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๐Ÿ” ryan babbush ๐Ÿ“‚ Physics
Showing 2761 results for "ryan babbush" in Physics
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Measurement of the top quark pair production cross section in PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.36 TeV

CMS Collaboration ยท 2026

The inclusive cross section for top quark pair ($\mathrm{t\bar{t}}$) production in lead-lead (PbPb) collisions is reported for the first time at a center-of-mass energy per nucleon pair of 5.36 TeV. Tโ€ฆ

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Physics Preprint PDF DOI

Measurement of the Z $\to$ $\mu^+\mu^-$ angular coefficients in pp collisions at $\sqrt{s}$ = 13 TeV as functions of transverse momentum and rapidity

CMS Collaboration ยท 2026

A measurement of the eight angular polarization coefficients, $A_0$ to $A_7$, in the cross section for the Drell$-$Yan production of two muons is presented. The analysis is based on proton-proton (pp)โ€ฆ

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Physics Preprint PDF DOI

Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark

ATLAS Collaboration ยท 2026

Wilson coefficients in dimension-six effective field theory are constrained in a combined fit to several ATLAS measurements. These inputs probe Higgs-boson processes across multiple production and decโ€ฆ

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Physics Preprint PDF DOI

Probing the Tau Anomalous Magnetic Moment at Colliders: From Ultra-Peripheral Collisions to the Precision Frontier

Natascia Vignaroli ยท 2026

The anomalous magnetic moment of the tau lepton, $a_{\tau}$, represents a fundamental test of the Standard Model (SM) and a high-sensitivity probe for New Physics in the third generation of leptons. Dโ€ฆ

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Physics Preprint PDF DOI

AI-assisted modeling and Bayesian inference of unpolarized quark transverse momentum distributions from Drell-Yan data

Zhong-Bo Kang, Luke Sellers, Congyue Zhang, Curtis Zhou ยท 2026

We present an extraction of unpolarized quark transverse-momentum-dependent parton distribution functions (TMD PDFs) from Drell-Yan data within a Bayesian inference framework, incorporating artificialโ€ฆ

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Physics Preprint PDF DOI

SemiCharmTag: a tool for Semileptonic Charm tagging

Carolina Arata, Imanol Corredoira, Alisha Lightbody, Michael Winn ยท 2026

A method for selecting and/or rejecting leptons from charm semileptonic decays based on the tagging of the secondary vertex using a hadron track is introduced. The method is developed for dimuon Drellโ€ฆ

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Investigating ACS/WFC Amp-to-Amp Sensitivities

Gagandeep S. Anand, Norman A. Grogin ยท 2026

Recently, the ACS team applied an Ubercal framework to assess the photometric repeatability of stars observed across the WFC detector using 15 years of post-SM4 calibration data in the globular clusteโ€ฆ

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Pion Parton Distribution Functions in the Light-Cone Quark Model and Experimental Constraints

Hari Govind P, Satyajit Puhan, Abhishek K.P, Reetanshu Pandey, Harleen Dahiya, Arvind Kumar, Suneel Dutt ยท 2026

In this work, we investigate the valence quark parton distribution functions (PDFs) of the pion within the light-cone quark model. The initial quark PDFs are calculated by solving the quark-quark corrโ€ฆ

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Probing Gluon TMD Models with Drell--Yan Structure Functions

Jan Ferdyan ยท 2026

We compute structure functions for the Drell--Yan process in proton-proton collisions at the center of mass energy $\sqrt{S} = 8 \mathrm{TeV}$ both parity conserving and parity breaking. For this calcโ€ฆ

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Searching for New Physics Inside Jets with the Herwig 7 Generalised Parton Shower

Taehee Kim, Joon-Bin Lee, M.R. Masouminia, Michael H. Seymour, Un-ki Yang ยท 2026

This study investigates parton shower evolution incorporating both Standard Model (SM) and beyond-the-Standard-Model (BSM) radiation, focusing on the phenomenology of a massive $Z'$ boson. While tradiโ€ฆ

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On the collimation properties of jets with finite Poynting flux launched from Keplerian accretion discs

Thomas Jannaud, Jonathan Ferreira, Claudio Zanni ยท 2026

It is generally accepted that the launching of astrophysical jets requires a large-scale magnetic field threading a central object (black hole or star) and/or its surrounding accretion disc. However, โ€ฆ

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ROLLIN': Rotating globular cluster simulations. I. The kinematic evolution of realistic direct N-body models

P. Bianchini, A. L. Varri, A. Askar, A. Marklund, A. Mastrobuono-Battisti ยท 2026

Internal rotation has emerged as a fundamental feature of globular clusters (GCs), yet its origin and long-term evolution remain poorly understood. We explore the evolution of rotating GCs over a Hubbโ€ฆ

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Interpreting the results on exclusive $c\rightarrow s\mu\nu$ modes

D. Becirevic, M. Martines, S. Rosauro-Alcaraz, O. Sumensari ยท 2026

We examine the $q^2$-binned distributions of the $D\to K\mu\nu$ decay rate and of the corresponding forward-backward asymmetry which were recently measured by BESIII, showing a mild deviation from theโ€ฆ

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Magnetic-monopole resummation justifies perturbatively calculated collider production cross sections

Jean Alexandre, Nick E. Mavromatos, Vasiliki A. Mitsou, Emanuela Musumeci ยท 2026

A one-loop resummation scheme, inspired by Dyson-Schwinger (DS) formalism of strongly coupled quantum field theories, is applied to spin-1/2 magnetic monopoles (MMs), in the context of an effective fiโ€ฆ

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Pion and Kaon Fragmentation Functions from Continuum Schwinger Function Methods

Hui-Yu Xing ยท 2026

Using the Drell-Levy-Yan relation, the pion and kaon elementary fragmentation functions (EFFs) are obtained from their hadron-scale parton distribution functions (DFs). These EFFs serve as driving terโ€ฆ

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Spacelike and timelike structure functions: a dispersive crossing relation

Aniruddha Venkata ยท 2026

Crossing symmetry suggests that deep inelastic scattering and semi inclusive electron-positron annihilation are governed by analytic continuations of a single forward amplitude. Drell, Levy, and Yan pโ€ฆ

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The impact of prescriptions in phenomenological extractions of Transverse Momentum Dependent distributions

Matteo Cerutti, Andrea Simonelli ยท 2026

We investigate the impact of phenomenological prescriptions in the Collins-Soper-Sterman (CSS) approach for global extractions of Transverse Momentum Distributions (TMDs). We show that fits to low-eneโ€ฆ

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history: A tool for fully-differential cross sections at next-to-next-to-leading order

Sven Yannick Klein, Lukas Simon ยท 2026

The software $\texttt{history}$ is designed to calculate fully-differential cross sections for colour-singlet production processes in hadronic collision up to next-to-next-to-leading order in QCD. It โ€ฆ

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Recent electroweak measurements from the CMS experiment

Cristina-Andreea Alexe (for the CMS Collaboration) ยท 2026

Recent measurements of electroweak phenomena from the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider are summarized. The standard model of particle physics was tested through highโ€ฆ

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First results from LEGEND-200: searching for $0\nu\beta\beta$ decay in $^{76}$Ge

Giovanna Saleh (on behalf of the LEGEND Collaboration) ยท 2026

The LEGEND Experiment searches for the neutrinoless double beta (0$\nu\beta\beta$) decay of $^{76}$Ge employing active high purity germanium detectors enriched in $^{76}$Ge beyond 86%. LEGEND's experiโ€ฆ

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