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Reconstruction and Performance Evaluation of FASER's Emulsion Detector at the LHC

Fuente: arXiv

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Hauptverfasser:	FASER Collaboration, Abraham, Roshan Mammen, Ai, Xiaocong, Monsalve, Saul Alonso, Anders, John, Antel, Claire, Ariga, Akitaka, Ariga, Tomoko, Atkinson, Jeremy, Bernlochner, Florian U., Boeckh, Tobias, Boyd, Jamie, Brenner, Lydia, Burger, Angela, Cadou, Franck, Cardella, Roberto, Casper, David W., Cavanagh, Charlotte, Chen, Xin, Chinone, Kohei, Chouhan, Dhruv, Coccaro, Andrea, Débieu, Stephane, Desai, Ansh, Dmitrievsky, Sergey, Dobre, Radu, D'Onofrio, Monica, Eley, Sinead, Favre, Yannick, Fellers, Deion, Feng, Jonathan L., Fenoglio, Carlo Alberto, Ferrere, Didier, Fieg, Max, Filali, Wissal, Firu, Elena, Fujimori, Haruhi, Galantay, Edward, Garabaglu, Ali, Gibson, Stephen, Gonzalez-Sevilla, Sergio, Gornushkin, Yuri, Gwilliam, Carl, Hayakawa, Daiki, Holzbock, Michael, Hsu, Shih-Chieh, Hu, Zhen, Iacobucci, Giuseppe, Inada, Tomohiro, Iodice, Luca, Jakobsen, Sune, Joos, Hans, Kajomovitz, Enrique, Kanai, Takumi, Kawahara, Hiroaki, Keyken, Alex, Kling, Felix, Köck, Daniela, Kontaxakis, Pantelis, Kose, Umut, Kotitsa, Rafaella, Krack, Peter, Kuehn, Susanne, Kugathasan, Thanushan, Levinson, Lorne, Li, Botao, Liu, Jinfeng, Liu, Yi, Lutz, Margaret S., MacDonald, Jack, Magliocca, Chiara, Mäkelä, Toni, McCoy, Lawson, McFayden, Josh, Medina, Andrea Pizarro, Milanesio, Matteo, Moretti, Théo, Moriyama, Keiko, Nakamura, Mitsuhiro, Nakano, Toshiyuki, Nevay, Laurie, Nonaka, Motoya, Ohara, Yuma, Ohashi, Ken, Okui, Kazuaki, Otono, Hidetoshi, Pang, Hao, Paolozzi, Lorenzo, Pawan, Pawan, Petersen, Brian, Preda, Titi, Prim, Markus, Queitsch-Maitland, Michaela, Rojo, Juan, Rokujo, Hiroki, Rubbia, André, Sabater-Iglesias, Jorge, Sato, Osamu, Scampoli, Paola, Schmieden, Kristof, Schott, Matthias, Sebastiani, Christiano, Sfyrla, Anna, Sgalaberna, Davide, Shamim, Mansoora, Shively, Savannah, Takubo, Yosuke, Tarannum, Noshin, Theiner, Ondrej, Thor, Simon, Torrence, Eric, Martinez, Oscar Ivan Valdes, Vasina, Svetlana, Vormwald, Benedikt, Wang, Yuxiao, Welch, Eli, Wielers, Monika, Wilson, Benjamin James, Wu, Jialin, Wuthrich, Johannes Martin, Xu, Yue, Zambito, Stefano, Zhang, Shunliang, Zhao, Xingyu
Format:	Preprint
Veröffentlicht:	2025
Schlagworte:	Instrumentation and Detectors High Energy Physics - Experiment
Online-Zugang:	Acceder al recurso
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author	FASER Collaboration Abraham, Roshan Mammen Ai, Xiaocong Monsalve, Saul Alonso Anders, John Antel, Claire Ariga, Akitaka Ariga, Tomoko Atkinson, Jeremy Bernlochner, Florian U. Boeckh, Tobias Boyd, Jamie Brenner, Lydia Burger, Angela Cadou, Franck Cardella, Roberto Casper, David W. Cavanagh, Charlotte Chen, Xin Chinone, Kohei Chouhan, Dhruv Coccaro, Andrea Débieu, Stephane Desai, Ansh Dmitrievsky, Sergey Dobre, Radu D'Onofrio, Monica Eley, Sinead Favre, Yannick Fellers, Deion Feng, Jonathan L. Fenoglio, Carlo Alberto Ferrere, Didier Fieg, Max Filali, Wissal Firu, Elena Fujimori, Haruhi Galantay, Edward Garabaglu, Ali Gibson, Stephen Gonzalez-Sevilla, Sergio Gornushkin, Yuri Gwilliam, Carl Hayakawa, Daiki Holzbock, Michael Hsu, Shih-Chieh Hu, Zhen Iacobucci, Giuseppe Inada, Tomohiro Iodice, Luca Jakobsen, Sune Joos, Hans Kajomovitz, Enrique Kanai, Takumi Kawahara, Hiroaki Keyken, Alex Kling, Felix Köck, Daniela Kontaxakis, Pantelis Kose, Umut Kotitsa, Rafaella Krack, Peter Kuehn, Susanne Kugathasan, Thanushan Levinson, Lorne Li, Botao Liu, Jinfeng Liu, Yi Lutz, Margaret S. MacDonald, Jack Magliocca, Chiara Mäkelä, Toni McCoy, Lawson McFayden, Josh Medina, Andrea Pizarro Milanesio, Matteo Moretti, Théo Moriyama, Keiko Nakamura, Mitsuhiro