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The KM3NeT Collaboration has elected a new Management Team!

13 December 2024 – During the last Collaboration meeting, the KM3NeT Collaboration has elected a new Management Team, who will serve for the two coming years. In addition to the new Institute Board Chair, prof Antoine Kouchner from UPCité, France elected last June, the following people will be leading the Collaboration as:

  • Spokesperson: Paul De Jong (Nikhef and University of Amsterdam, The Netherlands)
  • Deputy Spokesperson: Damien Dornic (CPPM/CNRS, France)
  • Physics and Software Manager: Rosa Coniglione (INFN-LNS, Italy)
  • Technical Project Manager: Antonio D’Amico (Nikhef, The Netherlands)

The transition from the current to the new Management Team will happen at the next Collaboration meeting at the end of January, celebrated with presents and pictures! Stay tuned!

Curious about who are the people behind the researchers?  We asked them to share a few words about themselves!

 

Paul De Jong – Spokesperson:

“I studied Applied Physics at the Twente University of Technology in Enschede, the Netherlands, and did my PhD at Nikhef and at the University of Amsterdam in the ZEUS collaboration at the HERA collider at DESY in 1993, on calorimeter construction and reconstruction software, and measurement of the hadronic energy flow in first HERA data.

I was then a postdoc in the L3 Collaboration at LEP, first employed by MIT, later as a CERN fellow, on the commissioning of, and track reconstruction software for, the newly installed endcap muon chambers on the L3 magnet doors. I worked on the Z-line shape in dimuon decays and on W physics (triple gauge couplings and mass) at LEP 2. I returned to Nikhef in 1999 with a sponsored tenure-track position, joined D0 at the Tevatron (electron reconstruction and top physics) and ATLAS at the LHC, where I spent most time, in construction of the silicon strip detector endcaps and their commissioning, and in searches for supersymmetry in ATLAS data.

I got tenure at Nikhef in 2003, was appointed professor at the University of Amsterdam (UvA) in 2008, and full professor in 2012; I served as the director of the (astro)particle physics division (IHEF) of the UvA Institute of Physics between 2015 and 2024, and as director of the full UvA Institute of Physics between 2017 and 2022. I have handed over the Nikhef KM3NeT group leadership to Dorothea Samtleben last year, and the directorship of IHEF to someone else this summer.

With KM3NeT we have embarked on an amazing project. It resonates with everyone I talk to, from the general public to students to people at funding agencies. We have employed more than 50 detection units and produced first results, and the discoveries coming not only show how well the detector works, but also how much there is still to explore in our field.

Fun fact about Paul: He was member of the Particle Data Group where he co-authored several instances of the Review on Experimental SUSY Searches in the Particle Data Book!

 

Damien Dornic – Deputy Spokesperson:

 “I began my career as PhD student at the Pierre Auger Observatory before joining the ANTARES and KM3NeT collaborations in 2006, where I pursued two postdoctoral positions, first at CPPM in Marseille and then at IFIC in Valencia. In 2011, I was appointed a permanent research position at CNRS. During this period, I have acquired expertise in neutrino astronomy. I was coordinator of the multi-messenger analysis group in ANTARES between 2012 and 2017 and coordinator of the multi-messenger and transient analysis group in KM3NeT between 2017 and 2020. Between 2020 and 2025, I was the co-convener of the astronomy group of KM3NeT. I am also in charge of the implementation of the real-time analysis framework in KM3NeT. I have been a pioneer in the development of the neutrino follow-up program of ANTARES and have developed collaborations with plenty of international observatories.

 Fun fact about Damien: Beyond his work in neutrino astronomy, Damien is also involved in the construction of the ORCA detector, contributing to technical discussions and the integration of detection units!

 

Rosa Coniglione – Physics and Software Manager:


“In the first part of my career, I worked on experimental nuclear physics, spending many years developing and operating an apparatus to study heavy-ion collisions. A seminar at my institute opened up a new world for me: I was captivated by a new, at least for me, detector that employed particle physics technology to explore the cosmos. Inspired by this idea, I began my work with KM3NeT.

