Publications (34)
The Stueckelberg Z Prime at the LHC: Discovery Potential, Signature Spaces and Model Discrimination
Daniel Feldman, Zuowei Liu, Pran Nath
An analysis is given of the capability of the LHC to detect narrow resonances using high luminosities and techniques for discriminating among models are discussed. The analysis is…
Light Higgses at the Tevatron and at the LHC and Observable Dark Matter in SUGRA and D Branes
Daniel Feldman, Zuowei Liu, Pran Nath
Sparticle landscapes in mSUGRA, in SUGRA models with nonuniversalities (NUSUGRA), and in D brane models are analyzed. The analysis exhibits the existence of Higgs Mass Patterns (HP…
Data-Independent Structured Pruning of Neural Networks via Coresets
Ben Mussay, Daniel Feldman, Samson Zhou +2
Model compression is crucial for deployment of neural networks on devices with limited computational and memory resources. Many different methods show comparable accuracy of the co…
Connecting the Direct Detection of Dark Matter with Observation of Sparticles at the LHC
Daniel Feldman, Zuowei Liu, Pran Nath
An analysis is given connecting event rates for the direct detection of neutralino dark matter with the possible signatures of supersymmetry at the LHC. It is shown that if an effe…
Explaining PAMELA and WMAP data through Coannihilations in Extended SUGRA with Collider Implications
Daniel Feldman, Zuowei Liu, Pran Nath +1
The PAMELA positron excess is analyzed within the framework of nonuniversal SUGRA models with an extended gauge symmetry in the hidden sector leading to neutralino dark ma…
Interpreting the First CMS and ATLAS SUSY Results
Sujeet Akula, Ning Chen, Daniel Feldman +4
The CMS and the ATLAS Collaborations have recently reported on the search for supersymmetry with 35 pb of data and have put independent limits on the parameter space of the…
Sparticles at the LHC
Daniel Feldman, Zuowei Liu, Pran Nath
Sparticle mass hierarchies will play an important role in the type of signatures that will be visible at the Large Hadron Collider. We analyze these hierarchies for the four lighte…
Superparticle Signatures: from PAMELA to the LHC
Daniel Feldman
Signatures of soft supersymmetry breaking at the CERN LHC and in dark matter experiments are discussed with focus drawn to light superparticles, and in particular light gauginos an…
Recent Developments in Supersymmetric and Hidden Sector Dark Matter
Daniel Feldman, Zuowei Liu, Pran Nath
New results which correlate SUSY dark matter with LHC signals are presented, and a brief review of recent developments in supersymmetric and hidden sector dark matter is given. It…
R-parity Conservation via the Stueckelberg Mechanism: LHC and Dark Matter Signals
Daniel Feldman, Pavel Fileviez Perez, Pran Nath
We investigate the connection between the conservation of R-parity in supersymmetry and the Stueckelberg mechanism for the mass generation of the B-L vector gauge boson. It is show…
The Stueckelberg Extension with Kinetic Mixing and Milli-Charged Dark Matter From the Hidden Sector
Daniel Feldman, Zuowei Liu, Pran Nath
An analysis is given of the Stueckelberg extension of the Standard Model with a hidden sector gauge group where the mass growth for the extra gauge boson occurs via the St…
The Stueckelberg Extension and Milli Weak and Milli Charge Dark Matter
Daniel Feldman, Zuowei Liu, Pran Nath
A overview is given of the recent developments in the Stueckelberg extensions of the Standard Model and of MSSM where all the Standard Model particles are neutral under th…
A new (string motivated) approach to the little hierarchy problem
Daniel Feldman, Gordon Kane, Eric Kuflik +1
We point out that in theories where the gravitino mass, , is in the range (10-50)TeV, with soft-breaking scalar masses and trilinear couplings of the same order, there exi…
Multicomponent Dark Matter in Supersymmetric Hidden Sector Extensions
Daniel Feldman, Zuowei Liu, Pran Nath +1
Most analyses of dark matter within supersymmetry assume the entire cold dark matter arising only from weakly interacting neutralinos. We study a new class of models consisting of…
Higgs Boson Mass Predictions in SUGRA Unification, Recent LHC-7 Results, and Dark Matter
Sujeet Akula, Baris Altunkaynak, Daniel Feldman +2
LHC-7 has narrowed down the mass range of the light Higgs boson. This result is consistent with the supergravity unification framework, and the current Higgs boson mass window impl…
Excess Observed in CDF and SUSY at the LHC
Sujeet Akula, Daniel Feldman, Pran Nath +1
The recent excess observed by CDF in is interpreted in terms of a possible supersymmetric origin. An analysis is given of the parameter space of mSUGRA an…
Predictive Signatures of Supersymmetry: Measuring the Dark Matter Mass and Gluino Mass with Early LHC data
Daniel Feldman, Katherine Freese, Pran Nath +2
We present a focused study of a predictive unified model whose measurable consequences are immediately relevant to early discovery prospects of supersymmetry at the LHC. ATLAS and…
Well-Mixed Dark Matter and the Higgs
