相关论文: Prospects for PBR detection of KM3-230213A-like ev…

The Optical and Mechanical Design of POEMMA Balloon with Radio

POEMMA Balloon with Radio (PBR) is a NASA super-pressure balloon mission building toward the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) dual satellite mission. In its planned 2027 launch, PBR will study…

天体物理仪器与方法 · 物理学 2025-09-16 Eric Mayotte , Austin Cummings , Paul Degarate , Neville DeWitt Pierrat , Johannes Eser , William Finch , Julia Burton-Heibges , Tobias Heibges , Eric Mentzell , Stephan Meyer , Conrad Shay , Benjamin Stillwell , Yoshiyuki Takizawa , Luke Wanner , Lawrence Wiencke

POEMMA-Balloon with Radio: a balloon-born multi-messenger multi-detector observatory

The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is a proposed dual-satellite mission to observe Ultra-High-Energy Cosmic Rays (UHECRs), increasing the statistics at the highest energies, and Very-High-Energy Neutrinos (VHENs),…

天体物理仪器与方法 · 物理学 2024-09-12 Matteo Battisti , Johannes Eser , Angela Olinto , Giuseppe Osteria

The X-$\gamma$ detector onboard the POEMMA-Balloon with Radio payload

The POEMMA-Balloon with Radio (PBR) is a NASA mission designed to study Ultra-High-Energy Cosmic Rays and Very-High-Energy Neutrinos from a balloon platform. Serving as a precursor to the planned POEMMA satellite mission, PBR will be…

天体物理仪器与方法 · 物理学 2025-11-18 Matteo Battisti

POEMMA-Balloon with Radio: A multi-messenger, multi-detector balloon payload

A review of the current status of the field of Ultra-High-Energy Cosmic Ray (UHECR) including a summary of remaining open questions was presented in the white paper "Ultra-High Energy Cosmic Rays: at the Intersection of the Cosmic and…

天体物理仪器与方法 · 物理学 2026-04-15 J. Adams , J. Alfaro , D. Allard , P. Alldredge , R. Aloisio , R. Ammendola , A. Anastasio , L. Anchordoqui , D. Badoni , J. Baláž , B. Baret , L. Bar-On , M. Battisti , R. Bellotti , M. Bertaina , M. Betts , S. Blin , M. Boezio , P. Bořil , J. Brague , I. Buckland , J. Burton Heibges , F. S. Cafagna , P. Cao , J. Caraca , R. Caruso , M. Casolino , K. Černý , N. Cordrey , A. Creusot , A. Cummings , P. Degarate , C. De Santis , A. DiGiovanni , B. J. DiLella A. DiSalvo , J. Eser , S. Ferrarese , G. Filippatos , W. Finch , J. Ford , C. Fornaro , A. Fox-Smith , A. Froid , P. Gálvez Molina , S. Garbolino , D. Garg , B. Gockel , C. Guepin , A. Haungs , T. Heibges , J. Hicks , J. Hinkel , J. Krizmanic , L. Kupari , E. H. Lenzing , F. Liberatori , S. Mackovjak , D. Mandát , M. Manfrin , A. Marcelli , L. Marcelli , G. Masciantonio , V. Masone , E. Mayotte , E. Mentzell , A. Meli , M. Mese , S. Meyer , M. Mignone , M. Miller , M. Mongelli , J. Moses , E. Msihid , R. Munini , M. Murdock , A. Novikov , S. O'Brien , A. V. Olinto , Y. Onel , G. Osteria , B. Panico , E. Parizot , G. Passeggio , T. Paul , M. Pech , K. Penalo Castillo , F. Perfetto , C. Petta , P. Picozza , L. Piotrowski , Z. Plebaniak , H. Qureshi , E. Reali , M. H. Reno , M. Ricci , E. Ricci , A. Rivetti , A. Roy , F. Sarazin , V. Scherini , P. Schovánek , F. G. Schroeder , V. Scotti , C. Shay , A. Sotgiu , R. Sparvoli , B. Stillwell , I. Strhárský , J. Szabelski , Y. Takizawa , R. Torres , R. Triggiani , C. Trimarelli , C. Tussey , J. Tutt , M. Unger , T. Venters , M. Venugopal , P. von Ballmoos , L. Wanner , D. Washington , R. Webb , A. Weindl , L. Wiencke , S. Wissel , A. Yuan