Nakano, Toshiyuki Nevay, Laurie Nonaka, Motoya Ohara, Yuma Ohashi, Ken Okui, Kazuaki Otono, Hidetoshi Pang, Hao Paolozzi, Lorenzo Pawan, Pawan Petersen, Brian Preda, Titi Prim, Markus Queitsch-Maitland, Michaela Rojo, Juan Rokujo, Hiroki Rubbia, André Sabater-Iglesias, Jorge Sato, Osamu Scampoli, Paola Schmieden, Kristof Schott, Matthias Sebastiani, Christiano Sfyrla, Anna Sgalaberna, Davide Shamim, Mansoora Shively, Savannah Takubo, Yosuke Tarannum, Noshin Theiner, Ondrej Thor, Simon Torrence, Eric Martinez, Oscar Ivan Valdes Vasina, Svetlana Vormwald, Benedikt Wang, Yuxiao Welch, Eli Wielers, Monika Wilson, Benjamin James Wu, Jialin Wuthrich, Johannes Martin Xu, Yue Zambito, Stefano Zhang, Shunliang Zhao, Xingyu
author_facet	FASER Collaboration Abraham, Roshan Mammen Ai, Xiaocong Monsalve, Saul Alonso Anders, John Antel, Claire Ariga, Akitaka Ariga, Tomoko Atkinson, Jeremy Bernlochner, Florian U. Boeckh, Tobias Boyd, Jamie Brenner, Lydia Burger, Angela Cadou, Franck Cardella, Roberto Casper, David W. Cavanagh, Charlotte Chen, Xin Chinone, Kohei Chouhan, Dhruv Coccaro, Andrea Débieu, Stephane Desai, Ansh Dmitrievsky, Sergey Dobre, Radu D'Onofrio, Monica Eley, Sinead Favre, Yannick Fellers, Deion Feng, Jonathan L. Fenoglio, Carlo Alberto Ferrere, Didier Fieg, Max Filali, Wissal Firu, Elena Fujimori, Haruhi Galantay, Edward Garabaglu, Ali Gibson, Stephen Gonzalez-Sevilla, Sergio Gornushkin, Yuri Gwilliam, Carl Hayakawa, Daiki Holzbock, Michael Hsu, Shih-Chieh Hu, Zhen Iacobucci, Giuseppe Inada, Tomohiro Iodice, Luca Jakobsen, Sune Joos, Hans Kajomovitz, Enrique Kanai, Takumi Kawahara, Hiroaki Keyken, Alex Kling, Felix Köck, Daniela Kontaxakis, Pantelis Kose, Umut Kotitsa, Rafaella Krack, Peter Kuehn, Susanne Kugathasan, Thanushan Levinson, Lorne Li, Botao Liu, Jinfeng Liu, Yi Lutz, Margaret S. MacDonald, Jack Magliocca, Chiara Mäkelä, Toni McCoy, Lawson McFayden, Josh Medina, Andrea Pizarro Milanesio, Matteo Moretti, Théo Moriyama, Keiko Nakamura, Mitsuhiro Nakano, Toshiyuki Nevay, Laurie Nonaka, Motoya Ohara, Yuma Ohashi, Ken Okui, Kazuaki Otono, Hidetoshi Pang, Hao Paolozzi, Lorenzo Pawan, Pawan Petersen, Brian Preda, Titi Prim, Markus Queitsch-Maitland, Michaela Rojo, Juan Rokujo, Hiroki Rubbia, André Sabater-Iglesias, Jorge Sato, Osamu Scampoli, Paola Schmieden, Kristof Schott, Matthias Sebastiani, Christiano Sfyrla, Anna Sgalaberna, Davide Shamim, Mansoora Shively, Savannah Takubo, Yosuke Tarannum, Noshin Theiner, Ondrej Thor, Simon Torrence, Eric Martinez, Oscar Ivan Valdes Vasina, Svetlana Vormwald, Benedikt Wang, Yuxiao Welch, Eli Wielers, Monika Wilson, Benjamin James Wu, Jialin Wuthrich, Johannes Martin Xu, Yue Zambito, Stefano Zhang, Shunliang Zhao, Xingyu
contents	This paper presents the reconstruction and performance evaluation of the FASER$ν$ emulsion detector, which aims to measure interactions from neutrinos produced in the forward direction of proton-proton collisions at the CERN Large Hadron Collider. The detector, composed of tungsten plates interleaved with emulsion films, records charged particles with sub-micron precision. A key challenge arises from the extremely high track density environment, reaching $\mathcal{O}(10^5)$ tracks per cm$^2$. To address this, dedicated alignment techniques and track reconstruction algorithms have been developed, building on techniques from previous experiments and introducing further optimizations. The performance of the detector is studied by evaluating the single-film efficiency, position and angular resolution, and the impact parameter distribution of reconstructed vertices. The results demonstrate that an alignment precision of 0.3 micrometers and robust track and vertex reconstruction are achieved, enabling accurate neutrino measurements in the TeV energy range.