Daniel Feldman, Pearl Sandick
The breaking of electroweak symmetry through renormalization group flow in models that have MSSM spectra is found to produce "well-mixed" neutralino dark matter with a relic densit…
A transitional disk around an intermediate mass star in the sparse population of the Orion OB1 Association
Alice Pérez-Blanco, Karina Maucó, Jesús Hernández +8
We present a detailed study of the disk around the intermediate mass star SO 411, aiming to explain the spectral energy distribution of this star. We show that this is a transition…
A Survey on Exploratory Spatiotemporal Visual Analytics Approaches for Climate Science
Abdullah-Al-Raihan Nayeem, Dongyun Han, Huikyo Lee +5
Climate science produces a wealth of complex, high-dimensional, multivariate data from observations and numerical models. These data are critical for understanding climate changes…
SUSY and Higgs Signatures Implied by Cancellations in
Ning Chen, Daniel Feldman, Zuowei Liu +1
Recent re-evaluations of the Standard Model (SM) contribution to ${\mathcal Br(b\to sγ)$ hint at a positive correction from new physics. Since a charged Higgs boson exchange alway…
Low Mass Neutralino Dark Matter in the MSSM with Constraints from and Higgs Search Limits
Daniel Feldman, Zuowei Liu, Pran Nath
The region of low neutralino masses as low as (5-10) GeV has attracted attention recently due to the possibility of excess events above background in dark matter detectors. An anal…
The Landscape of Sparticle Mass Hierarchies and Their Signature Space at the LHC
Daniel Feldman, Zuowei Liu, Pran Nath
The minimal supersymmetric standard model with soft breaking has a large landscape of supersymmetric particle mass hierarchies. This number is reduced significantly in well-motivat…
Decoding the Mechanism for the Origin of Dark Matter in the Early Universe Using LHC Data
Daniel Feldman, Zuowei Liu, Pran Nath
It is shown that LHC data can allow one to decode the mechanism by which dark matter is generated in the early universe in supersymmetric theories. We focus on two of the major mec…
Higgsino dark matter model consistent with galactic cosmic ray data and possibility of discovery at LHC-7
Ning Chen, Daniel Feldman, Zuowei Liu +2
A solution to the PAMELA positron excess with Higgsino dark matter within extended supergravity grand unified (SUGRA) models is proposed. The models are compliant with the photon c…
Gluino NLSP, Dark Matter via Gluino Coannihilation, and LHC Signatures
Daniel Feldman, Zuowei Liu, Pran Nath
The possibility that the gluino is the next to the lightest supersymmetric particle (NLSP) is discussed and it is shown that this situation arises in nonuniversal SUGRA models with…
Low Mass Gluino within the Sparticle Landscape, Implications for Dark Matter, and Early Discovery Prospects at LHC-7
Ning Chen, Daniel Feldman, Zuowei Liu +2
We analyze supergravity models that predict a low mass gluino within the landscape of sparticle mass hierarchies. The analysis includes a broad class of models that arise in minima…
Extra-weakly Interacting Dark Matter
Daniel Feldman, Boris Kors, Pran Nath
We investigate a new type of dark matter with couplings to ordinary matter naturally suppressed by at least one order of magnitude compared to weak interactions. Despite the extra-…
New Constraints on Dark Matter from CMS and ATLAS Data
Sujeet Akula, Daniel Feldman, Zuowei Liu +2
Constraints on dark matter from the first CMS and ATLAS SUSY searches are investigated. It is shown that within the minimal supergravity model, the early search for supersymmetry a…
Probing a Very Narrow Boson with CDF and D0 Data
Daniel Feldman, Zuowei Liu, Pran Nath
The CDF and D0 data of nearly 475 in the dilepton channel is used to probe a recent class of models, Stueckelberg extensions of the Standard Model (StSM), which pr…
Omissive Bias in Religious Representation: Benchmarking LLM Answers to Everyday Ethical Decision-making
David Wingate, Sheryl Carty, Joshua Coates +13
As large language models become a default source of guidance on personal, moral, and existential questions, it matters whether they draw on the religious frameworks that have histo…
Dark Matter as a Guide Toward a Light Gluino at the LHC
Daniel Feldman, Gordon Kane, Ran Lu +1
Motivated by specific connections to dark matter signatures, we study the prospects of observing the presence of a relatively light gluino whose mass is in the range ~(500-900) GeV…
PAMELA Positron Excess as a Signal from the Hidden Sector
Daniel Feldman, Zuowei Liu, Pran Nath
The recent positron excess observed in the PAMELA satellite experiment strengthens previous experimental findings. We give here an analysis of this excess in the framework of the S…
Snowpack Estimation in Key Mountainous Water Basins from Openly-Available, Multimodal Data Sources
Malachy Moran, Kayla Woputz, Derrick Hee +7
Accurately estimating the snowpack in key mountainous basins is critical for water resource managers to make decisions that impact local and global economies, wildlife, and public…