doi: 10.1103/r2qy-9hft.
Observation of Collider Neutrinos without Final State Muons with the SND@LHC Experiment
D Abbaneo
1
, S Ahmad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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35
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37
38
39
40
, R Albanese
2
3
, A Alexandrov
2
, F Alicante
2
3
, K Androsov
4
, A Anokhina
5
, T Asada
2
3
, C Asawatangtrakuldee
6
, M A Ayala Torres
7
30
, C Battilana
8
9
, A Bay
4
, A Bertocco
2
3
, C Betancourt
10
, D Bick
11
, R Biswas
1
, A Blanco Castro
12
, V Boccia
2
3
, M Bogomilov
13
, D Bonacorsi
8
9
, W M Bonivento
14
, P Bordalo
12
, A Boyarsky
15
16
, S Buontempo
2
, V Cafaro
8
, M Campanelli
17
, T Camporesi
1
, V Canale
2
3
, D Centanni
2
18
, F Cerutti
1
, M Chernyavskiy
5
, K-Y Choi
19
, S Cholak
4
, F Cindolo
8
, M Climescu
20
, A P Conaboy
21
, A Crupano
8
, G M Dallavalle
8
, D Davino
2
22
, P T de Bryas
4
, G De Lellis
2
3
, M De Magistris
2
18
, A De Roeck
1
, A De Rújula
1
, M De Serio
23
24
, D De Simone
10
, A Di Crescenzo
2
3
, D Di Ferdinando
25
, C Dinc
26
, R Donà
8
9
, O Durhan
26
, D Fasanella
8
, F Fedotovs
17
, M Ferrillo
10
, M Ferro-Luzzi
1
, R A Fini
23
, A Fiorillo
2
3
, R Fresa
2
27
, W Funk
1
, F M Garay Walls
28
, V Giordano
8
, A Golovatiuk
2
3
, A Golutvin
29
, E Graverini
4
, A M Guler
1
26
, V Guliaeva
5
, G J Haefeli
4
, C Hagner
11
, J C Helo Herrera
30
31
, E van Herwijnen
29
, P Iengo
2
, S Ilieva
1
13
, A Infantino
1
, A Iuliano
2
3
, R Jacobsson
1
, C Kamiscioglu
26
32
, A M Kauniskangas
4
, E Khalikov
5
, S H Kim
33
, Y G Kim
34
, G Klioutchnikov
1
, M Komatsu
35
, N Konovalova
5
, S Kuleshov
7
30
, L Krzempek
1
2
3
, H M Lacker
21
, O Lantwin
2
, F Lasagni Manghi
8
, A Lauria
2
3
, K Y Lee
33
, K S Lee
36
, V P Loschiavo
2
22
, A Margiotta
8
9
, A Mascellani
4
, F Mei
9
, A Miano
2
3
, A Mikulenko
15
, M C Montesi
2
3
, F L Navarria
8
9
, W Nuntiyakul
37
, S Ogawa
38
, N Okateva
5
, M Ovchynnikov
15
, G Paggi
8
9
, B D Park
33
, A Pastore
23
, A Perrotta
8
, D Podgrudkov
5
, N Polukhina
5
, F Primavera
8
, A Prota
2
3
, A Quercia
2
3
, S Ramos
12
, A Reghunath
21
, T Roganova
5
, F Ronchetti
4
, T Rovelli
8
9
, O Ruchayskiy
39
, T Ruf
1
, M Sabate Gilarte
1
, M Samoilov
5
, V Scalera
2
18
, W Schmidt-Parzefall
11
, O Schneider
4
, G Sekhniaidze
2
, N Serra
10
, M Shaposhnikov
4
, V Shevchenko
5
, T Shchedrina
5
, L Shchutska
4
, H Shibuya
38
, S Simone
23
24
, G Sirri
8
, G Soares
12
, J Y Sohn
33
, O J Soto Sandoval
30
31
, M Spurio
8
9
, N Starkov
5
, J Steggemann
4
, I Timiryasov
39
, V Tioukov
2
, F Tramontano
2
3
, C Trippl
4
, E Ursov
5
, A Ustyuzhanin
2
40
, G Vankova-Kirilova
13
, G Vasquez
10
, V Verguilov
13
, N Viegas Guerreiro Leonardo
12
, C Vilela
12
, C Visone
2
3
, R Wanke
20
, E Yaman
26
, Z Yang
4
, C Yazici
26
, C S Yoon
33
, E Zaffaroni
4
, J Zamora Saa
7
30
; SND@LHC Collaboration
Affiliations
Affiliations
- 1 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 2 Sezione INFN di Napoli, Napoli, Italy.
