The xpDIRC concept for next-generation DIRC detectors

R. Dzhygadlo; J. Datta; K. Dehmelt; A. Deshpande; T. K. Hemmick; Md I. Hossain; C. E. Hyde; Y. Ilieva; G. Kalicy; W. J. Llope; P. Nadel-Turonski; C. Schwarz; J. Schwiening; N. Shankman; J. Stevens; N. Wickramaarachchi; C. Woody

doi:10.1016/j.nima.2026.171603

The xpDIRC concept for next-generation DIRC detectors

R. Dzhygadlo
, J. Datta
, K. Dehmelt
, A. Deshpande
, T. K. Hemmick
, Md I. Hossain
, C. E. Hyde
, Y. Ilieva
, G. Kalicy
, W. J. Llope
, P. Nadel-Turonski
, C. Schwarz
, J. Schwiening
, N. Shankman
, J. Stevens
, N. Wickramaarachchi
, C. Woody

Physics and Astronomy

GSI Helmholtz Centre for Heavy Ion Research
Catholic University of America
Old Dominion University
University of South Carolina
Wayne State University
Stony Brook University
College of William and Mary
Brookhaven National Laboratory

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

Abstract

The next-generation DIRC (xpDIRC) represents a novel detector geometry concept currently being developed for advanced particle identification systems in high-energy physics experiments. Building upon the high-performance DIRC (hpDIRC) designed for the ePIC detector at the Electron-Ion Collider, the xpDIRC introduces a hybrid optical architecture that combines enhanced focusing optics, a wide plate light guide, and a compact expansion volume. Comprehensive Geant4 simulations demonstrate that the xpDIRC hybrid geometry achieves state-of-the-art performance in π/K separation across the entire range of operation.

Original language	English
Article number	171603
Journal	Nuclear Inst. and Methods in Physics Research, A
Volume	1089
DOIs	https://doi.org/10.1016/j.nima.2026.171603
State	Published - Sep 2026

Keywords

Cherenkov counter
DIRC
Particle identification
Ring imaging

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10.1016/j.nima.2026.171603

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Dzhygadlo, R., Datta, J., Dehmelt, K., Deshpande, A., Hemmick, T. K., Hossain, M. I., Hyde, C. E., Ilieva, Y., Kalicy, G., Llope, W. J., Nadel-Turonski, P., Schwarz, C., Schwiening, J., Shankman, N., Stevens, J., Wickramaarachchi, N., & Woody, C. (2026). The xpDIRC concept for next-generation DIRC detectors. Nuclear Inst. and Methods in Physics Research, A, 1089, Article 171603. https://doi.org/10.1016/j.nima.2026.171603

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title = "The xpDIRC concept for next-generation DIRC detectors",

abstract = "The next-generation DIRC (xpDIRC) represents a novel detector geometry concept currently being developed for advanced particle identification systems in high-energy physics experiments. Building upon the high-performance DIRC (hpDIRC) designed for the ePIC detector at the Electron-Ion Collider, the xpDIRC introduces a hybrid optical architecture that combines enhanced focusing optics, a wide plate light guide, and a compact expansion volume. Comprehensive Geant4 simulations demonstrate that the xpDIRC hybrid geometry achieves state-of-the-art performance in π/K separation across the entire range of operation.",

keywords = "Cherenkov counter, DIRC, Particle identification, Ring imaging",

author = "R. Dzhygadlo and J. Datta and K. Dehmelt and A. Deshpande and Hemmick, \{T. K.\} and Hossain, \{Md I.\} and Hyde, \{C. E.\} and Y. Ilieva and G. Kalicy and Llope, \{W. J.\} and P. Nadel-Turonski and C. Schwarz and J. Schwiening and N. Shankman and J. Stevens and N. Wickramaarachchi and C. Woody",

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year = "2026",

month = sep,

doi = "10.1016/j.nima.2026.171603",

language = "English",

volume = "1089",

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

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Dzhygadlo, R, Datta, J, Dehmelt, K, Deshpande, A , Hemmick, TK, Hossain, MI, Hyde, CE, Ilieva, Y, Kalicy, G, Llope, WJ, Nadel-Turonski, P, Schwarz, C, Schwiening, J, Shankman, N, Stevens, J, Wickramaarachchi, N & Woody, C 2026, 'The xpDIRC concept for next-generation DIRC detectors', Nuclear Inst. and Methods in Physics Research, A, vol. 1089, 171603. https://doi.org/10.1016/j.nima.2026.171603

TY - JOUR

T1 - The xpDIRC concept for next-generation DIRC detectors

AU - Dzhygadlo, R.

AU - Datta, J.

AU - Dehmelt, K.

AU - Deshpande, A.

AU - Hemmick, T. K.

AU - Hossain, Md I.

AU - Hyde, C. E.

AU - Ilieva, Y.

AU - Kalicy, G.

AU - Llope, W. J.

AU - Nadel-Turonski, P.

AU - Schwarz, C.

AU - Schwiening, J.

AU - Shankman, N.

AU - Stevens, J.

AU - Wickramaarachchi, N.

AU - Woody, C.

PY - 2026/9

Y1 - 2026/9

N2 - The next-generation DIRC (xpDIRC) represents a novel detector geometry concept currently being developed for advanced particle identification systems in high-energy physics experiments. Building upon the high-performance DIRC (hpDIRC) designed for the ePIC detector at the Electron-Ion Collider, the xpDIRC introduces a hybrid optical architecture that combines enhanced focusing optics, a wide plate light guide, and a compact expansion volume. Comprehensive Geant4 simulations demonstrate that the xpDIRC hybrid geometry achieves state-of-the-art performance in π/K separation across the entire range of operation.

AB - The next-generation DIRC (xpDIRC) represents a novel detector geometry concept currently being developed for advanced particle identification systems in high-energy physics experiments. Building upon the high-performance DIRC (hpDIRC) designed for the ePIC detector at the Electron-Ion Collider, the xpDIRC introduces a hybrid optical architecture that combines enhanced focusing optics, a wide plate light guide, and a compact expansion volume. Comprehensive Geant4 simulations demonstrate that the xpDIRC hybrid geometry achieves state-of-the-art performance in π/K separation across the entire range of operation.

KW - Cherenkov counter

KW - DIRC

KW - Particle identification

KW - Ring imaging

UR - https://www.scopus.com/pages/publications/105036808563

U2 - 10.1016/j.nima.2026.171603

DO - 10.1016/j.nima.2026.171603

M3 - Article

AN - SCOPUS:105036808563

SN - 0168-9002

VL - 1089

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

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

M1 - 171603

ER -

The xpDIRC concept for next-generation DIRC detectors

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