Refined neutrino follow-up analysis of GRB 221009A with KM3NeT ARCA and ORCA detectors

Palacios Gonzalez, J.; Le Stum, S.; Dornic, D.; Filippini, F.; Illuminati, G.; Salesa Greus, F.; Sanchez Losa, A.; Vannoye, G.; Zegarelli, A.; Aiello, S.; Albert, A.; Alves Garre, S.; Aly, Z.; Ambrosone, A.; Ameli, F.; Andre, M.; Androutsou, E.; Anguita, M.; Aphecetche, L.; Ardid, M.; Ardid, S.; Atmani, H.; Aublin, J.; Bailly-Salins, L.; Bardacova, Z.; Baret, B.; Bariego-Quintana, A.; Basegmez Du Pree, S.; Becherini, Y.; Bendahman, M.; Benfenati, F.; Benhassi, M.; Benoit, D. M.; Berbee, E.; Bertin, V.; Biagi, S.; Boettcher, M.; Bonanno, D.; Boumaaza, J.; Bouta, M.; Bouwhuis, M.; Bozza, C.; Bozza, R. M.; Branzas, H.; Bretaudeau, F.; Bruijn, R.; Brunner, J.; Bruno, R.; Buis, E.; Buompane, R.; Busto, J.; Caiffi, B.; Calvo, D.; Campion, S.; Capone, A.; Carenini, F.; Carretero, V.; Cartraud, T.; Castaldi, P.; Cecchini, V.; Celli, S.; Cerisy, L.; Chabab, M.; Chadolias, M.; Chen, A.; Cherubini, S.; Chiarusi, T.; Circella, M.; Cocimano, R.; Coelho, J. A. B.; Coleiro, A.; Coniglione, R.; Coyle, P.; Creusot, A.; Cruz, A.; Cuttone, G.; Dallier, R.; Darras, Y.; De Benedittis, A.; De Martino, B.; Decoene, V.; Del Burgo, R.; Di Cerbo, U. M.; Di Mauro, L. S.; Di Palma, I.; Diaz, A. F.; Diaz, C.; Diego-Tortosa, D.; Distefano, C.; Domi, A.; Donzaud, C.; Dornic, D.; Dorr, M.; Drakopoulou, E.; Drouhin, D.; Dvornicky, R.; Eberl, T.; Eckerova, E.; Eddymaoui, A.; Van Eeden, T.; Eff, M.; Van Eijk, D.; El Bojaddaini, I.; El Hedri, S.; Enzenhofer, A.; Ferrara, G.; Filipovic, M. D.; Filippini, F.; Franciotti, D.; Fusco, L. A.; Gabriel, J.; Gagliardini, S.; Gal, T.; Garcia Mendez, J.; Garcia Soto, A.; Gatius Oliver, C.; Geisselbrecht, N.; Ghaddari, H.; Gialanella, L.; Gibson, B. K.; Giorgio, E.; Goos, I.; Goupilliere, D.; Gozzini, S. R.; Gracia, R.; Graf, K.; Guidi, C.; Guillon, B.; Gutierrez, M.; Van Haren, H.; Heijboer, A.; Hekalo, A.; Hennig, L.; Hernandez-Rey, J. J.; Huang, F.; Idrissi Ibnsalih, W.; Illuminati, G.; James, C. W.; De Jong, M.; De Jong, P.; Jung, B. J.; Kalaczynski, P.; Kalekin, O.; Katz, U. F.; Khan Chowdhury, N. R.; Khatun, A.; Kistauri, G.; Kopper, C.; Kouchner, A.; Kulikovskiy, V.; Kvatadze, R.; Labalme, M.; Lahmann, R.; Larosa, G.; Lastoria, C.; Lazo, A.; Le Stum, S.; Lehaut, G.; Leonora, E.; Lessing, N.; Levi, G.; Lindsey Clark, M.; Longhitano, F.; Majumdar, J.; Malerba, L.; Mamedov, F.; Manczak, J.; Manfreda, A.; Marconi, M.; Margiotta, A.; Marinelli, A.; Markou, C.; Martin, L.; Martinez-Mora, J. A.; Marzaioli, F.; Mastrodicasa, M.; Mastroianni, S.; Micciche, S.; Miele, G.; Migliozzi, P.; Migneco, E.; Mitsou, M. L.; Mollo, C. M.; Morales-Gallegos, L.; Morley-Wong, C.; Moussa, A.; Mozun Mateo, I.; Muller, R.; Musone, M. R.; Musumeci, M.; Nauta, L.; Navas, S.; Nayerhoda, A.; Nicolau, C. A.; Nkosi, B.; Fearraigh, B. O.; Oliviero, V.; Orlando, A.; Oukacha, E.; Paesani, D.; Papalashvili, G.; Parisi, V.; Pastor Gomez, E. J.; Paun, A. M.; Pavalas, G. E.; Pena Martinez, S.; Perrin-Terrin, M.; Perronnel, J.; Pestel, V.; Pestes, R.; Piattelli, P.; Poire, C.; Popa, V.; Pradier, T.; Pulvirenti, S.; Quemener, G.; Quiroz, C.; Rahaman, U.; Randazzo, N.; Randriatoamanana, R.; Razzaque, S.; Rea, I. C.; Real, D.; Reck, S.; Riccobene, G.; Robinson, J.; Romanov, A.; Saina, A.; Samtleben, D. F. E.; Sanfilippo, S.; Sanguineti, M.; Santonastaso, C.; Santonocito, D.; Sapienza, P.; Schnabel, J.; Schumann, J.; Schutte, H. M.; Seneca, J.; Sennan, N.; Setter, B.; Sgura, I.; Shanidze, R.; Shitov, Y.; Simkovic, F.; Simonelli, A.; Sinopoulou, A.; Smirnov, M. V.; Spisso, B.; Spurio, M.; Stavropoulos, D.; Stekl, I.; Taiuti, M.; Tayalati, Y.; Tedjditi, H.; Thiersen, H.; Tosta E Melo, I.; Trocme, B.; Tsourapis, V.; Tzamariudaki, E.; Vacheret, A.; Valsecchi, V.; Van Elewyck, V.; Vannoye, G.; Vasileiadis, G.; Vazquez De Sola, F.; Verilhac, C.; Veutro, A.; Viola, S.; Vivolo, D.; Wilms, J.; De Wolf, E.; Yepes-Ramirez, H.; Zarpapis, G.; Zavatarelli, S.; Zegarelli, A.; Zito, D.; Zornoza, J. D.; Zuniga, J.; Zywucka, N.