- 3 Università di Napoli "Federico II," Napoli, Italy.
- 4 Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 5 Affiliated with an institute covered by a cooperation agreement with CERN.
- 6 Chulalongkorn University, Bangkok, 10330, Thailand.
- 7 Center for Theoretical and Experimental Particle Physics, Facultad de Ciencias Exactas, Universidad Andrès Bello, Fernandez Concha 700, Santiago, Chile.
- 8 Sezione INFN di Bologna, Bologna, Italy.
- 9 Università di Bologna, Bologna, Italy.
- 10 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 11 Hamburg University, Hamburg, 22761, Germany.
- 12 Laboratory of Instrumentation and Experimental Particle Physics (LIP), Lisbon, Portugal.
- 13 Faculty of Physics, Sofia University, Sofia, Bulgaria.
- 14 Università degli Studi di Cagliari, Cagliari, Italy.
- 15 University of Leiden, Leiden, The Netherlands.
- 16 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine.
- 17 University College London, London, United Kingdom.
- 18 Università di Napoli Parthenope, Napoli, Italy.
- 19 Sungkyunkwan University, Suwon-si, Gyeong Gi-do, Korea.
- 20 Institut für Physik and PRISMA Cluster of Excellence, Johannes-Gutenberg Universität Mainz, 55099 Mainz, Germany.
- 21 Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
- 22 Università del Sannio, Benevento, Italy.
- 23 Sezione INFN di Bari, Bari, Italy.
- 24 Università di Bari, Bari, Italy.
- 25 Sezione INFN di Bologna, Bologna, 40127, Italy.
- 26 Middle East Technical University (METU), Ankara, 06800, Türkiye.
- 27 Università della Basilicata, Potenza, Italy.
- 28 Departamento de Física, Pontificia Universidad Católica de Chile, 4860 Santiago, Chile.
- 29 Imperial College London, London, United Kingdom.
- 30 Millennium Institute for Subatomic Physics at High Energy Frontier-SAPHIR, Fernandez Concha 700, Santiago, Chile.
- 31 Departamento de Física, Facultad de Ciencias, Universidad de La Serena, Avenida Cisternas 1200, La Serena, Chile.
- 32 Ankara University, Ankara, Türkiye.
- 33 Department of Physics Education and RINS, Gyeongsang National University, Jinju, Korea.
- 34 Gwangju National University of Education, Gwangju, Korea.
- 35 Nagoya University, Nagoya, Japan.
- 36 Korea University, Seoul, Korea.
- 37 Chiang Mai University, Chiang Mai, 50200, Thailand.
- 38 Toho University, Funabashi, Chiba, Japan.
- 39 Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
- 40 Constructor University, Campus Ring 1, Bremen, 28759, Germany.
- PMID: 40577722
- DOI: 10.1103/r2qy-9hft
Item in Clipboard
Observation of Collider Neutrinos without Final State Muons with the SND@LHC Experiment
D Abbaneo et al.
Phys Rev Lett.
.
Display options
Format
doi: 10.1103/r2qy-9hft.