format	Preprint
id	arxiv_https___arxiv_org_abs_2504_13008
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Reconstruction and Performance Evaluation of FASER's Emulsion Detector at the LHC FASER Collaboration Abraham, Roshan Mammen Ai, Xiaocong Monsalve, Saul Alonso Anders, John Antel, Claire Ariga, Akitaka Ariga, Tomoko Atkinson, Jeremy Bernlochner, Florian U. Boeckh, Tobias Boyd, Jamie Brenner, Lydia Burger, Angela Cadou, Franck Cardella, Roberto Casper, David W. Cavanagh, Charlotte Chen, Xin Chinone, Kohei Chouhan, Dhruv Coccaro, Andrea Débieu, Stephane Desai, Ansh Dmitrievsky, Sergey Dobre, Radu D'Onofrio, Monica Eley, Sinead Favre, Yannick Fellers, Deion Feng, Jonathan L. Fenoglio, Carlo Alberto Ferrere, Didier Fieg, Max Filali, Wissal Firu, Elena Fujimori, Haruhi Galantay, Edward Garabaglu, Ali Gibson, Stephen Gonzalez-Sevilla, Sergio Gornushkin, Yuri Gwilliam, Carl Hayakawa, Daiki Holzbock, Michael Hsu, Shih-Chieh Hu, Zhen Iacobucci, Giuseppe Inada, Tomohiro Iodice, Luca Jakobsen, Sune Joos, Hans Kajomovitz, Enrique Kanai, Takumi Kawahara, Hiroaki Keyken, Alex Kling, Felix Köck, Daniela Kontaxakis, Pantelis Kose, Umut Kotitsa, Rafaella Krack, Peter Kuehn, Susanne Kugathasan, Thanushan Levinson, Lorne Li, Botao Liu, Jinfeng Liu, Yi Lutz, Margaret S. MacDonald, Jack Magliocca, Chiara Mäkelä, Toni McCoy, Lawson McFayden, Josh Medina, Andrea Pizarro Milanesio, Matteo Moretti, Théo Moriyama, Keiko Nakamura, Mitsuhiro Nakano, Toshiyuki Nevay, Laurie Nonaka, Motoya Ohara, Yuma Ohashi, Ken Okui, Kazuaki Otono, Hidetoshi Pang, Hao Paolozzi, Lorenzo Pawan, Pawan Petersen, Brian Preda, Titi Prim, Markus Queitsch-Maitland, Michaela Rojo, Juan Rokujo, Hiroki Rubbia, André Sabater-Iglesias, Jorge Sato, Osamu Scampoli, Paola Schmieden, Kristof Schott, Matthias Sebastiani, Christiano Sfyrla, Anna Sgalaberna, Davide Shamim, Mansoora Shively, Savannah Takubo, Yosuke Tarannum, Noshin Theiner, Ondrej Thor, Simon Torrence, Eric Martinez, Oscar Ivan Valdes Vasina, Svetlana Vormwald, Benedikt Wang, Yuxiao Welch, Eli Wielers, Monika Wilson, Benjamin James Wu, Jialin Wuthrich, Johannes Martin Xu, Yue Zambito, Stefano Zhang, Shunliang Zhao, Xingyu Instrumentation and Detectors High Energy Physics - Experiment This paper presents the reconstruction and performance evaluation of the FASER$ν$ emulsion detector, which aims to measure interactions from neutrinos produced in the forward direction of proton-proton collisions at the CERN Large Hadron Collider. The detector, composed of tungsten plates interleaved with emulsion films, records charged particles with sub-micron precision. A key challenge arises from the extremely high track density environment, reaching $\mathcal{O}(10^5)$ tracks per cm$^2$. To address this, dedicated alignment techniques and track reconstruction algorithms have been developed, building on techniques from previous experiments and introducing further optimizations. The performance of the detector is studied by evaluating the single-film efficiency, position and angular resolution, and the impact parameter distribution of reconstructed vertices. The results demonstrate that an alignment precision of 0.3 micrometers and robust track and vertex reconstruction are achieved, enabling accurate neutrino measurements in the TeV energy range.
title	Reconstruction and Performance Evaluation of FASER's Emulsion Detector at the LHC
topic	Instrumentation and Detectors High Energy Physics - Experiment
url	https://arxiv.org/abs/2504.13008