Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector

K. Aivazelis; D. Attié; P. Billoir; A. Blanchet; G. Bortolato; S. Bolognesi; R. Boullon; N. F. Calabria; D. Calvet; M. P. Casado; M. G. Catanesi; M. Cicerchia; G. Cogo; G. Collazuol; P. Colas; D. Cotte; D. D'Ago; C. Dalmazzone; T. Daret; R. de Oliveira; A. Delbart; J. Dumarchez; K. Dygnarowicz; S. Emery-Schrenk; A. Ershova; G. Eurin; M. Feltre; C. Forza; A. N.Gacino Olmedo; A. Gambalonga; C. Giganti; F. Gramegna; P. Granger; R. Guida; M. Guigue; S. Hassani; D. Henaff; F. Iacob; C. Jesús-Valls; S. Joshi; R. Kurjata; M. Lamoureux; J. F. Laporte; M. Lehuraux; S. Levorato; A. Longhin; T. Lux; L. Magaletti; T. Marchi; D. Marchesini; L. Mareso; M. Mattiazzi; M. Mezzetto; B. Mehl; E. Miller; L. Mellet; L. Munteanu; Q. V. Nguyen; N. Ospina; Y. Orain; R. Palumbo; C. Pastore; J. M. Parraud; E. Pierre; C. Pio; O. Pizzirusso; B. Popov; F. Pupilli; E. Radicioni; Ch Riccio; L. Rinaldi; F. Rossi; S. Roth; L. Russo; S. Russo; A. Rychter; W. Saenz Arevalo; L. Scomparin; Ph Schune; D. Smyczek; R. Spina; J. Steinmann; S. Suvorov; N. Thamm; D. Terront; A. Teixeira; F. Toussenel; V. Valentino; D. Vargas; M. Varghese; G. Vasseur; C. Vuillemin; U. Virginet; Ch Winterstein; U. Yevarouskaya; M. Ziembicki; M. Zito

doi:10.1016/j.nima.2026.171527

Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector

K. Aivazelis
, D. Attié
, P. Billoir
, A. Blanchet
, G. Bortolato
, S. Bolognesi
, R. Boullon
, N. F. Calabria
, D. Calvet
, M. P. Casado
, M. G. Catanesi
, M. Cicerchia
, G. Cogo
, G. Collazuol
, P. Colas
, D. Cotte
, D. D'Ago
, C. Dalmazzone
, T. Daret
, R. de Oliveira

A. Delbart, J. Dumarchez, K. Dygnarowicz, S. Emery-Schrenk, A. Ershova, G. Eurin, M. Feltre, C. Forza, A. N.Gacino Olmedo, A. Gambalonga, C. Giganti, F. Gramegna, P. Granger, R. Guida, M. Guigue, S. Hassani, D. Henaff, F. Iacob, C. Jesús-Valls, S. Joshi, R. Kurjata, M. Lamoureux, J. F. Laporte, M. Lehuraux, S. Levorato, A. Longhin, T. Lux, L. Magaletti, T. Marchi, D. Marchesini, L. Mareso, M. Mattiazzi, M. Mezzetto, B. Mehl, E. Miller, L. Mellet, L. Munteanu, Q. V. Nguyen, N. Ospina, Y. Orain, R. Palumbo, C. Pastore, J. M. Parraud, E. Pierre, C. Pio, O. Pizzirusso, B. Popov, F. Pupilli, E. Radicioni, Ch Riccio, L. Rinaldi, F. Rossi, S. Roth, L. Russo, S. Russo, A. Rychter, W. Saenz Arevalo, L. Scomparin, Ph Schune, D. Smyczek, R. Spina, J. Steinmann, S. Suvorov, N. Thamm, D. Terront, A. Teixeira, F. Toussenel, V. Valentino, D. Vargas, M. Varghese, G. Vasseur, C. Vuillemin, U. Virginet, Ch Winterstein, U. Yevarouskaya, M. Ziembicki, M. Zito

Physics and Astronomy

Université Paris-Saclay
Sorbonne Université
National Institute for Nuclear Physics
Polytechnic University of Bari
Institute for High Energy Physics
CERN
Warsaw University of Technology
Laboratori Nazionali di Legnaro
RWTH Aachen University

