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Bled 2024: International Workshop on Lepton Number Violation
from
Monday, June 17, 2024 (9:00 AM)
to
Sunday, June 23, 2024 (5:00 PM)
Monday, June 17, 2024
6:00 PM
Arrival and welcome
Arrival and welcome
6:00 PM - 8:00 PM
Tuesday, June 18, 2024
9:30 AM
Didar Dobur: Experimental Search for Heavy Neutral Leptons at LHC
Didar Dobur: Experimental Search for Heavy Neutral Leptons at LHC
9:30 AM - 10:15 AM
10:15 AM
Kavica break
Kavica break
10:15 AM - 10:45 AM
10:45 AM
Jan Hajer: Heavy Neutrino-Antineutrino Oscillations
Jan Hajer: Heavy Neutrino-Antineutrino Oscillations
10:45 AM - 11:30 AM
11:30 AM
Arsenii Titov: Long-lived HNLs at the LHC: four-fermion operators
Arsenii Titov: Long-lived HNLs at the LHC: four-fermion operators
11:30 AM - 12:15 PM
12:15 PM
Lunch
Lunch
12:15 PM - 2:15 PM
2:15 PM
Richard Ruiz: Light mesons from light heavy neutrinos at colliders
Richard Ruiz: Light mesons from light heavy neutrinos at colliders
2:15 PM - 3:00 PM
In the context of the Phenomenological Type I Seesaw, we investigate the LHC’s sensitivity to exclusive, mesonic decay modes of long-lived, light (Dirac and Majorana) heavy neutrinos N when they are produced in the decays of W bosons. We present a new framework that combines massless QCD to describe N ’s production up to NLO in QCD via weak bosons with a low-energy effective field theory to describe N ’s decays to mesons. We provide a prescription for fast, numerical determination of N ’s partial and total widths for any mass and accounts for mesonic decay modes.
3:00 PM
Kavica break
Kavica break
3:00 PM - 3:30 PM
3:30 PM
Discussion
Discussion
3:30 PM - 5:00 PM
Wednesday, June 19, 2024
9:30 AM
Fabrizio Nesti: something with left-right symmetry at colliders
Fabrizio Nesti: something with left-right symmetry at colliders
9:30 AM - 10:15 AM
10:15 AM
Kavica break
Kavica break
10:15 AM - 10:45 AM
10:45 AM
Jonathan Kriewald: What's next in Left-Right
Jonathan Kriewald: What's next in Left-Right
10:45 AM - 11:30 AM
11:30 AM
Antonio Sidoti: Lepton Number Violation searches in ATLAS
Antonio Sidoti: Lepton Number Violation searches in ATLAS
11:30 AM - 12:15 PM
Lepton number is conserved in the Standard Model, therefore, any evidence for its violation would indicate the existence of new physics. This talk presents a review of the latest Lepton Number Violation searches performed by ATLAS at the LHC concerning Lepton Number Violation based on Run2 data.