POEMMA-Balloon with Radio: An Overview

The POEMMA-Balloon with Radio (PBR) is an Ultra Long Duration Balloon payload scheduled for launch in Spring 2027 from Wanaka, New Zealand. It will circle over the Southern Ocean for a mission duration as long as 50 days, serving as a…

天体物理仪器与方法 · 物理学 2025-09-08 Johannes Eser , Angela V. Olinto , Giuseppe Osteria

The Fluorescence Camera of the POEMMA-Balloon with Radio (PBR): Design and Scientific goals

The POEMMA-Balloon with Radio (PBR) is a proposed payload to fly on a NASA Super Pressure Balloon (SPB). It will act as a pathfinder of the Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) detector. PBR will consist of an innovative…

天体物理仪器与方法 · 物理学 2024-08-28 Matteo Battisti , Johannes Eser , George Filippatos , Angela Olinto , Giuseppe Osteria , Etienne Parizot , JEM-EUSO Collaboration

Telescope Tilt System for the POEMMA Balloon Radio Mission

The Probe of Extreme Multi-Messenger Astrophysics Balloon with Radio mission (PBR) will point above Earth's limb to measure PeV energy cosmic rays, and record star images to monitor optical focusing in situ. PBR will point below Earth's…

天体物理仪器与方法 · 物理学 2025-09-19 Lawrence Wiencke , James Brague , Ash Fox-Smith , Auston Froid , Levi Bar-On , Stephen Meyer , Josh Moses , Ben Stillwell

The Cherenkov Camera for the PBR mission

The POEMMA-Balloon with Radio (PBR) mission is a NASA super-pressure balloon experiment designed to advance the detection of ultra-high-energy cosmic rays, high-altitude horizontal air showers, and astrophysical neutrinos. A key instrument…

天体物理仪器与方法 · 物理学 2025-11-20 Valentina Scotti , Antonio Anastasio , Mario Bertaina , Alfonso Boiano , Rossella Caruso , Cristian De Santis , Vincenzo Masone , Marco Mese , Giuseppe Osteria , Beatrice Panico , Giuseppe Passeggio , Francesco Perfetto , Haroon Akhtar Qureshi , Ester Ricci

The ultra-high-energy event KM3-230213A within the global neutrino landscape

On February 13th, 2023, the KM3NeT/ARCA telescope detected a neutrino candidate with an estimated energy in the hundreds of PeVs. In this article, the observation of this ultra-high-energy neutrino is discussed in light of null observations…

