Showing 2018 · hep-phShow all

22 papers · 2 filters

hep-ph2018★ 21 cited

Six Top Messages of New Physics at the LHC

Huayong Han, Li Huang, Teng Ma +3

Six top signatures provide a novel probe of new physics. We discuss production of six top quarks as the decay products of a pair of top partners in the setting of a composite Higgs…

hep-ph2018★ 22 cited

Natural Seesaw and Leptogenesis from Hybrid of High-Scale Type I and TeV-Scale Inverse

Kaustubh Agashe, Peizhi Du, Majid Ekhterachian +3

We develop an extension of the basic inverse seesaw model which addresses simultaneously two of its drawbacks, namely, the lack of explanation of the tiny Majorana mass term fo…

hep-ph2018★ 22 cited

Implementing the inverse type-II seesaw mechanism into the 3-3-1 model

Carlos Antônio de Sousa Pires, Felipe Ferreira de Freitas, Jing Shu +2

After the LHC is turning on and accumulating more data, the TeV scale seesaw mechanisms for small neutrino masses in the form of inverse seesaw mechanisms are gaining more and more…

hep-ph2018★ 8 cited

Role of Bloch Waves in baryon-number violating processes

Yu-Cheng Qiu, S. -H. Henry Tye

In the Bloch-wave approach to estimate the baryon-number-violating scattering cross section in the standard electroweak theory in the laboratory, we clarify the relation between th…

hep-ph2018★ 38 cited

U-Spin Sum Rules for CP Asymmetries of Three-Body Charmed Baryon Decays

Yuval Grossman, Stefan Schacht

Triggered by a recent LHCb measurement and prospects for Belle II, we derive U-spin symmetry relations between integrated CP asymmetries of three-body and decays. T…

hep-ph2018★ 4 cited

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…

hep-ph2018★ 30 cited

Continuum Naturalness

Csaba Csáki, Gabriel Lee, Seung J. Lee +2

We present a novel class of composite Higgs models in which the top and gauge partners responsible for cutting off the Higgs quadratic divergences form a continuum. The continuum s…

hep-ph2018★ 15 cited

Confronting SUSY SO(10) with updated Lattice and Neutrino Data

Thomas Deppisch, Stefan Schacht, Martin Spinrath

We present an updated fit of supersymmetric SO(10) models to quark and lepton masses and mixing parameters. Including latest results from lattice QCD determinations of quark masses…

hep-ph2018★ 13 cited

Emergence of Maximal Symmetry

Csaba Csáki, Teng Ma, Jing Shu +1

An emergent global symmetry of the composite sector (called maximal symmetry) can soften the ultraviolet behavior of the Higgs potential and also significantly modify its structure…

hep-ph2018★ 70 cited

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…

hep-ph2018★ 25 cited

Investigating the Topology Dependence of Quark and Gluon Jets

Samuel Bright-Thonney, Benjamin Nachman

As most target final states for searches and measurements at the Large Hadron Collider have a particular quark/gluon composition, tools for distinguishing quark- from gluon-initiat…

hep-ph2018★ 17 cited

Detecting a Boosted Diboson Resonance

Kaustubh Agashe, Jack H. Collins, Peizhi Du +3

New light scalar particles in the mass range of hundreds of GeV, decaying into a pair of bosons can appear in several extensions of the SM. The focus of collider studies for…

hep-ph2018★ 190 cited

Axion-Like Particles at Future Colliders

Martin Bauer, Mathias Heiles, Matthias Neubert +1

Axion-like particles (ALPs) are pseudo Nambu-Goldstone bosons of spontaneously broken global symmetries in high-energy extensions of the Standard Model (SM). This makes them a prim…

hep-ph2018★ 7 cited

Adding Pseudo-Observables to the Four-Lepton Experimentalist's Toolbox

James S. Gainer, Martín González-Alonso, Admir Greljo +12

The "golden" channel, in which the newly-discovered Higgs boson decays to four leptons by means of intermediate vector bosons, is important for determining the properties of the Hi…

hep-ph2018★ 14 cited

Re-visiting the bounds on hydrogen-antihydrogen oscillations from diffuse -ray surveys

Yuval Grossman, Wee Hao Ng, Shamayita Ray

Surveys of diffuse -ray in the interstellar medium (ISM) can be used to probe hydrogen-antihydrogen oscillations, by detecting the -ray emission from antihydrogen annihilatio…

hep-ph2018★ 385 cited

Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case

David Curtin, Marco Drewes, Matthew McCullough +85

We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of…

hep-ph2018★ 9 cited

Measuring CP violation in using excited charm mesons

Daniel Aloni, Yuval Grossman, Abner Soffer

There is growing evidence for deviation from the standard model predictions in the ratios between semi-tauonic and semi-leptonic decays, known as the puzzle. If th…

hep-ph2018★ 54 cited

Effective Field Theory after a New-Physics Discovery

Stefan Alte, Matthias König, Matthias Neubert

When a new heavy particle is discovered at the LHC or at a future high-energy collider, it will be interesting to study its decays into Standard Model particles using an effective…

hep-ph2018★ 35 cited

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…

hep-ph2018★ 13 cited

Hybrid seesaw leptogenesis and TeV singlets

Kaustubh Agashe, Peizhi Du, Majid Ekhterachian +3

The appealing feature of inverse seesaw models is that the Standard Model (SM) neutrino mass emerges from the exchange of TeV scale singlets with sizable Yukawa couplings, which ca…

hep-ph2018★ 32 cited

Dark quarkonium formation in the early universe

Michael Geller, Sho Iwamoto, Gabriel Lee +2

The relic abundance of heavy stable particles charged under a confining gauge group can be depleted by a second stage of annihilations near the deconfinement temperature. This proc…

hep-ph2018★ 281 cited

Revised and Improved Value of the QED Tenth-Order Electron Anomalous Magnetic Moment

Tatsumi Aoyama, Toichiro Kinoshita, Makiko Nio

In order to improve the theoretical prediction of the electron anomalous magnetic moment we have carried out a new numerical evaluation of the 389 integrals of Set V, which r…