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

Abstract

The off-axis magnetic near detector ND280 of the T2K experiment has been upgraded with two new high-angle Time Projection Chambers (HA-TPCs) based on resistive Micromegas technology and lightweight composite field cages. The design and implementation of the detectors and their subsystems, including the gas system, gas monitoring chambers, and data acquisition, are presented. The HA-TPCs were successfully constructed, integrated, and commissioned, meeting all mechanical and electrical specifications. Electric field studies, supported by a validated three-dimensional model, enabled the characterization and correction of local field distortions, ensuring reliable momentum reconstruction. Performances of the HA-TPCs are evaluated using cosmic ray and neutrino beam data and compared to Monte Carlo simulations. Good agreement is observed. Spatial resolution better than 800 µm and ionization energy loss (dE/dx) resolution below 10% are achieved. These results demonstrate that the HA-TPCs satisfy the design requirements and provide the tracking precision and particle identification capabilities required for the near detector upgrade and T2K physics goals.

Original language	English
Article number	171527
Journal	Nuclear Inst. and Methods in Physics Research, A
Volume	1088
DOIs	https://doi.org/10.1016/j.nima.2026.171527
State	Published - Aug 2026

Keywords

Field cage
Resistive micromegas
Spatial and momentum resolution
Time projection chambers
dE/dx resolution

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10.1016/j.nima.2026.171527

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Aivazelis, K., Attié, D., Billoir, P., Blanchet, A., Bortolato, G., Bolognesi, S., Boullon, R., Calabria, N. F., Calvet, D., Casado, M. P., Catanesi, M. G., Cicerchia, M., Cogo, G., Collazuol, G., Colas, P., Cotte, D., D'Ago, D., Dalmazzone, C., Daret, T., ... Zito, M. (2026). Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector. Nuclear Inst. and Methods in Physics Research, A, 1088, Article 171527. https://doi.org/10.1016/j.nima.2026.171527

@article{c04979a332354ad0ab655443224cb46a,

title = "Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector",

abstract = "The off-axis magnetic near detector ND280 of the T2K experiment has been upgraded with two new high-angle Time Projection Chambers (HA-TPCs) based on resistive Micromegas technology and lightweight composite field cages. The design and implementation of the detectors and their subsystems, including the gas system, gas monitoring chambers, and data acquisition, are presented. The HA-TPCs were successfully constructed, integrated, and commissioned, meeting all mechanical and electrical specifications. Electric field studies, supported by a validated three-dimensional model, enabled the characterization and correction of local field distortions, ensuring reliable momentum reconstruction. Performances of the HA-TPCs are evaluated using cosmic ray and neutrino beam data and compared to Monte Carlo simulations. Good agreement is observed. Spatial resolution better than 800 µm and ionization energy loss (dE/dx) resolution below 10\% are achieved. These results demonstrate that the HA-TPCs satisfy the design requirements and provide the tracking precision and particle identification capabilities required for the near detector upgrade and T2K physics goals.",

keywords = "Field cage, Resistive micromegas, Spatial and momentum resolution, Time projection chambers, dE/dx resolution",

author = "K. Aivazelis and D. Atti{\'e} and P. Billoir and A. Blanchet and G. Bortolato and S. Bolognesi and R. Boullon and Calabria, \{N. F.\} and D. Calvet and Casado, \{M. P.\} and Catanesi, \{M. G.\} and M. Cicerchia and G. Cogo and G. Collazuol and P. Colas and D. Cotte and D. D'Ago and C. Dalmazzone and T. Daret and \{de Oliveira\}, R. and A. Delbart and J. Dumarchez and K. Dygnarowicz and S. Emery-Schrenk and A. Ershova and G. Eurin and M. Feltre and C. Forza and Olmedo, \{A. N.Gacino\} and A. Gambalonga and C. Giganti and F. Gramegna and P. Granger and R. Guida and M. Guigue and S. Hassani and D. Henaff and F. Iacob and C. Jes{\'u}s-Valls and S. Joshi and R. Kurjata and M. Lamoureux and Laporte, \{J. F.\} and M. Lehuraux and S. Levorato and A. Longhin and T. Lux and L. Magaletti and T. Marchi and D. Marchesini and L. Mareso and M. Mattiazzi and M. Mezzetto and B. Mehl and E. Miller and L. Mellet and L. Munteanu and Nguyen, \{Q. V.\} and N. Ospina and Y. Orain and R. Palumbo and C. Pastore and Parraud, \{J. M.\} and E. Pierre and C. Pio and O. Pizzirusso and B. Popov and F. Pupilli and E. Radicioni and Ch Riccio and L. Rinaldi and F. Rossi and S. Roth and L. Russo and S. Russo and A. Rychter and \{Saenz Arevalo\}, W. and L. Scomparin and Ph Schune and D. Smyczek and R. Spina and J. Steinmann and S. Suvorov and N. Thamm and D. Terront and A. Teixeira and F. Toussenel and V. Valentino and D. Vargas and M. Varghese and G. Vasseur and C. Vuillemin and U. Virginet and Ch Winterstein and U. Yevarouskaya and M. Ziembicki and M. Zito",