Since the inception of the Collaboration, I have dedicated all my time to KM3NeT. I contributed to the ARCA detector design through MC simulations and participated in the initial sensitivity estimates. For many years, I led the Astronomy group and oversaw data analysis since the early stages of the Collaboration (first for the prototype detection units and then during the initial phase of construction of the apparatus). I have served as the Deputy Spokesperson of the Collaboration for the past four years.”

Fun fact about Rosa: Despite being born in Sicily, she worked for many years in France before joining KM3NeT. She is as passionate about Paris as about neutrinos!

 

Antonio D’Amico – Technical Project Manager:

“My engagement with KM3NeT started in the early stages of the project and consisted of developing an optical transmission system for a future submarine neutrino detector. During the following 10 years, I was involved in the design of the various detector prototypes, along with their installation and commissioning.

Since 2011, I have been part of the design team of the optics work package, which I later coordinated from 2018 to 2022 as a member of the Project Steering Committee. During the same period, I have been responsible for the design, validation, procurement, installation, and commissioning of the optical transmission system of KM3NeT Phase 1.

Starting in 2019, the structure of the project coordination has been experiencing profound changes with the full establishment of the Project Office team, in which I was appointed as Project Control Officer (PCO) in 2022.”

Fun fact about Antonio: Antonio has been a member of KM3NeT since his master thesis, learning from, growing with and now leading the Collaboration!


KM3NeT welcomes newcomers at the 2024 Bootcamp

10 December 2024 – The KM3NeT Bootcamp 2024, held at the Erlangen Centre for Astroparticle Physics – ECAP,  took place last week, bringing together 56 enthusiastic participants from around the world in a hybrid format. Over four engaging days, the attendees, guided by 18 expert teachers, dived into the fundamentals of KM3NeT, gaining insights into its core principles and tools.

The agenda included foundational sessions on the KM3NeT collaboration and detector principles, as well as hands-on workshops in software development, data acquisition, simulations, and calibration. Advanced topics covered astronomy, cosmic rays, neutrino oscillations, and the study of dark matter. Participants also explored tools for effective coding, data quality and computing strategies.

This event served as more than an introduction—it welcomed newcomers into the KM3NeT community, inspiring them to contribute to the future of science.

We extend our heartfelt thanks to ECAP for their exceptional organization and support in hosting this event.

Here’s to the next generation of cosmic explorers!


KM3NeT gathered online for its fall collaboration meeting

13 November 2024 – Last week , the KM3NeT Collaboration has met online for its fall meeting.

During the meeting, we reviewed the current status of data taking for both ARCA and ORCA detectors, discussed the advancements in their construction, the progresses in MC simulation and detector calibration, and outlined the plans for the ongoing data analyses.

It was also the occasion to celebrate our two last sea campaigns and thus the expanded configurations of the detectors, ARCA 33 and ORCA24. The deployment of new instrumentation on the ORCA site will allow for a precise monitoring of the detector position and water properties.

During the meeting Antoine Kouchner started his mandate as chairperson of the Institute Board, taking over from Uli Katz: with many thanks to Uli for all the work done in the past years, and good luck to Antoine for his new duty.

Also during the meeting, the process to elect the new Management Team of the Collaboration was started.

Finally, KM3NeT gave a heartfelt greeting to its new members. Juan Antonio Aguilar Sánchez of the Université Libre de Bruxelles, Belgium, and Elisa Bernardini of Padova University, Italy,  joined as Observers, while the team led by Arthur Ukleja from the University of Krakow, Poland, was endorsed as Full Member. 

A warm welcome to everyone!

It was great to see the advancements in the physics analyses as well as the simulation and calibration works, to discuss recent scientific advancements and to see the Collaboration continue to grow.

The next Collaboration Meeting is scheduled for January, in Belgium, at Louvain-la-Neuve.


Welcome ARCA33 and ORCA24!

28 October 2024 – The latest sea campaigns at both the KM3NeT’s ARCA and ORCA sites have led to major progress in expanding detector installations and improving calibration systems.