高能天体物理现象 · 物理学 2025-02-13 KM3NeT Collaboration , O. Adriani , S. Aiello , A. Albert , A. R. Alhebsi , M. Alshamsi , S. Alves Garre , A. Ambrosone , F. Ameli , M. Andre , L. Aphecetche , M. Ardid , S. Ardid , C. Argüelles , J. Aublin , F. Badaracco , L. Bailly-Salins , Z. Bardačová , B. Baret , A. Bariego-Quintana , Y. Becherini , M. Bendahman , F. Benfenati Gualandi , M. Benhassi , M. Bennani , D. M. Benoit , E. Berbee , E. Berti , V. Bertin , P. Betti , S. Biagi , M. Boettcher , D. Bonanno , S. Bottai , A. B. Bouasla , J. Boumaaza , M. Bouta , M. Bouwhuis , C. Bozza , R. M. Bozza , H. Brânzaš , F. Bretaudeau , M. Breuhaus , R. Bruijn , J. Brunner , R. Bruno , E. Buis , R. Buompane , J. Busto , B. Caiffi , D. Calvo , A. Capone , F. Carenini , V. Carretero , T. Cartraud , P. Castaldi , V. Cecchini , S. Celli , L. Cerisy , M. Chabab , A. Chen , S. Cherubini , T. Chiarusi , M. Circella , R. Clark , R. Cocimano , J. A. B. Coelho , A. Coleiro , A. Condorelli , R. Coniglione , P. Coyle , A. Creusot , G. Cuttone , R. Dallier , A. De Benedittis , G. De Wasseige , V. Decoene , P. Deguire , I. Del Rosso , L. S. Di Mauro , I. Di Palma , A. F. Díaz , D. Diego-Tortosa , C. Distefano , A. Domi , C. Donzaud , D. Dornic , E. Drakopoulou , D. Drouhin , J. -G. Ducoin , P. Duverne , R. Dvornický , T. Eberl , E. Eckerová , A. Eddymaoui , T. van Eeden , M. Eff , D. van Eijk , I. El Bojaddaini , S. El Hedri , S. El Mentawi , V. Ellajosyula , A. Enzenhöfer , G. Ferrara , M. D. Filipović , F. Filippini , D. Franciotti , L. A. Fusco , T. Gal , J. García Méndez , A. Garcia Soto , C. Gatius Oliver , N. Geißelbrecht , E. Genton , H. Ghaddari , L. Gialanella , B. K. Gibson , E. Giorgio , I. Goos , P. Goswami , S. R. Gozzini , R. Gracia , C. Guidi , B. Guillon , M. Gutiérrez , C. Haack , H. van Haren , A. Heijboer , L. Hennig , J. J. Hernández-Rey , A. Idrissi , W. Idrissi Ibnsalih , G. Illuminati , O. Janik , D. Joly , M. de Jong , P. de Jong , B. J. Jung , P. Kalaczyński , N. Kamp , J. Keegans , V. Kikvadze , G. Kistauri , C. Kopper , A. Kouchner , Y. Y. Kovalev , L. Krupa , V. Kueviakoe , V. Kulikovskiy , R. Kvatadze , M. Labalme , R. Lahmann , M. Lamoureux , G. Larosa , C. Lastoria , J. Lazar , A. Lazo , S. Le Stum , G. Lehaut , V. Lemaître , E. Leonora , N. Lessing , G. Levi , M. Lindsey Clark , F. Longhitano , F. Magnani , J. Majumdar , L. Malerba , F. Mamedov , A. Manfreda , A. Manousakis , M. Marconi , A. Margiotta , A. Marinelli , C. Markou , L. Martin , M. Mastrodicasa , S. Mastroianni , J. Mauro , K. C. K. Mehta , A. Meskar , G. Miele , P. Migliozzi , E. Migneco , M. L. Mitsou , C. M. Mollo , L. Morales-Gallegos , N. Mori , A. Moussa , I. Mozun Mateo , R. Muller , M. R. Musone , M. Musumeci , S. Navas , A. Nayerhoda , C. A. Nicolau , B. Nkosi , B. Ó Fearraigh , V. Oliviero , A. Orlando , E. Oukacha , L. Pacini , D. Paesani , J. Palacios González , G. Papalashvili , P. Papini , V. Parisi , A. Parmar , E. J. Pastor Gomez , C. Pastore , A. M. Păun , G. E. Păvălaš , S. Peña Martínez , M. Perrin-Terrin , V. Pestel , R. Pestes , M. Petropavlova , P. Piattelli , A. Plavin , C. Poirè , V. Popa , T. Pradier , J. Prado , S. Pulvirenti , C. A. Quiroz-Rangel , N. Randazzo , A. Ratnani , S. Razzaque , I. C. Rea , D. Real , G. Riccobene , J. Robinson , A. Romanov , E. Ros , A. Šaina , F. Salesa Greus , D. F. E. Samtleben , A. Sánchez Losa , S. Sanfilippo , M. Sanguineti , D. Santonocito , P. Sapienza , M. Scaringella , M. Scarnera , J. Schnabel , J. Schumann , H. M. Schutte , J. Seneca , N. Sennan , P. A. Sevle Myhr , I. Sgura , R. Shanidze , A. Sharma , Y. Shitov , F. Šimkovic , A. Simonelli , A. Sinopoulou , B. Spisso , M. Spurio , O. Starodubtsev , D. Stavropoulos , I. Štekl , D. Stocco , M. Taiuti , G. Takadze , Y. Tayalati , H. Thiersen , S. Thoudam , I. Tosta e Melo , B. Trocmé , V. Tsourapis , E. Tzamariudaki , A. Ukleja , A. Vacheret , V. Valsecchi , V. Van Elewyck , G. Vannoye , E. Vannuccini , G. Vasileiadis , F. Vazquez de Sola , A. Veutro , S. Viola , D. Vivolo , A. van Vliet , A. Y. Wen , E. de Wolf , I. Lhenry-Yvon , S. Zavatarelli , A. Zegarelli , D. Zito , J. D. Zornoza , J. Zúñiga , N. Zywucka

