by the Belle II calorimeter are described. Control samples of γ, μ+, π±, K± and p∕{\=p} are used to demonstrate the significant insight into the secondary particle composition of calorimeter clusters that is provided by CsI(Tl) pulse shape discrimination. Comparisons with simulation are presented and provide further validation for newly developed CsI(Tl) scintillation response simulation techniques, which when incorporated with GEANT4 simulations allow the particle dependent scintillation response of CsI(Tl) to be modelled. Comparisons between data and simulation also demonstrate that pulse shape discrimination can be a new tool to identify sources of improvement in the simulation of hadronic interactions in materials. The KL0 efficiency and photon-as-hadron fake-rate of a multivariate classifier that is trained to use pulse shape discrimination is presented and comparisons are made to a shower-shape based approach. CsI(Tl) pulse shape discrimination is shown to reduce the photon-as-hadron fake-rate by over a factor of 3 at photon energies of 0.2 GeV and over a factor 10 at photon energies of 1 GeV.",

keywords = "Belle II, Calorimeters, GEANT4, Particle identification, Pulse shape discrimination, Thallium doped cesium iodide, ENERGY",

author = "S. Longo and Roney, {J. M.} and C. Cecchi and S. Cunliffe and T. Ferber and H. Hayashii and C. Hearty and A. Hershenhorn and A. Kuzmin and E. Manoni and F. Meier and K. Miyabayashi and I. Nakamura and M. Remnev and A. Sibidanov and Y. Unno and Y. Usov and V. Zhulanov",

year = "2020",

month = dec,

day = "1",

doi = "10.1016/j.nima.2020.164562",

language = "English",

volume = "982",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - CsI(Tl) pulse shape discrimination with the Belle II electromagnetic calorimeter as a novel method to improve particle identification at electron–positron colliders

AU - Longo, S.

AU - Roney, J. M.

AU - Cecchi, C.

AU - Cunliffe, S.

AU - Ferber, T.

AU - Hayashii, H.

AU - Hearty, C.

AU - Hershenhorn, A.

AU - Kuzmin, A.

AU - Manoni, E.

AU - Meier, F.

AU - Miyabayashi, K.

AU - Nakamura, I.

AU - Remnev, M.

AU - Sibidanov, A.

AU - Unno, Y.

AU - Usov, Y.

AU - Zhulanov, V.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - This paper describes the implementation and performance of CsI(Tl) pulse shape discrimination for the Belle II electromagnetic calorimeter, representing the first application of CsI(Tl) pulse shape discrimination for particle identification at an electron–positron collider. The pulse shape characterization algorithms applied by the Belle II calorimeter are described. Control samples of γ, μ+, π±, K± and p∕p̄ are used to demonstrate the significant insight into the secondary particle composition of calorimeter clusters that is provided by CsI(Tl) pulse shape discrimination. Comparisons with simulation are presented and provide further validation for newly developed CsI(Tl) scintillation response simulation techniques, which when incorporated with GEANT4 simulations allow the particle dependent scintillation response of CsI(Tl) to be modelled. Comparisons between data and simulation also demonstrate that pulse shape discrimination can be a new tool to identify sources of improvement in the simulation of hadronic interactions in materials. The KL0 efficiency and photon-as-hadron fake-rate of a multivariate classifier that is trained to use pulse shape discrimination is presented and comparisons are made to a shower-shape based approach. CsI(Tl) pulse shape discrimination is shown to reduce the photon-as-hadron fake-rate by over a factor of 3 at photon energies of 0.2 GeV and over a factor 10 at photon energies of 1 GeV.

AB - This paper describes the implementation and performance of CsI(Tl) pulse shape discrimination for the Belle II electromagnetic calorimeter, representing the first application of CsI(Tl) pulse shape discrimination for particle identification at an electron–positron collider. The pulse shape characterization algorithms applied by the Belle II calorimeter are described. Control samples of γ, μ+, π±, K± and p∕p̄ are used to demonstrate the significant insight into the secondary particle composition of calorimeter clusters that is provided by CsI(Tl) pulse shape discrimination. Comparisons with simulation are presented and provide further validation for newly developed CsI(Tl) scintillation response simulation techniques, which when incorporated with GEANT4 simulations allow the particle dependent scintillation response of CsI(Tl) to be modelled. Comparisons between data and simulation also demonstrate that pulse shape discrimination can be a new tool to identify sources of improvement in the simulation of hadronic interactions in materials. The KL0 efficiency and photon-as-hadron fake-rate of a multivariate classifier that is trained to use pulse shape discrimination is presented and comparisons are made to a shower-shape based approach. CsI(Tl) pulse shape discrimination is shown to reduce the photon-as-hadron fake-rate by over a factor of 3 at photon energies of 0.2 GeV and over a factor 10 at photon energies of 1 GeV.

KW - Belle II

KW - Calorimeters

KW - GEANT4

KW - Particle identification

KW - Pulse shape discrimination

KW - Thallium doped cesium iodide

KW - ENERGY

UR - http://www.scopus.com/inward/record.url?scp=85090132360&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2020.164562

DO - 10.1016/j.nima.2020.164562

M3 - Article

AN - SCOPUS:85090132360

VL - 982

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

M1 - 164562

ER -

ID: 25283126