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Expected tracking performance of the ATLAS Inner Tracker at the High-Luminosity LHC

Journal of Instrumentation IOP Publishing 20:02 (2025) P02018

Authors:

G Aad, E Aakvaag, B Abbott, S Abdelhameed, K Abeling, NJ Abicht, SH Abidi, M Aboelela, A Aboulhorma, H Abramowicz, Y Abulaiti, BS Acharya, A Ackermann, C Adam Bourdarios, L Adamczyk, SV Addepalli, MJ Addison, J Adelman, A Adiguzel, T Adye, AA Affolder, Y Afik, MN Agaras, A Aggarwal

Abstract:

The high-luminosity phase of LHC operations (HL-LHC), will feature a large increase in simultaneous proton-proton interactions per bunch crossing up to 200, compared with a typical leveling target of 64 in Run 3. Such an increase will create a very challenging environment in which to perform charged particle trajectory reconstruction, a task crucial for the success of the ATLAS physics program, and will exceed the capabilities of the current ATLAS Inner Detector (ID). A new all-silicon Inner Tracker (ITk) will replace the current ID in time for the start of the HL-LHC. To ensure successful use of the ITk capabilities in Run 4 and beyond, the ATLAS tracking software has been successfully adapted to achieve state-of-the-art track reconstruction in challenging high-luminosity conditions with the ITk detector. This paper presents the expected tracking performance of the ATLAS ITk based on the latest available developments since the ITk technical design reports.

Initial measurement of reactor antineutrino oscillation at SNO+

European Physical Journal C Springer Nature 85:1 (2025) 17

Authors:

A Allega, MR Anderson, S Andringa, M Askins, DJ Auty, A Bacon, J Baker, F Bar茫o, N Barros, R Bayes, EW Beier, TS Bezerra, A Bialek, SD Biller, E Blucher, E Caden, EJ Callaghan, M Chen, S Cheng, B Cleveland, D Cookman, J Corning, MA Cox, R Dehghani, J Deloye, MM Depatie, F Di Lodovico, C Dima, J Dittmer, KH Dixon, MS Esmaeilian, E Falk, N Fatemighomi, R Ford, A Gaur, OI Gonz谩lez-Reina, D Gooding, C Grant, J Grove, S Hall, AL Hallin, D Hallman, WJ Heintzelman, RL Helmer, C Hewitt, V Howard, B Hreljac, J Hu, P Huang, R Hunt-Stokes, SMA Hussain, AS In谩cio, CJ Jillings, S Kaluzienski, T Kaptanoglu, H Khan, J Kladnik, JR Klein, LL Kormos, B Krar, C Kraus, CB Krauss, T Kroupov谩, C Lake, L Lebanowski, C Lefebvre, V Lozza, M Luo, A Maio, S Manecki, J Maneira, RD Martin, N McCauley, AB McDonald, C Mills, G Milton, A Molina Colina, D Morris, I Morton-Blake, M Mubasher, S Naugle, LJ Nolan, HM O鈥橩eeffe, GD Orebi Gann, J Page, K Paleshi, W Parker, J Paton, SJM Peeters, L Pickard, B Quenallata, P Ravi, A Reichold, S Riccetto, J Rose, R Rosero, I Semenec, J Simms, P Skensved, M Smiley, J Smith, R Svoboda, B Tam, J Tseng, E V谩zquez-J谩uregui, JGC Veinot, CJ Virtue, M Ward, JJ Weigand, JR Wilson, JD Wilson, A Wright, S Yang, M Yeh, Z Ye, S Yu, Y Zhang, K Zuber, A Zummo

Measurement of the B8 solar neutrino flux using the full SNO+ water phase dataset

Physical Review D American Physical Society (APS) 110:12 (2024) 122003

Authors:

A Allega, MR Anderson, S Andringa, M Askins, DM Asner, DJ Auty, A Bacon, F Bar茫o, N Barros, R Bayes, EW Beier, A Bialek, SD Biller, E Blucher, E Caden, EJ Callaghan, M Chen, S Cheng, B Cleveland, D Cookman, J Corning, MA Cox, R Dehghani, J Deloye, MM Depatie, F Di Lodovico, C Dima, J Dittmer, KH Dixon, MS Esmaeilian, E Falk, N Fatemighomi, R Ford, A Gaur, OI Gonz谩lez-Reina, D Gooding, C Grant, J Grove, S Hall, AL Hallin, D Hallman, WJ Heintzelman, RL Helmer, C Hewitt, B Hreljac, J Hu, P Huang, R Hunt-Stokes, SMA Hussain, AS In谩cio, CJ Jillings, S Kaluzienski, T Kaptanoglu, J Kladnik, JR Klein, LL Kormos, B Krar, C Kraus, CB Krauss, T Kroupov谩, C Lake, L Lebanowski, C Lefebvre, V Lozza, M Luo, A Maio, S Manecki, J Maneira, RD Martin, N McCauley, AB McDonald, G Milton, D Morris, M Mubasher, S Naugle, LJ Nolan, HM O鈥橩eeffe, GD Orebi Gann, J Page, K Paleshi, W Parker, J Paton, SJM Peeters, L Pickard, B Quenallata, P Ravi, A Reichold, S Riccetto, J Rose, R Rosero, I Semenec, J Simms, P Skensved, M Smiley, R Svoboda, B Tam, J Tseng, E V谩zquez-J谩uregui, CJ Virtue, M Ward, JR Wilson, JD Wilson, A Wright, S Yang, M Yeh, Z Ye, S Yu, Y Zhang, K Zuber, A Zummo

Data-driven core collapse supernova multilateration with first neutrino events

ArXiv 2410.11984 (2024)

Authors:

Farrukh Azfar, Jeff Tseng, Marta Colomer Molla, Kate Scholberg, Alec Habig, Segev BenZvi, Melih Kara, James Kneller, Jost Migenda, Dan Milisavljevic, Evan O'Connor

The SNEWS 2.0 alert software for the coincident detection of neutrinos from core-collapse supernovae

Journal of Instrumentation IOP Publishing 19:10 (2024) P10017

Authors:

M Kara, S Torres-Lara, AL Baxter, S BenZvi, M Colomer Molla, A Habig, JP Kneller, M Lai, RF Lang, M Linvill, D Milisavljevic, J Migenda, C Orr, K Scholberg, J Smolsky, J Tseng, CD Tunnell, J Vasel, A Sheshukov

Abstract:

The neutrino signal from the next galactic core-collapse supernova will provide an invaluable early warning of the explosion. By combining the burst trigger from several neutrino detectors, the location of the explosion can be triangulated minutes to hours before the optical emission becomes visible, while also reducing the rate of false-positive triggers. To enable multi-messenger follow-up of nearby supernovae, the SuperNova Early Warning System 2.0 (SNEWS 2.0) will produce a combined alert using a global network of neutrino detectors. This paper describes the trigger publishing and alert formation framework of the SNEWS 2.0 network. The framework is built on the HOPSKOTCH publish-subscribe system to easily incorporate new detectors into the network, and it implements a coincidence system to form alerts and estimate a false-positive rate for the combined triggers. The paper outlines the structure of the SNEWS 2.0 software and the initial testing of coincident signals.