The 16th Particle Physics Phenomenology Workshop

Session

Parallel Session R620

17 Jun 2026, 14:25

Physics Building R620 (NTHU)

Conveners

Parallel Session R620

• Chrisna Setyo Nugroho (IPB University)

Parallel Session R620

• Soojin Lee (National Tsing Hua University)

22. Gravitational Yukawa Potential Search with Gravity Field Calibrator and Interferometric Gravitational-Wave Detector

Miftahul Maarif (National Central University)

17/06/2026, 14:25

Poster presentation

Investigating potential deviations from Newtonian gravity provides a vital pathway toward discovering "new physics" beyond the Standard Model. This study introduces an experimental approach to search for inverse-square-law (ISL) violations at the meter scale by utilizing a laser-interferometric gravitational-wave detector with gravity field calibrators (GCal). The GCal employs rotating...

35. Gravitational waves from CP domain wall collapse and electron EDM in a complex singlet model with dimension-five Yukawa interactions

Hieu The Pham (Department of Physics, National Tsing Hua University)

17/06/2026, 14:35

Poster presentation

We study the interplay between gravitational waves (GWs) from domain wall collapse and the electron electric dipole moment (EDM) in a complex singlet extension of the Standard Model with dimension-five Yukawa interactions. In this model, CP-related degenerate vacua lead to the formation of CP domain walls. While the resulting GWs probe the scalar vacuum structure, they do not inherently...

50. Emergent Neutrino Texture Geometry from Dark Matter and Lepton Flavor Violation in the Scotogenic Model

Dr Avinanda Chaudhuri (Brahmananda Keshab Chandra College)

17/06/2026, 14:45

Oral presentation

We study the emergence of approximate neutrino texture structures in the minimal scotogenic model using large-scale Casas--Ibarra parameter scans subject to dark matter and lepton flavor violation constraints. We show that phenomenological consistency conditions can dynamically induce approximate suppressions in specific entries of the neutrino mass matrix without imposing explicit flavor...

1. TeV-scale unification of light dark matter and neutrino mass

Shu-Yu HO (Academia Sinica)

17/06/2026, 15:10

Oral presentation

In this talk, we demonstrate that TeV-scale heavy neutral leptons (HNLs) responsible for inverse-seesaw neutrino mass generation can simultaneously fix the cosmological abundance and decay properties of dark matter (DM). The spontaneous breaking of lepton number gives rise to a pseudo-Nambu-Goldstone boson that serves as a light DM candidate, whose mass originates from a small explicit...

47. Phenomenology of transverse momentum dependent parton distribution functions in baryons and mesons

Valentin Moos (NYCU)

17/06/2026, 16:00

Oral presentation

In my talk, I will motivate the study of transverse momentum dependent (TMD) parton distribution functions (PDFs) and explain the framework of factorisation of a scattering process and parametrising the TMDPDFs.

I will demonstrate what we can achieve with this formalism and discuss the state of the art by discussing results obtained by different groups.

In particular I will discuss our...

17. Beyond-Mean-Field Models of Nuclear Structure for Dark Matter Detection

Navneet Krishnan (Australian National University)

17/06/2026, 16:25

Oral presentation

Weakly-Interacting Massive Particles (WIMPs) remain one of the leading candidates for dark matter. One aspect of the search for such particles is direct detection, where terrestrial detectors aim to observe or constrain interactions between WIMPs and nuclei. This requires the application of a nuclear structure model in order to effectively predict the potential nuclear responses to WIMP...

21. Uncovering Long-Lived Doubly Charged Scalars

Nivedita Ghosh (Kavli IPMU (WPI), UTIAS, University of Tokyo)

17/06/2026, 16:50

Oral presentation

We propose a new search strategy for long-lived doubly charged scalars at future lepton colliders. These particles arise in models that explain tiny neutrino masses via the Type-II seesaw mechanism. For certain masses and parameters, they can travel a measurable distance before decaying into same-sign muon pairs, producing clear displaced-vertex signatures. We study their production at the...

45. Shedding light on Dark Matter Using Extended Higgs Sectors

Juhi Dutta (NTU, Taiwan)

17/06/2026, 17:15

Oral presentation

Dark matter remains one of the most compelling indications of new physics beyond the Standard Model. In this talk, I will present theoretical frameworks accommodating dark matter candidates, focusing on their dark matter phenomenology and how their signatures can be explored at collider experiments, alongside direct and indirect detection searches. I will place particular emphasis on extended...

12. Search for long-lived triplet scalars at hadron colliders

Rituparna Ghosh (Indian Institute of Technology Kanpur)

Oral presentation

The absence of conclusive evidence for beyond the Standard Model (BSM) physics at the Large Hadron Collider (LHC) motivates the exploration of unconventional signatures alongside precision measurements. In this work, we investigate the Georgi-Machacek model, an extension of the Standard Model scalar sector with one complex and one real $SU(2)$ triplet, which allows sizable triplet vacuum...

34. Top Quark Pair Production and Decay: The 1-Higgs-Singlet Model and Pseudoscalar Decay

Vishakha Lingadahally (Royal Holloway, University of London)

Oral presentation

The process of top quark pair production via the decay of the scalars in the 1-Higgs-Singlet extension of the Standard Model is associated with large interference effects between the loop-induced SM-like Higgs and heavy Higgs amplitudes, and the QCD continuum background. We attach leptonic decays to the di-top final state at NLO and study the effects of spin correlation in the process. We also...