Authors
D Abbaneo
1
, S Ahmad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
, R Albanese
2
3
, A Alexandrov
2
, F Alicante
2
3
, K Androsov
4
, A Anokhina
5
, T Asada
2
3
, C Asawatangtrakuldee
6
, M A Ayala Torres
7
30
, C Battilana
8
9
, A Bay
4
, A Bertocco
2
3
, C Betancourt
10
, D Bick
11
, R Biswas
1
, A Blanco Castro
12
, V Boccia
2
3
, M Bogomilov
13
, D Bonacorsi
8
9
, W M Bonivento
14
, P Bordalo
12
, A Boyarsky
15
16
, S Buontempo
2
, V Cafaro
8
, M Campanelli
17
, T Camporesi
1
, V Canale
2
3
, D Centanni
2
18
, F Cerutti
1
, M Chernyavskiy
5
, K-Y Choi
19
, S Cholak
4
, F Cindolo
8
, M Climescu
20
, A P Conaboy
21
, A Crupano
8
, G M Dallavalle
8
, D Davino
2
22
, P T de Bryas
4
, G De Lellis
2
3
, M De Magistris
2
18
, A De Roeck
1
, A De Rújula
1
, M De Serio
23
24
, D De Simone
10
, A Di Crescenzo
2
3
, D Di Ferdinando
25
, C Dinc
26
, R Donà
8
9
, O Durhan
26
, D Fasanella
8
, F Fedotovs
17
, M Ferrillo
10
, M Ferro-Luzzi
1
, R A Fini
23
, A Fiorillo
2
3
, R Fresa
2
27
, W Funk
1
, F M Garay Walls
28
, V Giordano
8
, A Golovatiuk
2
3
, A Golutvin
29
, E Graverini
4
, A M Guler
1
26
, V Guliaeva
5
, G J Haefeli
4
, C Hagner
11
, J C Helo Herrera
30
31
, E van Herwijnen
29
, P Iengo
2
, S Ilieva
1
13
, A Infantino
1
, A Iuliano
2
3
, R Jacobsson
1
, C Kamiscioglu
26
32
, A M Kauniskangas
4
, E Khalikov
5
, S H Kim
33
, Y G Kim
34
, G Klioutchnikov
1
, M Komatsu
35
, N Konovalova
5
, S Kuleshov
7
30
, L Krzempek
1
2
3
, H M Lacker
21
, O Lantwin
2
, F Lasagni Manghi
8
, A Lauria
2
3
, K Y Lee
33
, K S Lee
36
, V P Loschiavo
2
22
, A Margiotta
8
9
, A Mascellani
4
, F Mei
9
, A Miano
2
3
, A Mikulenko
15
, M C Montesi
2
3
, F L Navarria
8
9
, W Nuntiyakul
37
, S Ogawa
38
, N Okateva
5
, M Ovchynnikov
15
, G Paggi
8
9
, B D Park
33
, A Pastore
23
, A Perrotta
8
, D Podgrudkov
5
, N Polukhina
5
, F Primavera
8
, A Prota
2
3
, A Quercia
2
3
, S Ramos
12
, A Reghunath
21
, T Roganova
5
, F Ronchetti
4
, T Rovelli
8
9
, O Ruchayskiy
39
, T Ruf
1
, M Sabate Gilarte
1
, M Samoilov
5
, V Scalera
2
18
, W Schmidt-Parzefall
11
, O Schneider
4
, G Sekhniaidze
2
, N Serra
10
, M Shaposhnikov
4
, V Shevchenko
5
, T Shchedrina
5
, L Shchutska
4
, H Shibuya
38
, S Simone
23
24
, G Sirri
8
, G Soares
12
, J Y Sohn
33
, O J Soto Sandoval
30
31
, M Spurio
8
9
, N Starkov
5
, J Steggemann
4
, I Timiryasov
39
, V Tioukov
2
, F Tramontano
2
3
, C Trippl
4
, E Ursov
5
, A Ustyuzhanin
2
40
, G Vankova-Kirilova
13
, G Vasquez
10
, V Verguilov
13
, N Viegas Guerreiro Leonardo
12
, C Vilela
12
, C Visone
2
3
, R Wanke
20
, E Yaman
26
, Z Yang
4
, C Yazici
26
, C S Yoon
33
, E Zaffaroni
4
, J Zamora Saa
7
30
; SND@LHC Collaboration
Affiliations
- 1 European Organization for Nuclear Research (CERN), Geneva, Switzerland.