The blazar PKS 0605-085 as the origin of the KM3-230213A ultra high energy neutrino event

The KM3Net Collaboration has recently reported on the observation of a remarkable event KM3-230213A that could have been produced by an ultra high energy cosmic neutrino. The origin of this event is still unclear. In particular, the…

高能天体物理现象 · 物理学 2025-02-18 T. A. Dzhatdoev

The Fluorescence Camera for the PBR mission

The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) Balloon with Radio (PBR) is an instrument designed to be borne by a NASA suborbital Super Pressure Balloon (SPB), in a mission planned to last as long as 50 days. The PBR instrument…

天体物理仪器与方法 · 物理学 2025-11-21 Francesco Saverio Cafagna

Scrutinizing the cosmogenic origin of the KM3-230213A event: A Multimessenger Perspective

The recent detection of the neutrino event KM3-230213A ($\sim$~220 PeV) by the KM3NeT/ARCA telescope, the most energetic ever observed, could represent the long-awaited evidence for a cosmogenic origin, arising from the interaction of an…

高能天体物理现象 · 物理学 2025-07-17 Alessandro Cermenati , Antonio Ambrosone , Roberto Aloisio , Denise Boncioli , Carmelo Evoli

Constraining Super-Heavy Dark Matter with the KM3-230213A Neutrino Event

Recently, the KM3NeT collaboration detected an astrophysical neutrino event, KM3-230213A, with an energy of approximately $220~\rm PeV$, providing unprecedented insights into the ultra-high-energy Universe. In this study, we introduce a…

高能天体物理现象 · 物理学 2026-02-13 Roberto Aloisio , Antonio Ambrosone , Carmelo Evoli

Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A

Context: The detection of the highest energy neutrino observed to date by KM3NeT, with an estimated energy of 220 PeV, opens up new possibilities for the study and identification of the astrophysical sources responsible for a diffuse flux…