12:15 PM
Lunch
Lunch
12:15 PM - 2:15 PM
3:00 PM
Kavica break
Kavica break
3:00 PM - 3:30 PM
3:45 PM
Boat Trip to the Bled Island
Boat Trip to the Bled Island
3:45 PM - 5:30 PM
7:00 PM
Workshop Dinner
Workshop Dinner
7:00 PM - 10:00 PM
Thursday, June 20, 2024
10:15 AM
Jernej Debevc: Experimental searches for type-II and type-III seesaw heavy leptons with the ATLAS detector
Jernej Debevc: Experimental searches for type-II and type-III seesaw heavy leptons with the ATLAS detector
10:15 AM - 11:00 AM
11:00 AM
Kavica break
Kavica break
11:00 AM - 11:30 AM
11:30 AM
Lara Čalić: Type II, Type III and tau fakes and background estimation (ABCD method)
Lara Čalić: Type II, Type III and tau fakes and background estimation (ABCD method)
11:30 AM - 12:15 PM
12:15 PM
Lunch
Lunch
12:15 PM - 2:15 PM
2:15 PM
Suchita Kulkarni: Exploring neutrino phenomenology in B-L extensions
Suchita Kulkarni: Exploring neutrino phenomenology in B-L extensions
2:15 PM - 3:00 PM
3:00 PM
Kavica break
Kavica break
3:00 PM - 3:30 PM
3:30 PM
Discussion
Discussion
3:30 PM - 5:00 PM
Friday, June 21, 2024
9:30 AM
Blaž Leban: LRSM: Search for Doubly Charged Higgs bosons with the ATLAS detector + LNV Higgs decays
Blaž Leban: LRSM: Search for Doubly Charged Higgs bosons with the ATLAS detector + LNV Higgs decays
9:30 AM - 10:15 AM
10:15 AM
Kavica break
Kavica break
10:15 AM - 10:45 AM
10:45 AM
Daniele Barducci: The effective theory of right-handed neutrinos at collider
Daniele Barducci: The effective theory of right-handed neutrinos at collider
10:45 AM - 11:30 AM
The see-saw model is the minimal framework which is able to explain the observed pattern of neutrino masses and oscillations. Right-handed neutrinos around the GeV scale are an ideal target for high-energy and high-intensity experiments. While intense experimental efforts have deeply tested this hypothesis, there remain the possibility that the origin of the neutrino sector lies in a more involved theory beyond the Standard Model, whose effect at the electroweak scale can be parametrized in terms of effective operators involving Standard Model and right-handed neutrino fields. I will discuss the associated phenomenology and show the prospects for detecting right-handed neutrinos effective interactions at present and future experimental facilities.
11:30 AM
Patrick Bolton: Probing Heavy Neutrino Magnetic Moments at the LHC Using Non-Pointing Photon Signatures
Patrick Bolton: Probing Heavy Neutrino Magnetic Moments at the LHC Using Non-Pointing Photon Signatures
11:30 AM - 12:15 PM
12:15 PM
Lunch
Lunch
12:15 PM - 2:15 PM
3:00 PM
Kavica break
Kavica break
3:00 PM - 3:30 PM
3:30 PM
Discussion
Discussion
3:30 PM - 5:00 PM
Saturday, June 22, 2024
9:30 AM
Chayan Majumdar: Exploring Alternative Left-Right Model: Neutrinoless double beta decay and Leptogenesis
Chayan Majumdar: Exploring Alternative Left-Right Model: Neutrinoless double beta decay and Leptogenesis
9:30 AM - 10:15 AM
Left-Right (LR) theories are one of the successful beyond Standard Model scenarios to provide a unified explanation to the origin of small neutrino masses and low-energy parity violation. However, conventional LR theory faces stringent constraints due to Flavor Changing Neutral Currents (FCNCs). We have explored an Alternative LR model (ALRM) that avoids FCNC constraints and introduces new physics signatures in decay and leptogenesis. We have shown that the new type of vector-scalar diagram contributes significantly in Neutrinoless Double Beta decay (NDBD). When the relevant charged Higgs boson has mass around 200 GeV, the half-life of decaying nucleus is approximately 10^{26} years for both Ge-76 and Xe-136, which falls well within the anticipated sensitivity of future NDBD experiments. Moreover, this model has the potential to explain the correct baryogengesis, even in the presence of small Dirac CP phase in right-handed neutrino sector and without requiring any more fine-tuning, by invoking the resonant leptogenesis.
10:15 AM
Kavica break
Kavica break
10:15 AM - 10:45 AM
10:45 AM
Chandan Hati: Lepton Number Violation Beyond Dimension 5 Weinberg Operator
Chandan Hati: Lepton Number Violation Beyond Dimension 5 Weinberg Operator
10:45 AM - 11:30 AM
11:30 AM
Closing and Farewell
Closing and Farewell
11:30 AM - 12:00 PM
Sunday, June 23, 2024