note = "Publisher Copyright: {\textcopyright} 2026 Elsevier B.V.",

year = "2026",

month = aug,

doi = "10.1016/j.nima.2026.171527",

language = "English",

volume = "1088",

journal = "Nuclear Inst. and Methods in Physics Research, A",

issn = "0168-9002",

}

Aivazelis, K, Attié, D, Billoir, P, Blanchet, A, Bortolato, G, Bolognesi, S, Boullon, R, Calabria, NF, Calvet, D, Casado, MP, Catanesi, MG, Cicerchia, M, Cogo, G, Collazuol, G, Colas, P, Cotte, D, D'Ago, D, Dalmazzone, C, Daret, T, de Oliveira, R, Delbart, A, Dumarchez, J, Dygnarowicz, K, Emery-Schrenk, S, Ershova, A, Eurin, G, Feltre, M, Forza, C, Olmedo, ANG, Gambalonga, A, Giganti, C, Gramegna, F, Granger, P, Guida, R, Guigue, M, Hassani, S, Henaff, D, Iacob, F, Jesús-Valls, C, Joshi, S, Kurjata, R, Lamoureux, M, Laporte, JF, Lehuraux, M, Levorato, S, Longhin, A, Lux, T, Magaletti, L, Marchi, T, Marchesini, D, Mareso, L, Mattiazzi, M, Mezzetto, M, Mehl, B, Miller, E, Mellet, L, Munteanu, L, Nguyen, QV, Ospina, N, Orain, Y, Palumbo, R, Pastore, C, Parraud, JM, Pierre, E, Pio, C, Pizzirusso, O, Popov, B, Pupilli, F, Radicioni, E, Riccio, C, Rinaldi, L, Rossi, F, Roth, S, Russo, L, Russo, S, Rychter, A, Saenz Arevalo, W, Scomparin, L, Schune, P, Smyczek, D, Spina, R, Steinmann, J, Suvorov, S, Thamm, N, Terront, D, Teixeira, A, Toussenel, F, Valentino, V, Vargas, D, Varghese, M, Vasseur, G, Vuillemin, C, Virginet, U, Winterstein, C, Yevarouskaya, U, Ziembicki, M & Zito, M 2026, 'Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector', Nuclear Inst. and Methods in Physics Research, A, vol. 1088, 171527. https://doi.org/10.1016/j.nima.2026.171527

TY - JOUR

T1 - Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector

AU - Aivazelis, K.

AU - Attié, D.

AU - Billoir, P.

AU - Blanchet, A.

AU - Bortolato, G.

AU - Bolognesi, S.

AU - Boullon, R.

AU - Calabria, N. F.

AU - Calvet, D.

AU - Casado, M. P.

AU - Catanesi, M. G.

AU - Cicerchia, M.

AU - Cogo, G.

AU - Collazuol, G.

AU - Colas, P.

AU - Cotte, D.

AU - D'Ago, D.

AU - Dalmazzone, C.

AU - Daret, T.

AU - de Oliveira, R.

AU - Delbart, A.

AU - Dumarchez, J.

AU - Dygnarowicz, K.

AU - Emery-Schrenk, S.

AU - Ershova, A.

AU - Eurin, G.

AU - Feltre, M.

AU - Forza, C.

AU - Olmedo, A. N.Gacino

AU - Gambalonga, A.

AU - Giganti, C.

AU - Gramegna, F.

AU - Granger, P.

AU - Guida, R.

AU - Guigue, M.

AU - Hassani, S.

AU - Henaff, D.

AU - Iacob, F.

AU - Jesús-Valls, C.

AU - Joshi, S.

