Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC

M. H. Kim; S. Y. Ryu; J. K. Ahn; W. S. Jung; S. H. Kim; J. W. Lee; T. Ohta; J. B. Park; M. Tabata; M. Yosoi

doi:10.1016/j.nima.2019.01.059

Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC

M. H. Kim, S. Y. Ryu, J. K. Ahn, W. S. Jung, S. H. Kim, J. W. Lee, T. Ohta, J. B. Park, M. Tabata, M. Yosoi

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

Abstract

We have developed a new threshold Cherenkov detector for online triggering in the H-dibaryon search experiment at the K1.8 beam line at J-PARC. Silica aerogel radiators with a refractive index of n=1.04 will cover an effective area of 550 × 220 mm ² . The Cherenkov detector will be placed in a high magnetic field between two spectrometer magnets. Three prototypes and a real-size mockup module have been tested using pions and protons from photoproduction at SPring-8. For momentum ranging from 1.0 to 1.1 GeV ∕c, a suppression factor of 10 ³ could be achieved for pions, with a factor of 10 ⁻² for proton misidentification.

Original language	English
Pages (from-to)	38-44
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	923
DOIs	https://doi.org/10.1016/j.nima.2019.01.059
Publication status	Published - 2019 Apr 11

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Cherenkov detector
E42
LEPS
Parabolic reflector
Silica aerogel

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2019.01.059

Cite this

Kim, M. H., Ryu, S. Y., Ahn, J. K., Jung, W. S., Kim, S. H., Lee, J. W., Ohta, T., Park, J. B., Tabata, M., & Yosoi, M. (2019). Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 923, 38-44. https://doi.org/10.1016/j.nima.2019.01.059

Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC. / Kim, M. H.; Ryu, S. Y.; Ahn, J. K. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 923, 11.04.2019, p. 38-44.

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

Kim, MH, Ryu, SY, Ahn, JK, Jung, WS, Kim, SH, Lee, JW, Ohta, T, Park, JB, Tabata, M & Yosoi, M 2019, 'Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 923, pp. 38-44. https://doi.org/10.1016/j.nima.2019.01.059

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abstract = " We have developed a new threshold Cherenkov detector for online triggering in the H-dibaryon search experiment at the K1.8 beam line at J-PARC. Silica aerogel radiators with a refractive index of n=1.04 will cover an effective area of 550 × 220 mm 2 . The Cherenkov detector will be placed in a high magnetic field between two spectrometer magnets. Three prototypes and a real-size mockup module have been tested using pions and protons from photoproduction at SPring-8. For momentum ranging from 1.0 to 1.1 GeV ∕c, a suppression factor of 10 3 could be achieved for pions, with a factor of 10 −2 for proton misidentification.",

keywords = "Cherenkov detector, E42, LEPS, Parabolic reflector, Silica aerogel",

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year = "2019",

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day = "11",

doi = "10.1016/j.nima.2019.01.059",

language = "English",

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AU - Kim, M. H.

AU - Ryu, S. Y.

AU - Ahn, J. K.

AU - Jung, W. S.

AU - Kim, S. H.

AU - Lee, J. W.

AU - Ohta, T.

AU - Park, J. B.

AU - Tabata, M.

AU - Yosoi, M.

PY - 2019/4/11

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N2 - We have developed a new threshold Cherenkov detector for online triggering in the H-dibaryon search experiment at the K1.8 beam line at J-PARC. Silica aerogel radiators with a refractive index of n=1.04 will cover an effective area of 550 × 220 mm 2 . The Cherenkov detector will be placed in a high magnetic field between two spectrometer magnets. Three prototypes and a real-size mockup module have been tested using pions and protons from photoproduction at SPring-8. For momentum ranging from 1.0 to 1.1 GeV ∕c, a suppression factor of 10 3 could be achieved for pions, with a factor of 10 −2 for proton misidentification.

AB - We have developed a new threshold Cherenkov detector for online triggering in the H-dibaryon search experiment at the K1.8 beam line at J-PARC. Silica aerogel radiators with a refractive index of n=1.04 will cover an effective area of 550 × 220 mm 2 . The Cherenkov detector will be placed in a high magnetic field between two spectrometer magnets. Three prototypes and a real-size mockup module have been tested using pions and protons from photoproduction at SPring-8. For momentum ranging from 1.0 to 1.1 GeV ∕c, a suppression factor of 10 3 could be achieved for pions, with a factor of 10 −2 for proton misidentification.

KW - Cherenkov detector

KW - E42

KW - LEPS

KW - Parabolic reflector

KW - Silica aerogel

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SN - 0168-9002

VL - 923

SP - 38

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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

ER -

Development of a threshold aerogel Cherenkov detector for K∕π separation in the H-dibaryon search at J-PARC

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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