The number of detection units in operation in the deep sea has been increased to 57: 33 in ARCA and 24 in ORCA.

Despite bad weather at the ARCA site, the so-called Phase-1 part of the apparatus was completed, while construction of Phase-2 was started with the installation of two new junction boxes, three detection units (exploiting a new data acquisition architecture), and calibration components. The operations also included important maintenance tasks, such as recovering and replacing acoustic beacons. All optical modules of the deployed strings are fully operational. KM3NeT/ARCA now comprises 33 detection units.

At the ORCA site, a 60-hour calm weather window allowed the team to deploy the Calibration Unit (Calibration Base+Instrumentation Unit) and to install an additional detection unit. After these successful installations, node 1 of ORCA is complete and fully functional, an important milestone in the construction of ORCA. The total number of functional detection units at ORCA has now reached 24.

These recent efforts at both sites underscore KM3NeT’s expanding capability in detecting and studying neutrinos from the sea’s depths. The whole Collaboration extends its gratitude to the offshore and onshore teams whose hard work made these successful operations possible.
A furled detection unit ready for the deployment at the ORCA site
ORCA offshore team on the Castor 02 ship
Components for ARCA on the deck of the Optimus Prime ship: in the foreground is one junction box, behind it there are a couple of spools with the submarine interlink cables and then some detection units
ARCA onshore shift crew at the site of Portopalo

 

 

 

 

 

 

 

 

 

 

 

ATLAS comet visible from the harbour of Portopalo di Capo Passero

 

Sonar scan of the ORCA site taken by the ROV at the end of the operation. The anchors of the detections Units (DUs), the junction box (JB1), the Calibration Base (CB), the Instrumentation Unit (IU) and the Module Instrumentation Interface (MII) are all visible.

Neutrino 2024 Poster Winner: Isabel Goos

03 July 2024 – In June, KM3NeT scientist participated to the XXXI International Conference on Neutrino Physics and Astrophysics (Neutrino 2024), held in Milan, Italy, and organized by the University of Milano – Bicocca, the University of Milan and the Istituto Nazionale di Fisica Nucleare (INFN).

As one of the largest conferences in astroparticle physics, neutrino physics and cosmology, it was the occasion to share latest findings, innovative concepts and future outlooks among experts of the field.

Isabel Goos at Neutrino 2024 (credits Neutrino2024)

During the conference, Isabel Goos, KM3NeT’s researcher at the University of Paris Cité, was awarded one of the four prizes for the best-poster award. In her poster, titled “KM3NeT’s sensitivity to the next core-collapse supernova”, she discusses how individual multi-PMT optical modules of KM3NeT can be used as standalone detectors for the detection of low-energy neutrinos from Core Collapsed Super Novae. It has been selected among 460 accepted posters, of which 319 eligible for this acknowledgement.

KM3NeT joins in congratulating Isabel on her great achievement!

In total, KM3NeT presented 17 posters, covering topics including neutrino astronomy, neutrino oscillations, dark matter & exotics, cosmic-ray studies and technologies for neutrino physics.

KM3NeT at Neutrino2024.

In addition, four members of the KM3NeT Collaboration had a plenary talk: João Coelho, who discussed the latests results from KM3NeT; Maurizio Spurio, debating open problems in neutrino astrophysics;  Naoko Kurahashi Neilson, contributing on the present and future of high-energy neutrino astronomy, and Jürgen Brunner presenting future detectors for atmospheric neutrinos.

Neutrino 2026 will be held at the University of California – Irvine. Looking forward to sharing our advancements also on that occasion!


The KM3NeT Collaboration reunited in Texel for its spring meeting

23 June 2024 – KM3NeT has met, in Texel (The Netherlands) and online, for its spring Collaboration meeting, hosted by NIOZ, the Royal Netherlands Institute for Sea Research.

The meeting brought together collaborators in order to review the status of the ongoing analyses, Monte Carlo simulations and calibration efforts, for both the ARCA and ORCA detectors, and prepare exciting contributions to the Neutrino 2024 Conference.

