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Probing the Neutrino Seesaw Scale with Gravitational Waves
Bartosz Fornal, Dyori Polynice, Luka Thompson
Neutrinos are the most elusive particles of the Standard Model. The physics behind their masses remains unknown and requires introducing new particles and interactions. An elegant…
Shedding Light on Dark Sectors with Gravitational Waves
Nelleke Bunji, Bartosz Fornal, Kassandra Garcia
The nature of dark matter remains one of the greatest unsolved mysteries in elementary particle physics. It might well be that the dark matter particle belongs to a dark sector com…
Neutron Dark Decay
Bartosz Fornal
There exists a puzzling disagreement between the results for the neutron lifetime obtained in experiments using the beam technique versus those relying on the bottle method. A poss…
Gravitational Wave Signatures of Gauged Baryon and Lepton Number
Jessica Bosch, Zoraida Delgado, Bartosz Fornal +1
We demonstrate that novel types of gravitational wave signatures arise in theories with new gauge symmetries broken at high energy scales. For concreteness, we focus on models with…
Testing Unification and Dark Matter with Gravitational Waves
Bartosz Fornal, Kassandra Garcia, Erika Pierre
We propose to search for a new type of gravitational wave signature relevant for particle physics models with symmetries broken at vastly different energy scales. The spectrum cont…
Probing Early Universe Supercooled Phase Transitions with Gravitational Wave Data
Charles Badger, Bartosz Fornal, Katarina Martinovic +8
We investigate the reach of the LIGO/Virgo/KAGRA detectors in the search for signatures of first-order phase transitions in the early Universe. Utilising data from the first three…
Asymmetric Dark Matter from Gravitational Waves
Bartosz Fornal, Erika Pierre
We investigate the prospects for probing asymmetric dark matter models through their gravitational wave signatures. We concentrate on a theory extending the Standard Model gauge sy…
New Physics Searches at Kaon and Hyperon Factories
Evgueni Goudzovski, Diego Redigolo, Kohsaku Tobioka +61
Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths…
The Strange Physics of Dark Baryons
Gonzalo Alonso-Álvarez, Gilly Elor, Miguel Escudero +3
Dark sector particles at the GeV scale carrying baryon number provide an attractive framework for understanding the origin of dark matter and the matter-antimatter asymmetry of the…
Earth Shielding and Daily Modulation from Electrophilic Boosted Dark Particles
Yifan Chen, Bartosz Fornal, Pearl Sandick +4
Boosted dark particles of astrophysical origin can lead to nonstandard nuclear or electron recoil signals in direct detection experiments. %It has been shown that this interpretati…
Gravitational Waves from Mini-Split SUSY
Bartosz Fornal, Barmak Shams Es Haghi, Jiang-Hao Yu +1
We show that color-breaking vacua may develop at high temperature in the Mini-Split Supersymmetry (SUSY) scenario. This can lead to a nontrivial cosmological history of the Univers…
Baryonic and Leptonic GeV Dark Matter
Bartosz Fornal, Alec Hewitt, Yue Zhao
We perform a systematic analysis of models with GeV-scale dark matter coupled to baryons and leptons. Such theories provide a natural framework to explain the matter-antimatter asy…
Baryon and Lepton Number Violation from Gravitational Waves
Bartosz Fornal, Barmak Shams Es Haghi
We describe a unique gravitational wave signature for a class of models with a vast hierarchy between the symmetry breaking scales. The unusual shape of the signal is a result of t…
Neutron's Dark Secret
Bartosz Fornal, Benjamin Grinstein
The existing discrepancy between neutron lifetime measurements in bottle and beam experiments has been interpreted as a sign of the neutron decaying to dark particles. We summarize…
Boosted Dark Matter Interpretation of the XENON1T Excess
Bartosz Fornal, Pearl Sandick, Jing Shu +2
We propose boosted dark matter (BDM) as a possible explanation for the excess of keV electron recoil events observed by XENON1T. BDM particles have velocities much larger than thos…
Gravitational Wave Signatures of Lepton Universality Violation
Bartosz Fornal
We analyze the prospects for using gravitational waves produced in early universe phase transitions as a complementary probe of the flavor anomalies in B meson decays. We focus on…
Dark Matter Capture by Atomic Nuclei
Bartosz Fornal, Benjamin Grinstein, Yue Zhao
We propose a new strategy to search for a particular type of dark matter via nuclear capture. If the dark matter particle carries baryon number, as motivated by a class of theoreti…
Comment on "Neutron lifetime and dark decay of the neutron and hydrogen''
Bartosz Fornal, Benjamin Grinstein
The manuscript by Berezhiani (arXiv:1812.11089) proposes a model that has the neutron decaying into a mirror neutron with a branching fraction of 1%, alleviating the tension betwee…
Left-Right SU(4) Vector Leptoquark Model for Flavor Anomalies
Bartosz Fornal, Sri Aditya Gadam, Benjamin Grinstein
Building on our recent proposal to explain the experimental hints of new physics in meson decays within the framework of Pati-Salam quark-lepton unification, through the intera…
Dark Side of the Neutron?
Bartosz Fornal, Benjamin Grinstein
We discuss our recently proposed interpretation of the discrepancy between the bottle and beam neutron lifetime experiments as a sign of a dark sector. The difference between the o…
Neutron Lifetime Discrepancy as a Sign of a Dark Sector?
Bartosz Fornal, Benjamin Grinstein
We summarize our recent proposal of explaining the discrepancy between the bottle and beam measurements of the neutron lifetime through the existence of a dark sector, which the ne…
Grand Unified Theory with a Stable Proton
Bartosz Fornal, Benjamin Grinstein
We demonstrate that a phenomenologically viable four-dimensional grand unified theory with no proton decay can be constructed. This is done in the framework of the minimal non-supe…
Electroweak Gauge Boson Parton Distribution Functions
Bartosz Fornal, Aneesh V. Manohar, Wouter J. Waalewijn
Transverse and longitudinal electroweak gauge boson parton distribution functions (PDFs) are computed in terms of deep-inelastic scattering structure functions, following the recen…
Dark Matter Interpretation of the Neutron Decay Anomaly
Bartosz Fornal, Benjamin Grinstein
There is a long-standing discrepancy between the neutron lifetime measured in beam and bottle experiments. We propose to explain this anomaly by a dark decay channel for the neutro…