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arXiv · 2606.14669

Measurement of the muon neutrino charged-current cross section with SND@LHC

LHC Collaboration·D. Abbaneo·S. Ahmad·R. Albanese·A. Alexandrov·F. Alicante·F. Aloschi·K. Androsov·L. G. Arellano·C. Asawatangtrakuldee·M. A. Ayala Torres·N. Bangaru·C. Battilana·A. Bay·A. Bersani·C. Betancourt·D. Bick·R. Biswas·A. Blanco Castro·V. Boccia·M. Bogomilov·D. Bonacorsi·W. M. Bonivento·P. Bordalo·A. Boyarsky·S. Buontempo·M. Buzio·T. Camporesi·V. Canale·A. Celentano·D. Centanni·F. Cerutti·A. Cervelli·V. Chariton·A. Chiuchiolo·K. -Y. Choi·S. Chuethamchan·F. Cindolo·M. Climescu·G. M. Dallavalle·N. D'Ambrosio·D. Davino·R. De Asmundis·P. T. de Bryas·G. De Lellis·M. de Magistris·G. Del Giudice·G. De Marzi·A. De Roeck·S. De Pasquale·A. De Rújula·A. Di Crescenzo·C. Di Cristo·A. Di Mattia·C. Dinc·I. Dionisov·R. Donà·O. Durhan·D. Fasanella·O. Fecarotta·R. A. Fini·A. Fiorillo·N. Funicello·R. Fresa·W. Funk·G. Galati·K. Genovese·A. Golutvin·E. Graverini·L. Guiducci·A. M. Guler·V. Guliaeva·G. J. Haefeli·C. Hagner·J. C. Helo Herrera·E. van Herwijnen·S. Ilieva·S. A. Infante Cabanas·A. Infantino·A. Iuliano·R. Jacobsson·A. M. Kauniskangas·E. Khalikov·S. H. Kim·Y. G. Kim·G. Klioutchnikov·M. Komatsu·S. Kuleshov·H. M. Lacker·I. Landi·O. Lantwin·F. Lasagni Manghi·A. Lauria·K. Y. Lee·K. S. Lee·W. -C. Lee·W. Lerner·M. Liebsch·V. P. Loschiavo·A. Marrone
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Abstract

We report a measurement of the muon neutrino charged-current (CC) interaction cross section on tungsten using the electronic detectors of the SND@LHC experiment at the CERN Large Hadron Collider. The analysis uses proton--proton collision data at a centre-of-mass energy of $\sqrt{s} = 13.6$ TeV, corresponding to an integrated luminosity of $68.6 ~\text{fb}^{-1}$ collected during LHC Run 3 in 2022 and 2023. A total of 31 $\nu_\mu$ CC candidates are selected against an expected background of $5.0 \pm 1.1$ events, consistent with a signal expectation of $24^{+10}_{-9}$ events. The signal strength is measured to be $\hat{\mu} = 1.09^{+0.72}_{-0.37}$, and the combined muon neutrino and anti-neutrino CC cross section on tungsten is determined to be $\sigma(\nu_\mu + \bar{\nu}_\mu) = (37^{+24}_{-12})\times 10^{-35}~\text{cm}^2$ at a median energy of $228$ GeV. In addition, a calorimetric measurement of the hadronic energies of the neutrino candidate events is performed, making use of calibration data from dedicated test-beam campaigns.

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LHC Collaboration, D. Abbaneo, S. Ahmad, R. Albanese, A. Alexandrov, F. Alicante, F. Aloschi, K. Androsov, L. G. Arellano, C. Asawatangtrakuldee, M. A. Ayala Torres, N. Bangaru, C. Battilana, A. Bay, A. Bersani, C. Betancourt, D. Bick, R. Biswas, A. Blanco Castro, V. Boccia, M. Bogomilov, D. Bonacorsi, W. M. Bonivento, P. Bordalo, A. Boyarsky, S. Buontempo, M. Buzio, T. Camporesi, V. Canale, A. Celentano, D. Centanni, F. Cerutti, A. Cervelli, V. Chariton, A. Chiuchiolo, K. -Y. Choi, S. Chuethamchan, F. Cindolo, M. Climescu, G. M. Dallavalle, N. D'Ambrosio, D. Davino, R. De Asmundis, P. T. de Bryas, G. De Lellis, M. de Magistris, G. Del Giudice, G. De Marzi, A. De Roeck, S. De Pasquale, A. De Rújula, A. Di Crescenzo, C. Di Cristo, A. Di Mattia, C. Dinc, I. Dionisov, R. Donà, O. Durhan, D. Fasanella, O. Fecarotta, R. A. Fini, A. Fiorillo, N. Funicello, R. Fresa, W. Funk, G. Galati, K. Genovese, A. Golutvin, E. Graverini, L. Guiducci, A. M. Guler, V. Guliaeva, G. J. Haefeli, C. Hagner, J. C. Helo Herrera, E. van Herwijnen, S. Ilieva, S. A. Infante Cabanas, A. Infantino, A. Iuliano, R. Jacobsson, A. M. Kauniskangas, E. Khalikov, S. H. Kim, Y. G. Kim, G. Klioutchnikov, M. Komatsu, S. Kuleshov, H. M. Lacker, I. Landi, O. Lantwin, F. Lasagni Manghi, A. Lauria, K. Y. Lee, K. S. Lee, W. -C. Lee, W. Lerner, M. Liebsch, V. P. Loschiavo, A. Marrone. 2026-06-12. Measurement of the muon neutrino charged-current cross section with SND@LHC. https://arxiv.org/abs/2606.14669

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