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We look at a number of simple, but representative, models of extended electroweak gauge structures, and present the general contributions to a_muon from the heavy Z' and W' electroweak gauge bosons. Of the models we have examined, none can…

High Energy Physics - Phenomenology · Physics 2009-11-07 Kevin R. Lynch

We study the leading electroweak corrections in the precision measurement of the strange form factors. Specifically, we calculate the two-boson-exchange (TBE), two-photon-exchange (TPE) plus $\gamma Z$-exchange ($\gamma Z$E), corrections…

Nuclear Theory · Physics 2010-11-22 Keitaro Nagata , Hai Qing Zhou , Chung Wen Kao , Shin Nan Yang

A mathematical framework is constructed for the sum of the lowest N eigenvalues of a potential. Exactness is illustrated on several model systems (harmonic oscillator, particle in a box, and Poschl-Teller well). Its order-by-order…

Materials Science · Physics 2020-06-04 Kieron Burke

We investigate the different decompositions of the angular momentum in QCD for a relativistic spin $1/2$ composite state, namely a quark dressed with a gluon. We use light-front Hamiltonian perturbation theory, and in the light-front gauge,…

High Energy Physics - Phenomenology · Physics 2023-12-15 Ravi Singh , Sudeep Saha , Asmita Mukherjee , Nilmani Mathur

We show that eikonal corrections imposed on diffraction dissociation processes calculated in the triple Regge limit, produce a radical change in the energy dependence of the predicted cross section. The induced correction is shown to be in…

High Energy Physics - Phenomenology · Physics 2009-12-30 E. Gotsman , E. M. Levin , U. Maor

In this talk we discuss the next-to-leading-order electroweak (EW) corrections to W-boson + jet hadroproduction [1] and compare the full result to a simple approximation assuming factorization of EW and QCD corrections for the…

High Energy Physics - Phenomenology · Physics 2010-01-15 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

An analytical solution of the QCD evolution equations for the singlet and gluon distribution is presented. We decouple DGLAP evolution equations into the initial conditions by using a Laplace transform method at $N^{n}LO$ analysis. The…

High Energy Physics - Phenomenology · Physics 2019-05-13 B. Rezaei , G. R. Boroun

Reduced electron screening in two-dimension plays a fundamental role in determining exciton properties, which dictates optoelectronic and photonic device performances. Considering the explicit electron-hole interaction within the…

Mesoscale and Nanoscale Physics · Physics 2019-01-30 Srilatha Arra , Rohit Babar , Mukul Kabir

We present the new Coherent Exclusive Exponentiation (CEEX), the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX) for the process $e^+e^-\to f\bar{f} +n\gamma$, $f=\mu,\tau,d,u,s,c,b$ with validity…

High Energy Physics - Phenomenology · Physics 2011-05-05 S. Jadach , B. F. L. Ward , Z. Was

We use an abelian model to study linear power corrections which arise from infrared renormalons and affect event shapes in $e^+e^-$ annihilation into hadrons. While previous studies explored power corrections in the two-jet region, in this…

High Energy Physics - Phenomenology · Physics 2022-12-28 Fabrizio Caola , Silvia Ferrario Ravasio , Giovanni Limatola , Kirill Melnikov , Paolo Nason , Melih Arslan Ozcelik

We compute the $e^+ e^-$ C-parameter distribution using the Soft-Collinear Effective Theory with a resummation to N${}^3$LL$^\prime$ accuracy of the most singular partonic terms. This includes the known fixed-order QCD results up to ${\cal…

High Energy Physics - Phenomenology · Physics 2015-05-27 André H. Hoang , Daniel W. Kolodrubetz , Vicent Mateu , Iain W. Stewart

We estimate the power corrections (infrared renormalon contributions) to the coefficient functions for the differential Drell-Yan cross-section $d^2\sigma/dQ^2dy$, where $Q^2$ is the mass squared and $y$ the rapidity of the produced lepton…

High Energy Physics - Phenomenology · Physics 2010-02-03 Mrinal Dasgupta

The energy shaping method, Controlled Lagrangian, is a well-known approach to stabilize the under-actuated Euler Lagrange (EL) systems. In this approach, to construct a control rule, some nonlinear, nonhomogeneous partial differential…

Systems and Control · Electrical Eng. & Systems 2020-07-06 Huseyin Alpaslan Yildiz , Leyla Goren-Sumer

Soft fracture in highly deformable solids involves both geometric and constitutive nonlinearities, necessitating advanced theoretical and computational frameworks for its accurate understanding. Tensile fractures subjected to mixed-mode…

A benchmark experiment on 208Pb shows that polarized proton inelastic scattering at very forward angles including 0{\deg} is a powerful tool for high-resolution studies of electric dipole (E1) and spin magnetic dipole (M1) modes in nuclei…

The electroweak corrections at the order of $O(\alpha_{ew}m_{t(b)}^2/m_W^2)$ to the partial widths of the $\tilde{t}_2 \to \tilde{g} + t$ and $\tilde{g} \to \tilde{t}_1 + \bar{t} $ decays (depending on the masses of the particles involved)…

High Energy Physics - Phenomenology · Physics 2015-06-25 Hou Hong-Sheng , Ma Wen-Gan , Wan Lang-Hui , Zhang Ren-You

A rigorous methodology is developed for computing elastic fields generated by experimentally observed defect structures within grains in a polycrystal that has undergone tensile extension. An example application is made using a near-field…

Materials Science · Physics 2023-10-10 Siddharth Singh , He Liu , Rajat Arora , Robert M. Suter , Amit Acharya

The standard Regge poles are considered as inputs for two unitarization methods: eikonal and U-matrix. It is shown that only models with three input pomerons and two input odderons can describe the high energy data on $pp$ and $\bar pp$…

High Energy Physics - Phenomenology · Physics 2015-06-15 A. Alkin , O. Kovalenko , E. Martynov

We report on the complete computation of the mixed QCD-electroweak corrections to the neutral-current Drell-Yan process. Our calculation holds in the entire range of dilepton invariant masses. We present phenomenological results for several…

We present a recent calculation of the quark and gluon contributions to the angular momentum of a composite spin -$1/2$ state in QCD. The state we consider is a quark dressed with a gluon, and we use the two-component framework in…

High Energy Physics - Phenomenology · Physics 2024-07-22 Ravi Singh , Sudeep Saha , Asmita Mukherjee , Nilmani Mathur