Conveners
Collider
- Kuver Sinha (University of Oklahoma)
Collider
- Joel Walker (Sam Houston State University)
Collider
- Hyunyong Kim (Texas A & M University (US))
Collider
- Ian Lewis (The University of Kansas)
Collider
- Zhen Liu
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Deepak Kar (University of the Witwatersrand (ZA))5/16/23, 2:05 PM
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Ian Lewis (The University of Kansas)5/16/23, 2:30 PM
Many new physics scenarios predict multi-photon Higgs resonances. One such scenario is the dark axion portal model. The primary decay chain that we study is the Higgs to dark photon ($\gamma_D$) pairs that subsequently decay into a photon ($\gamma$) and an axion-like particle ($a$). The axion-like particles then decay into photon pairs. Hence, the signal is a six-photon Higgs decay:...
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Deion Elgin Fellers (University of Oregon (US))5/16/23, 2:55 PM
This talk will present the first physics results of the FASER experiment, where we were the first to directly observe neutrino interactions at a particle collider experiment and also probed previously unconstrained phase space of the dark photon with couplings $ϵ∼10^{-5}−10^{-4}$ and masses ∼10 MeV - 100 MeV. FASER is an experiment dedicated to searching for light, extremely weakly-interacting...
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Hyunyong Kim (Texas A & M University (US))5/16/23, 3:20 PM
Despite the current standard model of particle physics has been highly successful, there are still unanswered questions surrounding dark matter. This suggests that new physics beyond the standard model may be discovered at the Large Hadron Collider. In my talk, I will focus on the search for the dark sector using a novel concept of beam dump experiments at the CMS experiment. While this...
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Jason Robert Veatch (California State University (US))5/16/23, 4:15 PM
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George Hou (National Taiwan University (TW))5/16/23, 4:40 PM
We study charged Higgs boson search via $e^+e^− \to H^+H^− \to c\bar b \bar cb$
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at the 500 GeV ILC. In a general two Higgs doublet model without $Z_2$ symmetry,
extra Yukawa couplings $\rho_{tt}$ and $\rho_{tc}$ can drive baryogenesis, but
searches at the HL-LHC may still go empty-handed if the couplings are relatively
weak. Taking $m_{H^+} \simeq m_H \simeq m_A \sim 200$ GeV, with... -
Tao Han5/16/23, 5:05 PM
The mechanism of fermion mass generation via the Higgs Yukawa interactions remains to be mysterious because of the large mass hierarchies, many free parameters, and their arbitrary flavor mixing patterns. Scrutinizing the fermionic sector associated with the Higgs properties is of high priority. In this talk, I reiterate the fermion mass and flavor puzzles. I propose some experimental studies...
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Taewook Youn (University of Texas at Austin)5/16/23, 5:30 PM
In this talk, we present a new interacting dark sector model, Stepped Partially Acoustic Dark Matter (SPartAcous), that can tackle two major issues in current cosmological data, namely the $H_0$ and $S_8$ problems. Similar to Partially Acoustic Dark Matter (PAcDM), this model involves a part of dark matter that interacts with dark radiation at high temperatures, resulting in a decrease in the...
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Ashutosh Kotwal (Duke University (US))5/17/23, 11:15 AM
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David Toback (Texas A & M University (US))5/17/23, 11:35 AM
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Lorenzo Ricci5/17/23, 11:50 AM
The precise measurement of the Standard Model parameters is not only a consistency check of the SM itself, but it also represents a powerful probe for New Physics. This is well known in the case of heavy new physics, that might show-up indirectly by modifying the relations among the SM parameters.
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On different lines, we argue that precise SM measurements can also be repurposed to constrain... -
Zhen Liu (University of Minnesota (US))5/17/23, 12:15 PM
The future high-energy muon colliders, featuring both high energy and low background, could play a critical role in our searches for new physics. The smallness of neutrino mass is a puzzle of particle physics. Broad classes of solutions to the neutrino puzzles can be best tested by seeking the partners of SM light neutrinos, dubbed as heavy neutral leptons (HNLs), at muon colliders.
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We can... -
Atanu Pathak (Purdue University Northwest (US))5/17/23, 2:05 PM
Many physics models beyond the Standard Model predict heavy new particles preferentially decaying to at least one top quark. This talk will present searches for Leptoquark/Vector-like quark/new resonances decaying into at least one top quark in pp collision at a center-of-mass energy of 13 TeV at the CMS and ATLAS detectors at the LHC.
The searches use the data set collected with the CMS or...
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Mr Soumyananda Goswami (Oklahoma State University (US))5/17/23, 2:30 PM
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Kaladi Babu5/17/23, 2:55 PM
Observation of lepton number (L) violation by two units at colliders would provide evidence for the Majorana nature of neutrinos. We study signals of L-violation in the context of two popular models of neutrino masses, the type-II seesaw model and the Zee model, wherein small neutrino masses arise at the tree-level and one-loop level, respectively. We focus on L-violation signals at the LHC...
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Dorival Gonçalves (Oklahoma State University)5/17/23, 3:20 PM
The Large Hadron Collider provides a unique environment to study quantum entanglement and violation of Bell's inequalities at the highest energy available today. In this talk, we will discuss the possible observation of these quantum correlations with top quark pair production, which represents a system of two-qubits. Our study focus on the semi-leptonic top pair channel. They indicate that...
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Kaustubh Agashe5/17/23, 4:15 PM
We develop a method for the determination of the top quark mass using the distribution of the decay length of the B-hadrons originating from its decay. This technique is based on our earlier observation regarding the location of the peak of the b quark energy distribution. Such "energy-peak" methods enjoy a greater degree of model-independence with respect to the kinematics of top quark...
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Andrew Larkoski (UCLA)5/17/23, 4:40 PM
The jet charge is an old observable that has proven uniquely useful for discrimination of jets initiated by different flavors of light quarks, for example. In this talk, I propose an approach to understanding the jet charge by establishing simple, robust assumptions that hold to good approximation non-perturbatively, such as isospin conservation and large particle multiplicity in the jets,...
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Prof. Joel Walker (Sam Houston State University)5/17/23, 5:05 PM
We describe a new jet clustering algorithm named SIFT (Scale-Invariant Filtered Tree) that maintains the resolution of substructure for collimated decay products at large boosts. The scale-invariant measure combines properties of kT and anti-kT by preferring early association of soft radiation with a resilient hard axis, while avoiding the specification of a fixed cone size. Integrated...
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Minho SON5/17/23, 5:30 PM
We will discuss about the electroweak dilepton production with two forward jets at the LHC, aiming to measure the anomalous triple gauge couplings in the Effective Field Theory (EFT) approach. This process provides a new example where the interference between Standard Model (SM) and beyond the SM is resurrected in the inclusive cross section of the full amplitude, including two forward jets....
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