AU - Kurjata, R.

AU - Lamoureux, M.

AU - Laporte, J. F.

AU - Lehuraux, M.

AU - Levorato, S.

AU - Longhin, A.

AU - Lux, T.

AU - Magaletti, L.

AU - Marchi, T.

AU - Marchesini, D.

AU - Mareso, L.

AU - Mattiazzi, M.

AU - Mezzetto, M.

AU - Mehl, B.

AU - Miller, E.

AU - Mellet, L.

AU - Munteanu, L.

AU - Nguyen, Q. V.

AU - Ospina, N.

AU - Orain, Y.

AU - Palumbo, R.

AU - Pastore, C.

AU - Parraud, J. M.

AU - Pierre, E.

AU - Pio, C.

AU - Pizzirusso, O.

AU - Popov, B.

AU - Pupilli, F.

AU - Radicioni, E.

AU - Riccio, Ch

AU - Rinaldi, L.

AU - Rossi, F.

AU - Roth, S.

AU - Russo, L.

AU - Russo, S.

AU - Rychter, A.

AU - Saenz Arevalo, W.

AU - Scomparin, L.

AU - Schune, Ph

AU - Smyczek, D.

AU - Spina, R.

AU - Steinmann, J.

AU - Suvorov, S.

AU - Thamm, N.

AU - Terront, D.

AU - Teixeira, A.

AU - Toussenel, F.

AU - Valentino, V.

AU - Vargas, D.

AU - Varghese, M.

AU - Vasseur, G.

AU - Vuillemin, C.

AU - Virginet, U.

AU - Winterstein, Ch

AU - Yevarouskaya, U.

AU - Ziembicki, M.

AU - Zito, M.

PY - 2026/8

Y1 - 2026/8

N2 - The off-axis magnetic near detector ND280 of the T2K experiment has been upgraded with two new high-angle Time Projection Chambers (HA-TPCs) based on resistive Micromegas technology and lightweight composite field cages. The design and implementation of the detectors and their subsystems, including the gas system, gas monitoring chambers, and data acquisition, are presented. The HA-TPCs were successfully constructed, integrated, and commissioned, meeting all mechanical and electrical specifications. Electric field studies, supported by a validated three-dimensional model, enabled the characterization and correction of local field distortions, ensuring reliable momentum reconstruction. Performances of the HA-TPCs are evaluated using cosmic ray and neutrino beam data and compared to Monte Carlo simulations. Good agreement is observed. Spatial resolution better than 800 µm and ionization energy loss (dE/dx) resolution below 10% are achieved. These results demonstrate that the HA-TPCs satisfy the design requirements and provide the tracking precision and particle identification capabilities required for the near detector upgrade and T2K physics goals.

AB - The off-axis magnetic near detector ND280 of the T2K experiment has been upgraded with two new high-angle Time Projection Chambers (HA-TPCs) based on resistive Micromegas technology and lightweight composite field cages. The design and implementation of the detectors and their subsystems, including the gas system, gas monitoring chambers, and data acquisition, are presented. The HA-TPCs were successfully constructed, integrated, and commissioned, meeting all mechanical and electrical specifications. Electric field studies, supported by a validated three-dimensional model, enabled the characterization and correction of local field distortions, ensuring reliable momentum reconstruction. Performances of the HA-TPCs are evaluated using cosmic ray and neutrino beam data and compared to Monte Carlo simulations. Good agreement is observed. Spatial resolution better than 800 µm and ionization energy loss (dE/dx) resolution below 10% are achieved. These results demonstrate that the HA-TPCs satisfy the design requirements and provide the tracking precision and particle identification capabilities required for the near detector upgrade and T2K physics goals.

KW - Field cage

KW - Resistive micromegas

KW - Spatial and momentum resolution

KW - Time projection chambers

KW - dE/dx resolution

UR - https://www.scopus.com/pages/publications/105034573214

U2 - 10.1016/j.nima.2026.171527

DO - 10.1016/j.nima.2026.171527

M3 - Article

AN - SCOPUS:105034573214

SN - 0168-9002

VL - 1088

JO - Nuclear Inst. and Methods in Physics Research, A

JF - Nuclear Inst. and Methods in Physics Research, A

M1 - 171527

ER -

Performance of the high-angle time projection chambers in the upgraded T2K off-axis near detector

Abstract

Keywords

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