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: The first results of the study of high-energy electron neutrino (ν_{e}) and muon neutrino (ν_{μ}) charged-current interactions in the FASERν emulsion-tungsten detector of the FASER experiment at the LHC are presented. A 128.8 kg subset of the FASERν volume was analyzed after exposure to 9.5  fb^{-1} of sqrt[s]=13.6  TeV pp data. Four (eight) ν_{e} (ν_{μ}) interaction candidate events are observed with a statistical significance of 5.2σ (5.7σ). This is the first direct observation of ν_{e} interactions at a particle collider and includes the highest-energy ν_{e} and ν_{μ} ever detected from an artificial source. The interaction cross section per nucleon σ/E_{ν} is measured over an energy range of 560-1740 GeV (520-1760 GeV) for ν_{e} (ν_{μ}) to be (1.2_{-0.7}^{+0.8})×10^{-38}  cm^{2} GeV^{-1} [(0.5±0.2)×10^{-38}  cm^{2} GeV^{-1}], consistent with standard model predictions. These are the first measurements of neutrino interaction cross sections in those energy ranges.

First Measurement of νe and νμ Interaction Cross Sections at the LHC with FASER’s Emulsion Detector / Abraham, Roshan Mammen; Anders, John; Antel, Claire; Ariga, Akitaka; Ariga, Tomoko; Atkinson, Jeremy; Bernlochner, Florian U.; Boeckh, Tobias; Boyd, Jamie; Brenner, Lydia; Burger, Angela; Cadoux, Franck; Cardella, Roberto; Casper, David W.; Cavanagh, Charlotte; Chen, Xin; Coccaro, Andrea; Débieux, Stephane; D'Onofrio, Monica; Desai, Ansh; Dmitrievsky, Sergey; Eley, Sinead; Favre, Yannick; Fellers, Deion; Feng, Jonathan L.; Fenoglio, Carlo Alberto; Ferrere, Didier; Fieg, Max; Filali, Wissal; Fujimori, Haruhi; Garabaglu, Ali; Gibson, Stephen; Gonzalez-Sevilla, Sergio; Gornushkin, Yuri; Gwilliam, Carl; Hayakawa, Daiki; 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; Kuehn, Susanne; Kugathasan, Thanushan; Lefebvre, Helena; Levinson, Lorne; Li, Ke; Liu, Jinfeng; Lutz, Margaret S.; Macdonald, Jack; Magliocca, Chiara; Martinelli, Fulvio; Mccoy, Lawson; Mcfayden, Josh; Medina, Andrea Pizarro; Milanesio, Matteo; Moretti, Théo; Munker, Magdalena; Nakamura, Mitsuhiro; Nakano, Toshiyuki; Neuhaus, Friedemann; Nevay, Laurie; Nonaka, Motoya; Okui, Kazuaki; Ohashi, Ken; Otono, Hidetoshi; Pang, Hao; Paolozzi, Lorenzo; Petersen, Brian; Prim, Markus; Queitsch-Maitland, Michaela; Rokujo, Hiroki; Ruiz-Choliz, Elisa; Rubbia, André; Sabater-Iglesias, Jorge; Sato, Osamu; Scampoli, Paola; Schmieden, Kristof; Schott, Matthias; Sfyrla, Anna; Shamim, Mansoora; Shively, Savannah; Takubo, Yosuke; Tarannum, Noshin; Theiner, Ondrej; Torrence, Eric; Vasina, Svetlana; Vormwald, Benedikt; Wang, Di; Wang, Yuxiao; Welch, Eli; Zahorec, Samuel; Zambito, Stefano; Zhang, Shunliang; Null, Null. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 133:2(2024). [10.1103/physrevlett.133.021802]

First Measurement of νe and νμ Interaction Cross Sections at the LHC with FASER’s Emulsion Detector

Martinelli, Fulvio;Scampoli, Paola;
2024

Abstract

: The first results of the study of high-energy electron neutrino (ν_{e}) and muon neutrino (ν_{μ}) charged-current interactions in the FASERν emulsion-tungsten detector of the FASER experiment at the LHC are presented. A 128.8 kg subset of the FASERν volume was analyzed after exposure to 9.5  fb^{-1} of sqrt[s]=13.6  TeV pp data. Four (eight) ν_{e} (ν_{μ}) interaction candidate events are observed with a statistical significance of 5.2σ (5.7σ). This is the first direct observation of ν_{e} interactions at a particle collider and includes the highest-energy ν_{e} and ν_{μ} ever detected from an artificial source. The interaction cross section per nucleon σ/E_{ν} is measured over an energy range of 560-1740 GeV (520-1760 GeV) for ν_{e} (ν_{μ}) to be (1.2_{-0.7}^{+0.8})×10^{-38}  cm^{2} GeV^{-1} [(0.5±0.2)×10^{-38}  cm^{2} GeV^{-1}], consistent with standard model predictions. These are the first measurements of neutrino interaction cross sections in those energy ranges.
2024
First Measurement of νe and νμ Interaction Cross Sections at the LHC with FASER’s Emulsion Detector / Abraham, Roshan Mammen; Anders, John; Antel, Claire; Ariga, Akitaka; Ariga, Tomoko; Atkinson, Jeremy; Bernlochner, Florian U.; Boeckh, Tobias; Boyd, Jamie; Brenner, Lydia; Burger, Angela; Cadoux, Franck; Cardella, Roberto; Casper, David W.; Cavanagh, Charlotte; Chen, Xin; Coccaro, Andrea; Débieux, Stephane; D'Onofrio, Monica; Desai, Ansh; Dmitrievsky, Sergey; Eley, Sinead; Favre, Yannick; Fellers, Deion; Feng, Jonathan L.; Fenoglio, Carlo Alberto; Ferrere, Didier; Fieg, Max; Filali, Wissal; Fujimori, Haruhi; Garabaglu, Ali; Gibson, Stephen; Gonzalez-Sevilla, Sergio; Gornushkin, Yuri; Gwilliam, Carl; Hayakawa, Daiki; 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; Kuehn, Susanne; Kugathasan, Thanushan; Lefebvre, Helena; Levinson, Lorne; Li, Ke; Liu, Jinfeng; Lutz, Margaret S.; Macdonald, Jack; Magliocca, Chiara; Martinelli, Fulvio; Mccoy, Lawson; Mcfayden, Josh; Medina, Andrea Pizarro; Milanesio, Matteo; Moretti, Théo; Munker, Magdalena; Nakamura, Mitsuhiro; Nakano, Toshiyuki; Neuhaus, Friedemann; Nevay, Laurie; Nonaka, Motoya; Okui, Kazuaki; Ohashi, Ken; Otono, Hidetoshi; Pang, Hao; Paolozzi, Lorenzo; Petersen, Brian; Prim, Markus; Queitsch-Maitland, Michaela; Rokujo, Hiroki; Ruiz-Choliz, Elisa; Rubbia, André; Sabater-Iglesias, Jorge; Sato, Osamu; Scampoli, Paola; Schmieden, Kristof; Schott, Matthias; Sfyrla, Anna; Shamim, Mansoora; Shively, Savannah; Takubo, Yosuke; Tarannum, Noshin; Theiner, Ondrej; Torrence, Eric; Vasina, Svetlana; Vormwald, Benedikt; Wang, Di; Wang, Yuxiao; Welch, Eli; Zahorec, Samuel; Zambito, Stefano; Zhang, Shunliang; Null, Null. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 133:2(2024). [10.1103/physrevlett.133.021802]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/985741
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