During the week, the progress of detector construction was discussed, celebrating the achievement of assembling the 1,500th DOM. Additionally, plans for upcoming sea campaigns were refined.

Furthermore, Antoine Kouchner has been elected chair of the KM3NeT Institute Board, taking over from Uli Katz. The full Collaboration joins in thanking Uli for his outstanding work and wishes the best of luck to Antoine for the incoming endeavors!

The meeting was also the opportunity to welcome the new members of the Collaboration. Both the Max Planck Institute for Radio Astronomy (Bonn, Germany) and the Khalifa University (United Arab Emirates) have been endorsed as Full Members, with Yuri Y. Kovalev and Satyendra Thoudam as PIs respectively.  Kristina Giesel from ECAP Erlangen (Germany) joined as a new Associated Member. Welcome to all of you!

It was wonderful to engage in fruitful discussions about recent scientific developments and to see the Collaboration continue to grow.

Thanks a lot to NIOZ for the hospitality and to the whole local team for the organization!

The next meeting is scheduled for late autumn in online mode.


ORCA enlarged with four new detection units

15 June 2024 – A new marine operation took place in the last week for enlarging the ORCA deep-sea neutrino telescope.

Taking advantage of a spot of good weather of 48 hours, four new detection units were added to the apparatus.

For each of such units, the following steps were required: installation on the bottom of the sea, connection to the apparatus, functionality check, unfurling from the launcher vehicle, final test to check the functionality post-unfurling and recovery of the launcher vehicle. During the operation one acoustic beacon, which was in need of refurbishment, was recovered from the bottom of the sea.

The campaign was performed with two ships and a deep-sea ROV. A team onshore performed all needed tests on the newly installed detection units.

After the new installations, ORCA now comprises 23 detection units; only one more detection unit is needed for completing all connections on the first of the submarine nodes of the apparatus.

Many thanks to all teams involved for this important step forward!

The deck of Castor-2 of Foselev Marine loaded with the new detection units awaiting deployment, at dawn, while starting up the campaign.

 

A detection unit splashing to start its journey to the bottom of the sea.

 

Into the blue!

 

 


Three new KM3NeT papers

Recently, three KM3NeT papers were accepted by peer-reviewed scientific journals and came on line.

Note, that KM3NeT has an open science policy which means that all papers can be read open access, i.e. without a paywall.

 

1. Following up gravitational wave events – a scientific paper. In the paper ‘Searches for neutrino counterparts of gravitational wavesfrom the LIGO/Virgo third observing run with KM3NeT‘ we report the results of a neutrino follow-up study of gravitational wave sources detected by the LIGO-Virgo interferometers in 2019–2020.

The search focuses both on MeV neutrinos and high-energy neutrinos. No significant excess was observed for any of the sources. Upper limits on the neutrino emission from individual sources and the typical emission from binary black hole mergers were computed and compared with the constraints from other neutrino telescopes.

JCAP04(2024)026, DOI: 10.1088/1475-7516/2024/04/026

In the picture upper limits on the total neutrino fluence for both analyses in comparison with the results of other observatories.

 

2. Differential Sensitivity of ARCA – a scientific paper. In the paper titled ‘Differential Sensitivity of the KM3NeT/ARCA Detector to a Diffuse Neutrino Flux and to Point-like Source Emission: Exploring the Case of Starburst Galaxies, for the first time, KM3NeT presents the expected differential sensitivity of the full ARCA detector for both diffuse and point-like neutrino fluxes.

In particular, this study is applied to Starburst Galaxies, demonstrating that the ARCA detector, when completed, can trace TeV neutrinos from these sources. For instance, with ARCA it will be possible to discriminate between different astrophysical components in NGC 1068 after 3 years of data taking, strengthening the observations of the IceCube Neutrino Observatory.

In the pictures: (left) the sensitivities of the ARCA detector after 10 years of operation as a function of neutrino energy, compared to measurements of the IceCube neutrino observatory; (right) the discovery neutrino flux as a function of operation time.