高能天体物理现象 · 物理学 2026-05-20 KM3NeT Collaboration , O. Adriani , A. Albert , A. R. Alhebsi , S. Alshalloudi , M. Alshamsi , S. Alves Garre , A. Ambrosone , F. Ameli , M. Andre , L. Aphecetche , M. Ardid , S. Ardid , J. Aublin , F. Badaracco , L. Bailly-Salins , B. Baret , A. Bariego-Quintana , Y. Becherini , M. Bendahman , F. Benfenati Gualandi , M. Benhassi , D. M. Benoit , Beňušová , E. Berbee , E. Berti , V. Bertin , P. Betti , S. Biagi , M. Boettcher , D. Bonanno , S. Bottai , A. B. Bouasla , J. Boumaaza , M. Bouta , M. Bouwhuis , C. Bozza , R. M. Bozza , H. Brânzaš , F. Bretaudeau , M. Breuhaus , R. Bruijn , J. Brunner , R. Bruno , E. Buis , R. Buompane , J. Busto , B. Caiffi , D. Calvo , A. Capone , F. Carenini , V. Carretero , T. Cartraud , P. Castaldi , V. Cecchini , S. Celli , L. Cerisy , M. Chabab , A. Chen , S. Cherubini , T. Chiarusi , M. Circella , R. Clark , R. Cocimano , J. A. B. Coelho , A. Coleiro , A. Condorelli , R. Coniglione , P. Coyle , A. Creusot , G. Cuttone , R. Dallier , A. De Benedittis , G. De Wasseige , V. Decoene , P. Deguire , I. Del Rosso , L. S. Di Mauro , I. Di Palma , A. F. Díaz , D. Diego-Tortosa , C. Distefano , A. Domi , C. Donzaud , D. Dornic , E. Drakopoulou , D. Drouhin , J. -G. Ducoin , P. Duverne , R. Dvornický , T. Eberl , E. Eckerová , A. Eddymaoui , T. van Eeden , M. Eff , D. van Eijk , I. El Bojaddaini , S. El Hedri , S. El Mentawi , A. Enzenhöfer , G. Ferrara , M. D. Filipović , F. Filippini , D. Franciotti , L. A. Fusco , S. Gagliardini , T. Gal , J. García Méndez , A. Garcia Soto , C. Gatius Oliver , N. Geißelbrecht , E. Genton , H. Ghaddari , L. Gialanella , B. K. Gibson , E. Giorgio , I. Goos , P. Goswami , S. R. Gozzini , R. Gracia , B. Guillon , C. Haack , H. van Haren , A. Heijboer , L. Hennig , J. J. Hernández-Rey , A. Idrissi , W. Idrissi Ibnsalih , G. Illuminati , R. Jaimes , O. Janik , D. Joly , M. de Jong , P. de Jong , B. J. Jung , P. Kalaczyński , J. Keegans , V. Kikvadze , G. Kistauri , C. Kopper , A. Kouchner , Y. Y. Kovalev , L. Krupa , V. Kueviakoe , V. Kulikovskiy , R. Kvatadze , M. Labalme , R. Lahmann , M. Lamoureux , G. Larosa , C. Lastoria , J. Lazar , A. Lazo , G. Lehaut , V. Lemaître , E. Leonora , N. Lessing , G. Levi , M. Lindsey Clark , F. Longhitano , S. Madarapu , F. Magnani , L. Malerba , F. Mamedov , A. Manfreda , A. Manousakis , M. Marconi , A. Margiotta , A. Marinelli , C. Markou , L. Martin , M. Mastrodicasa , S. Mastroianni , J. Mauro , K. C. K. Mehta , G. Miele , P. Migliozzi , E. Migneco , M. L. Mitsou , C. M. Mollo , L. Morales-Gallegos , N. Mori , A. Moussa , I. Mozun Mateo , R. Muller , M. R. Musone , M. Musumeci , S. Navas , A. Nayerhoda , C. A. Nicolau , B. Nkosi , B. Ó Fearraigh , V. Oliviero , A. Orlando , E. Oukacha , L. Pacini , D. Paesani , J. Palacios González , G. Papalashvili , P. Papini , V. Parisi , A. Parmar , C. Pastore , A. M. Păun , G. E. Păvălaš , S. Peña Martínez , M. Perrin-Terrin , V. Pestel , M. Petropavlova , P. Piattelli , A. Plavin , C. Poirè , V. Popa , T. Pradier , J. Prado , S. Pulvirenti , C. A. Quiroz-Rangel , N. Randazzo , A. Ratnani , S. Razzaque , I. C. Rea , D. Real , G. Riccobene , J. Robinson , A. Romanov , E. Ros , A. Šaina , F. Salesa Greus , D. F. E. Samtleben , A. Sánchez Losa , S. Sanfilippo , M. Sanguineti , D. Santonocito , P. Sapienza , M. Scaringella , M. Scarnera , J. Schnabel , J. Schumann , J. Seneca , P. A. Sevle Myhr , I. Sgura , R. Shanidze , Chengyu Shao , A. Sharma , Y. Shitov , F. Šimkovic , A. Simonelli , A. Sinopoulou , B. Spisso , M. Spurio , O. Starodubtsev , D. Stavropoulos , I. Štekl , D. Stocco , M. Taiuti , G. Takadze , Y. Tayalati , H. Thiersen , S. Thoudam , I. Tosta e Melo , B. Trocmé , V. Tsourapis , E. Tzamariudaki , A. Ukleja , A. Vacheret , V. Valsecchi , V. Van Elewyck , G. Vannoye , E. Vannuccini , G. Vasileiadis , F. Vazquez de Sola , A. Veutro , S. Viola , D. Vivolo , A. van Vliet , E. de Wolf , I. Lhenry-Yvon , S. Zavatarelli , D. Zito , J. D. Zornoza , J. Zúñiga

KM3-230213A: An Ultra-High Energy Neutrino from a Year-Long Astrophysical Transient

The Km3NET collaboration has recently reported the detection of a neutrino event with energy in excess of 100 PeV. This detection is in 2.5-3$\sigma$ tension with the upper limit on the neutrino flux at this energy imposed by IceCube and…

高能天体物理现象 · 物理学 2025-02-19 Andrii Neronov , Foteini Oikonomou , Dmitri Semikoz

The Extreme Universe Observatory on a Super-Pressure Balloon II: Mission, Payload, and Flight

