The energy spectrum of forward photons measured by the RHICf experiment in vs = 510 GeV proton-proton collisions

K. Sato; Y. Itow; H. Menjo; M. Ueno; K. Ohashi; T. Sako; Y. Goto; I. Nakagawa; R. Saidl; J. S. Park; M. H. Kim; B. Hong; K. Tanida; S. Torii; K. Kasahara; N. Sakurai; O. Adriani; R. D'Alessandro; L. Bonechi; E. Berti; A. Tricomi

The energy spectrum of forward photons measured by the RHICf experiment in ^vs = 510 GeV proton-proton collisions

K. Sato, Y. Itow, H. Menjo, M. Ueno, K. Ohashi, T. Sako, Y. Goto, I. Nakagawa, R. Saidl, J. S. Park, M. H. Kim, B. Hong, K. Tanida, S. Torii, K. Kasahara, N. Sakurai, O. Adriani, R. D'Alessandro, L. Bonechi, E. BertiA. Tricomi

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at vs = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.

Original language	English
Journal	Proceedings of Science
Volume	358
Publication status	Published - 2019
Event	36th International Cosmic Ray Conference, ICRC 2019 - Madison, United States Duration: 2019 Jul 24 → 2019 Aug 1

Bibliographical note

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

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Sato, K., Itow, Y., Menjo, H., Ueno, M., Ohashi, K., Sako, T., Goto, Y., Nakagawa, I., Saidl, R., Park, J. S., Kim, M. H., Hong, B., Tanida, K., Torii, S., Kasahara, K., Sakurai, N., Adriani, O., D'Alessandro, R., Bonechi, L., ... Tricomi, A. (2019). The energy spectrum of forward photons measured by the RHICf experiment in ^vs = 510 GeV proton-proton collisions. Proceedings of Science, 358.

Sato, K, Itow, Y, Menjo, H, Ueno, M, Ohashi, K, Sako, T, Goto, Y, Nakagawa, I, Saidl, R, Park, JS, Kim, MH, Hong, B, Tanida, K, Torii, S, Kasahara, K, Sakurai, N, Adriani, O, D'Alessandro, R, Bonechi, L, Berti, E & Tricomi, A 2019, 'The energy spectrum of forward photons measured by the RHICf experiment in ^vs = 510 GeV proton-proton collisions', Proceedings of Science, vol. 358.

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title = "The energy spectrum of forward photons measured by the RHICf experiment in vs = 510 GeV proton-proton collisions",

abstract = "The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at vs = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.",

author = "K. Sato and Y. Itow and H. Menjo and M. Ueno and K. Ohashi and T. Sako and Y. Goto and I. Nakagawa and R. Saidl and Park, {J. S.} and Kim, {M. H.} and B. Hong and K. Tanida and S. Torii and K. Kasahara and N. Sakurai and O. Adriani and R. D'Alessandro and L. Bonechi and E. Berti and A. Tricomi",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 36th International Cosmic Ray Conference, ICRC 2019 ; Conference date: 24-07-2019 Through 01-08-2019",

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T1 - The energy spectrum of forward photons measured by the RHICf experiment in vs = 510 GeV proton-proton collisions

AU - Sato, K.

AU - Itow, Y.

AU - Menjo, H.

AU - Ueno, M.

AU - Ohashi, K.

AU - Sako, T.

AU - Goto, Y.

AU - Nakagawa, I.

AU - Saidl, R.

AU - Park, J. S.

AU - Kim, M. H.

AU - Hong, B.

AU - Tanida, K.

AU - Torii, S.

AU - Kasahara, K.

AU - Sakurai, N.

AU - Adriani, O.

AU - D'Alessandro, R.

AU - Bonechi, L.

AU - Berti, E.

AU - Tricomi, A.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2019

Y1 - 2019

N2 - The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at vs = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.

AB - The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at vs = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.

UR - http://www.scopus.com/inward/record.url?scp=85086263885&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85086263885

SN - 1824-8039

VL - 358

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 36th International Cosmic Ray Conference, ICRC 2019

Y2 - 24 July 2019 through 1 August 2019

ER -

The energy spectrum of forward photons measured by the RHICf experiment in ^vs = 510 GeV proton-proton collisions

Abstract

Bibliographical note

ASJC Scopus subject areas

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