70 citations · 224 across the 10 of their papers we have counts for
10 papers
String Theory and Grand Unification Suggest a Sub-Microelectronvolt QCD Axion
Joshua N. Benabou, Katherine Fraser, Mario Reig +1
Axions, grand unification, and string theory are each compelling extensions of the Standard Model. We show that combining these frameworks imposes strong constraints on the QCD axi…
Zero Modes of Massive Fermions Delocalize from Axion Strings
Hengameh Bagherian, Katherine Fraser, Samuel Homiller +1
Massless chiral excitations can arise from the interactions between a fermion and an axion string, propagating along the string and allowing it to superconduct. The properties of t…
Wrinkles in the Froggatt-Nielsen Mechanism and Flavorful New Physics
Pouya Asadi, Arindam Bhattacharya, Katherine Fraser +2
When the Froggatt-Nielsen mechanism is used to explain the Standard Model flavor hierarchy, new physics couplings are also determined by the horizontal symmetry. However, additiona…
Oblique Lessons from the Mass Measurement at CDF II
Pouya Asadi, Cari Cesarotti, Katherine Fraser +2
The CDF collaboration recently reported a new precise measurement of the boson mass with a central value significantly larger than the SM prediction. We explore the effec…
Challenges for Unsupervised Anomaly Detection in Particle Physics
Katherine Fraser, Samuel Homiller, Rashmish K. Mishra +2
Anomaly detection relies on designing a score to determine whether a particular event is uncharacteristic of a given background distribution. One way to define a score is to use au…
Axion Mass from Magnetic Monopole Loops
JiJi Fan, Katherine Fraser, Matthew Reece +1
We show that axions interacting with abelian gauge fields obtain a potential from loops of magnetic monopoles. This is a consequence of the Witten effect: the axion field causes th…
Parameter Inference from Event Ensembles and the Top-Quark Mass
Forrest Flesher, Katherine Fraser, Charles Hutchison +2
One of the key tasks of any particle collider is measurement. In practice, this is often done by fitting data to a simulation, which depends on many parameters. Sometimes, when the…
A Closer Look at CP-Violating Higgs Portal Dark Matter as a Candidate for the GCE
Katherine Fraser, Aditya Parikh, Weishuang Linda Xu
A statistically significant excess of gamma rays has been reported and robustly confirmed in the Galactic Center over the past decade. Large local dark matter densities suggest tha…
Axion Periodicity and Coupling Quantization in the Presence of Mixing
Katherine Fraser, Matthew Reece
Mixing of axion fields is widely used to generate EFTs with phenomenologically advantageous features, such as hierarchies between axion couplings to different gauge fields and/or l…
Jet Charge and Machine Learning
Katherine Fraser, Matthew D. Schwartz
Modern machine learning techniques, such as convolutional, recurrent and recursive neural networks, have shown promise for jet substructure at the Large Hadron Collider. For exampl…