Astroparticle Physics, Volume 162, DOI: 10.1016/j.astropartphys.2024.102990

 

3. Powering optical modules – a technical paper. The optical modules in the KM3NeT neutrino telescope in the deep Mediterranean Sea receive electrical power from the control station on the shore. An electronics board – dubbed the Power Board – in each optical module is described in the paper ‘The Power Board of the KM3NeT Digital Optical Module: design, upgrade, and production’. The board arranges powering individual components in the module at different voltage levels. The Power Board has been subjected to rigorous test to ensure reliable operation in the deep sea for more than a decade.

In the picture a photo of the Power Board with the various DC/DC converters generating the voltages needed.

Electronics 2024,13(11), 2044, DOI: 10.3390/electronics13112044

 

In addition, three new pre-prints were stored on the arXiv and submitted to the relevant scientific journals for peer-review:

  • Astronomy potential of KM3NeT/ARCA, arXiv:2402.08363, submitted to EPJ-C
  • Atmospheric muons measured with the KM3NeT detectors in comparison with updated numeric predictions, arXiv: 2403.11946, submitted to EPJ-C

  • Search for Neutrino Emission from GRB 221009A using the KM3NeT ARCA and ORCA detectors, arXiv: 2404.05354, submitted to JCAP

We will report on these once they are accepted for print by the journals.


An exciting Collaboration meeting in Bologna

5 March 2024 – The KM3NeT Collaboration met again, in Bologna and online, in February.

With so many data analyses ongoing, the meeting gave the opportunity to discuss a harvest of new results. As plans are being prepared for next massive sea campaigns to be performed for ARCA and ORCA this year, there was a lot to discuss also on the construction side.

During the meeting the recipients of the Giorgos Androulakis Prize, Agustín Sánchez Losa and Riccardo Bruno, were announced.

An application by UCLouvain to upgrade their membership from observer to full member was endorsed. Drexel University (Philadephia, US) and the University of Würzburg (Germany) were welcomed as observers, with the PIs Naoko Kurahashi Neilson and Sara Buson, respectively. Cássius Anderson Miquele de Melo from the Universidade Federal de Alfenas, Brasil joined as a new Associated Member. Welcome to all of you!

We also had some cheerful activities, with several colleagues participating in social games that lasted the full week. That was also an opportunity to meet new people from different institutes.

It was great to discuss of frontier science at the oldest University in Europe – many thanks to the local team for a superb organization!

The next Collaboration meeting will be in June in Texel, in the Netherlands.

 


Agustín Sánchez Losa and Riccardo Bruno awarded the Giorgos Androulakis Prize

5 March 2024 – During the recent KM3NeT collaboration meeting, in Bologna last month, the awardees of the second edition of the Giorgos Androulakis Prize were announced.

With the prize, KM3NeT recognises “exceptional contribution to the KM3NeT project that has a particularly high impact on the success or progress of KM3NeT”.

The prize is named after Giorgos Androulakis, the late KM3NeT Quality Manager, in order to commemorate Giorgos’ dedication to the project. The prize is awarded in two categories: Early-Career Scientists and Technicians & Engineers.

The winners of the second edition of the KM3NeT Giorgos Androulakis Prize are:

  • in the category Early Career Scientists: Agustín Sánchez Losa of IFIC, “for his long-standing, diverse and essential contributions to the KM3NeT detector calibration
  • in the category Technicians and Engineers: Riccardo Bruno of INFN Catania, for his dedicated, leading and vital contributions to the KM3NeT project, in particular in: setting up the software tool for functional and acceptance tests for WWRS DOMs; developing the White Rabbit system; construction of the WWRS DOM prototypes; his support of the integration teams producing WWRS DOMs

Congratulations to Agustín and Riccardo! With many thanks for your dedication to KM3NeT.

The winners of the Giorgos Androulakis Prize, Agustín Sánchez Losa (left) and Riccardo Bruno (right), receiving the prize from the KM3NeT spokesperson, Paschal Coyle