Neutrino Oscillation Workshop

NOW 2022 is the 11th workshop of a series started in 1998 in Amsterdam. In the years 2000-2016, this international workshop took place in Otranto (Lecce, Italy). This edition, as in 2018, will take place in Rosa Marina (Ostuni, Brindisi, Italy). NOW is locally organized by the INFN sections and Depts. of Physics of Bari and Lecce, ​and is one of the major conference series recognized by INSPIRES in the field of neutrino physics. The aim of the workshop is: to discuss Neutrino Oscillation Physics, in particular current experimental data and their theoretical interpretation; to outline future investigations of neutrino masses and mixings; and to explore the links with various research fields in Astroparticle Physics and Cosmology. The structure of the Workshop includes five sessions, with plenary and parallel talks on several topics of current interest. 
The sessions for the NOW 2022 edition are: 
• Session I - Oscillation parameters: present
• Session II - Oscillation parameters: future
• Session III - Multimessenger astrophysics
• Session IV - Neutrino masses, states and interactions
• Session V - Particle physics in the Cosmos

The Neutrino Oscillation Workshop NOW 2022 was held in Rosa Marina (Ostuni, Brindisi, Italy) from September 4th to September 11th, 2022. The meeting was organized by the Departments of Physics and by the Sections of the Istituto Nazionale di Fisica Nucleare (INFN) of Bari and Lecce, and was financially supported by the INFN, by the Universities of Bari and of Salento, and by the Italian Ministero dell’Università e della Ricerca (MUR) through the PRIN project 2017W4HA7S “NAT-NET: Neutrino and Astroparticle Theory Network”.

NOW 2022 is the eleventh of a series of Workshops, the first of which (NOW 1998) was held at NIKHEF (Amsterdam) in 1998. The second to ninth editions (NOW 2000, 2004, 2006, 2008, 2010, 2012, 2014, 2016) took place in Otranto (Lecce, Italy). The Rosa Marina Resort in Ostuni (Brindisi, Italy) hosted the tenth edition (NOW 2018) and, after the pandemic interruption in 2020, also the latest Workshop (NOW 2022). Further information about NOW 2022 and the whole Workshop series can be found at the website https://www.ba.infn.it/now  The inspiring idea of the NOW series is to organize a specialized meeting three months after the International Neutrino Conference, in order to stimulate the exchange of opinions in a truly workshop-like atmosphere, with a few survey talks, short contributions, and ample time for discussion among the participants.

The Workshop is focused on one of the hottest topics of contemporary physics, i.e., Neutrino Oscillations, together with its connections with particle physics, cosmic ray physics, astrophysics, and cosmology. Indeed, a growing emphasis is being given to astroparticle physics and multimessenger astronomy in the Workshop. Starting from NOW 2000, it was decided to publish the Proceedings of this series; in particular, the NOW 2000, 2004, 2006, 2008, 2010, 2012 and 2014 Proceedings appeared in Nucl. Phys. B (Proc. Suppl.), in Vols. 100, 145, 168, 188, 217, 237-238, and 265-266 respectively. Starting from NOW 2016, the Proceedings appeared as electronic versions in PoS (Proceedings of Science, SISSA, Italy), available at: https://pos.sissa.it/cgi-bin/reader/family.cgi?code=now

The structure of the NOW Workshop includes five sessions: (1) Oscillation parameters: present; (2) Oscillations parameters: future; (3) Multi-messenger astrophysics; (4) Neutrinos masses, states and interactions; (5) Particle physics in the cosmos. In the NOW 2022 poster theme, these sessions are shown as flags fluttering from the masts and the bowsprit of a large vessel with the wind in its sails. The vessel represents the NOW ​Workshop series, that has taken place since the year 2000 along the Apulian coasts (from Otranto to Ostuni), and has witnessed many fascinating journeys across neutrino and astroparticle physics. The lands barely visible on the horizon, and an undefined direction of the compass rose, remind us that new physics awaits discovery in these fields. These Proceedings can thus be considered as an up-to-date survey of the status and prospects of Neutrino Oscillation Physics (and of closely related fields in Astroparticle Physics) as of 2022.  
We would like to thank all the participants, a total of about 126 physicists coming from 19 different countries, and in particular the speakers and the conveners who, in collaboration with the members of the Organizing Committee, contributed with enthusiasm to the scientific success of the Workshop.

Special thanks go to all the people actively involved in the organization of the Workshop. The smooth running of the meeting was due to the invaluable work of the Secretariat, formed by Daniela Dell’Anna (Lecce) and Antonio Silvestri (Bari), to the assistance of the INFN administrative managers Francesca Assisi (Bari) and Carla Gentile (Lecce), to the precious help of the System Manager Enrico Fasanelli and of the Technical Assistants Antonio Forte and Fulvio Ricciardi (Lecce). Warm thanks are also due to the PhD students Giuseppe Lucente and Francesco Sivo for their enthusiastic collaboration in the local organization, and to all the people who provided the workshop services. The organizers are also grateful to the official NOW 2022 Agency “I Viaggi di Salomone” (Bari, Italy) for providing the Workshop services.

Organizing Committee

Paolo Bernardini* Lecce
Gabriella Catanesi Bari
Giampaolo Co’ Lecce
Marilisa De Serio Bari
Gianluigi Fogli* Bari
Eligio Lisi* Bari
Antonio Marrone Bari
Gennaro Miele Napoli
Alessandro Mirizzi Bari
Daniele Montanino Lecce
Antonio Palazzo Bari
Saverio Simone Bari
Antonio Surdo Lecce

* Chairpersons

Scientific Advisory Committee

J. Beacom CCAPP Columbus
N. Bell Melbourne
J. Cao IHEP Beijing
M. Chen Queen’s U. Canada
J. Ellis London
S. Goswami Ahmedabad
S. Hannestad Aahrus
D. Harris FNAL and Toronto
T. Kajita Tokyo
S. Katsanevas EGO and CNRS
T. Lasserre CEA France
M. Lindner MPI Heidelberg
E. Resconi TU Munich
Eun-Suk Seo U. Maryland
A.Yu. Smirnov MPI Heidelberg
Y. Suzuki Tokyo
J.W.F. Valle Valencia
E. Waxmann Weizmann Inst.

Sponsors

Dipartimento Interateneo di Fisica “Michelangelo Merlin”, Bari
Dipartimento di Matematica e Fisica “Ennio de Giorgi,” Lecce
Università di Bari
Università del Salento
Istituto Nazionale di Fisica Nucleare (INFN)
Ministero dell’Università e della Ricerca (MUR)

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