- 2 Sezione INFN di Napoli, Napoli, Italy.
- 3 Università di Napoli "Federico II," Napoli, Italy.
- 4 Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- 5 Affiliated with an institute covered by a cooperation agreement with CERN.
- 6 Chulalongkorn University, Bangkok, 10330, Thailand.
- 7 Center for Theoretical and Experimental Particle Physics, Facultad de Ciencias Exactas, Universidad Andrès Bello, Fernandez Concha 700, Santiago, Chile.
- 8 Sezione INFN di Bologna, Bologna, Italy.
- 9 Università di Bologna, Bologna, Italy.
- 10 Physik-Institut, Universität Zürich, Zürich, Switzerland.
- 11 Hamburg University, Hamburg, 22761, Germany.
- 12 Laboratory of Instrumentation and Experimental Particle Physics (LIP), Lisbon, Portugal.
- 13 Faculty of Physics, Sofia University, Sofia, Bulgaria.
- 14 Università degli Studi di Cagliari, Cagliari, Italy.
- 15 University of Leiden, Leiden, The Netherlands.
- 16 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine.
- 17 University College London, London, United Kingdom.
- 18 Università di Napoli Parthenope, Napoli, Italy.
- 19 Sungkyunkwan University, Suwon-si, Gyeong Gi-do, Korea.
- 20 Institut für Physik and PRISMA Cluster of Excellence, Johannes-Gutenberg Universität Mainz, 55099 Mainz, Germany.
- 21 Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
- 22 Università del Sannio, Benevento, Italy.
- 23 Sezione INFN di Bari, Bari, Italy.
- 24 Università di Bari, Bari, Italy.
- 25 Sezione INFN di Bologna, Bologna, 40127, Italy.
- 26 Middle East Technical University (METU), Ankara, 06800, Türkiye.
- 27 Università della Basilicata, Potenza, Italy.
- 28 Departamento de Física, Pontificia Universidad Católica de Chile, 4860 Santiago, Chile.
- 29 Imperial College London, London, United Kingdom.
- 30 Millennium Institute for Subatomic Physics at High Energy Frontier-SAPHIR, Fernandez Concha 700, Santiago, Chile.
- 31 Departamento de Física, Facultad de Ciencias, Universidad de La Serena, Avenida Cisternas 1200, La Serena, Chile.
- 32 Ankara University, Ankara, Türkiye.
- 33 Department of Physics Education and RINS, Gyeongsang National University, Jinju, Korea.
- 34 Gwangju National University of Education, Gwangju, Korea.
- 35 Nagoya University, Nagoya, Japan.
- 36 Korea University, Seoul, Korea.
- 37 Chiang Mai University, Chiang Mai, 50200, Thailand.
- 38 Toho University, Funabashi, Chiba, Japan.
- 39 Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark.
- 40 Constructor University, Campus Ring 1, Bremen, 28759, Germany.
- PMID: 40577722
- DOI: 10.1103/r2qy-9hft
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Abstract
We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4σ. A dataset of proton-proton collisions at sqrt[s]=13.6 TeV collected by SND@LHC in 2022 and 2023 is used, corresponding to an integrated luminosity of 68.6 fb^{-1}. Neutrino interactions without a reconstructed muon are selected, resulting in an event sample consisting mainly of neutral-current and electron neutrino charged-current interactions in the detector. After selection cuts, 9 neutrino interaction candidate events are observed with an estimated background of 0.32 events.
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