doi:10.22323/1.444.1503

On October 9th 2022, the Swift-BAT telescope detected a spectacular transient event, soon classified as a Gamma-Ray Burst (GRB), based on the Fermi-GBM observation performed one hour earlier. Photons up to TeV energies were observed from such GRB by LHAASO, corresponding to the highest energy ever detected from a GRB. Just after this detection, a large number of observatories detected and characterized the multi-wavelength and multi-messenger emissions of this GRB, in one of the largest worldwide follow-up campaigns ever. The KM3NeT neutrino telescope was one of the experiments that participated in the follow-up effort. KM3NeT is currently being built in the Mediterranean Sea and is composed of two detectors: ORCA, optimized for the detection of signals induced by neutrinos in the GeV-TeV range, and ARCA, mainly focused in neutrinos at the TeV-PeV range. MeV neutrinos can also be detected by looking for rate coincidences of Photo-Multipliers Tubes signals in both detectors. A first fast analysis was performed using data from the online reconstruction chain. In this contribution, we present a refined follow-up analysis, where new offline features are added together with improved calibration and optimized event selection.

Refined neutrino follow-up analysis of GRB 221009A with KM3NeT ARCA and ORCA detectors / Palacios Gonzalez, J., Le Stum, S., Dornic, D., Filippini, F., Illuminati, G., Salesa Greus, F., Sanchez Losa, A., Vannoye, G., Zegarelli, A., Aiello, S., Albert, A., Alves Garre, S., Aly, Z., Ambrosone, A., Ameli, F., Andre, M., Androutsou, E., Anguita, M., Aphecetche, L., Ardid, M., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 444:(2024), pp. 1-10. (38th International cosmic ray conference, ICRC 2023 Nagoya, Japan ) [10.22323/1.444.1503].