477 citations · 7k across the 112 of their papers we have counts for
96 papers · 1 filter
Probing CP-violating top-quark dipole moments with tomographic observables
Maxim Perelstein, Minal Shaik, Taewook Youn
Quantum tomography program reconstructs the full spin density matrix of top-quark pairs from dilepton angular correlations at both electron-positron and hadron colliders. We use sy…
WIMP Meets ALP: Coherent Freeze-Out of Dark Matter
Steven Ferrante, Maxim Perelstein, Bingrong Yu
We consider the cosmological history of a weakly interacting massive particle (WIMP) coupled to a light axion-like particle (ALP) via a quadratic coupling. Although the coupling is…
Collider Searches for Near-Continuum Dark Matter
Steven Ferrante, Lillian Luo, Maxim Perelstein +1
We study collider constraints on the near-continuum dark matter model, in which the dark sector consists of a tower of closely spaced states with weak-scale masses coupled to the S…
Sommerfeld Enhancement from Quantum Forces for Dark Matter
Steven Ferrante, Maxim Perelstein, Bingrong Yu
Quantum forces are long-range interactions that arise only at the loop level. In this work, we study the Sommerfeld enhancement of dark matter (DM) annihilation cross sections caus…
Conformal Freeze-in Dark Matter: 5D Dual and Phase Transition
Lillian Luo, Maxim Perelstein
Conformal Freeze-in (COFI) scenario postulates a dark sector described by a conformal field theory (CFT) at energies above the ``gap scale" in the keVMeV range. At the gap scale…
Conformal Freeze-In from Neutrino Portal
Sungwoo Hong, Maxim Perelstein, Taewook Youn
We study a scenario where a dark sector, described by a Conformal Field Theory (CFT), interacts with the Standard Model through the neutrino portal. In this setup, conformal invari…
Anomaly Detection in Presence of Irrelevant Features
Marat Freytsis, Maxim Perelstein, Yik Chuen San
Experiments at particle colliders are the primary source of insight into physics at microscopic scales. Searches at these facilities often rely on optimization of analyses targetin…
Collider Signatures of Near-Continuum Dark Matter
Steven Ferrante, Seung J. Lee, Maxim Perelstein
In this paper we study a near-continuum dark matter model, in which dark sector consists of a tower of closely spaced states with weak-scale masses. We construct a five-dimensional…
Statement from the American Linear Collider Committee to the P5 subpanel
J. A. Bagger, S. Belomestnykh, P. C. Bhat +15
This statement from the American Linear Collider Committee to the P5 subpanel has three purposes. It presents a brief summary of the case for an Higgs factory that has eme…
Sub-GeV dark matter search at ILC beam dumps
Kento Asai, Sho Iwamoto, Maxim Perelstein +2
Light dark matter particles may be produced in electron and positron beam dumps of the International Linear Collider (ILC). We propose an experimental setup to search for such even…
Dark Matter from a Conformal Dark Sector
Sungwoo Hong, Gowri Kurup, Maxim Perelstein
We consider theories in which a dark sector is described by a Conformal Field Theory (CFT) over a broad range of energy scales. A coupling of the dark sector to the Standard Model…
Dark Z at the International Linear Collider
Yik Chuen San, Maxim Perelstein, Philip Tanedo
A dark Z is a massive Abelian gauge boson which is coupled to the Standard Model through both kinetic and mass mixing with the electroweak sector. We study the phenomenology of the…
Z-portal Continuum Dark Matter
Csaba Csáki, Sungwoo Hong, Gowri Kurup +3
We examine the possibility that dark matter (DM) consists of a gapped continuum, rather than ordinary particles. A Weakly-Interacting Continuum (WIC) model, coupled to the Standard…
Continuum Dark Matter
Csaba Csáki, Sungwoo Hong, Gowri Kurup +3
We initiate the study of dark matter models based on a gapped continuum. Dark matter consists of a mixture of states with a continuous mass distribution, which evolves as the unive…
Dark Matter as a Solution to Muonic Puzzles
Maxim Perelstein, Yik Chuen San
We propose a simple model in which dark matter particle exchanges mediate a new quantum force between muons and nucleons, resolving the proton charge radius puzzle. At the same tim…
Improved Neural Network Monte Carlo Simulation
I-Kai Chen, Matthew D. Klimek, Maxim Perelstein
The algorithm for Monte Carlo simulation of parton-level events based on an Artificial Neural Network (ANN) proposed in arXiv:1810.11509 is used to perform a simulation of $H\to 4\…
ILC Study Questions for Snowmass 2021
Keisuke Fujii, Christophe Grojean, Michael E. Peskin +32
To aid contributions to the Snowmass 2021 US Community Study on physics at the International Linear Collider and other proposed colliders, we present a list of study quest…
Conformal Freeze-In of Dark Matter
Sungwoo Hong, Gowri Kurup, Maxim Perelstein
We present the conformal freeze-in (COFI) scenario for dark matter production. At high energies, the dark sector is described by a gauge theory flowing towards a Banks-Zaks fixed p…
Clockwork Neutrinos
Sungwoo Hong, Gowri Kurup, Maxim Perelstein
Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. In this paper we study the simplest CW neutrino model,…
Naturalness Sum Rules and Their Collider Tests
Csaba Csáki, Felipe Ferreira De Freitas, Li Huang +3
We present the most general sum rules reflecting the cancellation of ultraviolet divergences in the Higgs potential in weakly-coupled, natural extensions of the Standard Model. The…
Neural Network-Based Approach to Phase Space Integration
Matthew D. Klimek, Maxim Perelstein
Monte Carlo methods are widely used in particle physics to integrate and sample probability distributions (differential cross sections or decay rates) on multi-dimensional phase sp…
Infrared Safety of a Neural-Net Top Tagging Algorithm
Suyong Choi, Seung J. Lee, Maxim Perelstein
Neural network-based algorithms provide a promising approach to jet classification problems, such as boosted top jet tagging. To date, NN-based top taggers demonstrated excellent p…
The role of positron polarization for the inital GeV stage of the International Linear Collider
Keisuke Fujii, Christophe Grojean, Michael E. Peskin +22
The International Linear Collider is now proposed with a staged machine design, with the first stage at ~250 GeV and an integrated luminosity goal of 2~ab. One of…
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
Marco Battaglieri, Alberto Belloni, Aaron Chou +248
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.