The Extreme Universe Space Observatory on a Super Pressure Balloon 2 (EUSO-SPB2) is a pathfinder mission toward a space-based observatory such as the Probe of Extreme Multi-Messenger Astrophysics (POEMMA). The aim of POEMMA is the…

高能天体物理现象 · 物理学 2025-05-28 James. H. Adams , Denis Allard , Phillip Alldredge , Luis Anchordoqui , Anna Anzalone , Mahdi Bagheri , Matteo Battisti , Roberto Bellotti , Alexander Belov , Mario Bertaina , Peter Bertone , Sylvie Blin-Bondil , Jordan Bogdan , Julia Burton Heigbes , Francis Cafagna , Rosella Caruso , Marco Casolino , Karel Černý , Mark J. Christl , Roberta Colalillo , Hank J. Crawford , Alexandre Creusot , Austin Cummings , Julia Desiato , Rebecca Diesing , Alessandro Di Nola , Toshikazu Ebisuzaki , Johannes Eser , Francesco Fenu , Silvia Ferrarese , George Filippatøs , William W. Finch , Flavia Flaminio , S. Flannery , Claudio Fornaro , Noah Friedlander , Duncan Fuehne , Christer Fuglesang , Srikar Gadamsetty , Diksha Garg , Eleanor Gazda , Alessio Golzio , Fausto Guarino , Claire Guépin , Tobias Heibges , Eleanor G. Judd , Luke Kupari , Pavel A. Klimov , John F. Krizmanic , Viktoria Kungel , Evgeny Kuznetsov , Marco Mignone , Massimiliano Manfrin , Wlodzimierz Marszał , John N. Matthews , Kameron Mehling , Marco Mese , Stephan S. Meyer , Hiroko Miyamoto , Alexey S. Murashov , Jane M. Nachtman , Angela V. Olinto , Yasar Onel , Giuseppe Osteria , A. Nepomuk Otte , Beatrice Panico , Etienne Parizot , Tom Paul , Miroslav Pech , Francesco Perfetto , Lech W. Piotrowski , Zbigniew Plebaniak , Jonatan Posligua , Matthew Potts , Guillaume Prévôt , M. Przybylak , Pat Reardon , Mary Hall Reno , Marco Ricci , Oscar F. Romero Matamala , Fred Sarazin , Petr Schovánek , Viktoria Scotti , Kenji Shinozaki , Jorge F. Soriano , S. Stephanoff , Patrick Sternberg , Ben K. Stillwell , Jacek Szabelski , Yoshiyuki Takizawa , Daniil Trofimov , Fredrik Unel , Valerio Vagelli , Laura Valore , Tonia M. Venters , John Watts , Lawrence Wiencke , Hannah Wistrand , Roy Young

KM3-230213A and IceCube Neutrino Events from Metastable Dark Matter of Primordial Black Hole Origin

We investigate a scenario in which the recently observed ultra-high-energy neutrino event KM3-230213A, with a median energy of approximately 220 PeV, as well as the high-energy neutrinos detected by IceCube Observatory, originate from the…

高能物理 - 唯象学 · 物理学 2026-05-14 Prabhav Singh , Mansi Dhuria , Nathanael Varghese Job

POEMMA (Probe of Extreme Multi-Messenger Astrophysics) Roadmap Update

The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) was designed as a NASA Astrophysics probe-class mission to identify the sources of ultrahigh energy cosmic rays (UHECRs) and observe cosmic neutrinos from extremely energetic…

高能天体物理现象 · 物理学 2023-09-27 Angela V. Olinto

Does the 220 PeV Event at KM3NeT Point to New Physics?

The KM3NeT collaboration recently reported the observation of KM3-230213A, a neutrino event with an energy exceeding 100 PeV, more than an order of magnitude higher than the most energetic neutrino in IceCube's catalog. Given its longer…

高能物理 - 唯象学 · 物理学 2026-03-17 Vedran Brdar , Dibya S. Chattopadhyay

Paucity of downward UHE neutrino tracks in IceCube versus unexpected huge KM3-230213A event: solving the puzzles?

Recently the ARCA array detector published the down-ward-horizontal event: the KM3-230213A. It appeared as the most energetic neutrino ever observed: about 200 PeV (2 10^17 eV) up to EeV (10^18 eV) energy. This huge value, is puzzling. It…

高能天体物理现象 · 物理学 2025-12-09 D. Fargion