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Experiment E02-013, approved by PAC21, will measure the neutron electric form factor at \qsq~up to 3.4 \gvsq, which is twice that achieved to date. The main features of the new experiment will be the use of the electron spectrometer…

Instrumentation and Detectors · Physics 2017-08-23 B. Wojtsekhowski

The deeply virtual Compton scattering reaction has been investigated in the Hall A of the Jefferson Laboratory by measuring longitudinally polarized (e,e'gamma) cross sections, in the valence quark region, for protons and neutrons. In the…

Nuclear Experiment · Physics 2007-09-28 Eric Voutier

A combination of the inclusive diffractive cross section measurements made by the H1 and ZEUS Collaborations at HERA is presented. The analysis uses samples of diffractive deep inelastic ep scattering data at a centre-of-mass energy sqrt(s)…

High Energy Physics - Experiment · Physics 2015-06-05 H1 Collaboration , ZEUS Collaboration

Due to the inconsistency in the results of the GEp/Gmp ratio of the proton, as extracted from the Rosenbluth and recoil polarization techniques, high precision measurements of the e-p elastic scattering cross sections were made at Q^2 =…

Nuclear Experiment · Physics 2009-09-29 Issam A. Qattan

The Standard Model violates parity, but only by mechanisms which are invisible to Large Hadron Collider (LHC) experiments (on account of the lack of initial state polarisation or spin-sensitivity in the detectors). Nonetheless, new physical…

High Energy Physics - Experiment · Physics 2019-12-18 Christopher G. Lester , Matthias Schott

This talk explores our lack of knowledge of the strange quark contribution to the nucleon spin, $\Delta s$. Data on $\Delta s$ from inclusive and semi-inclusive polarized deep-inelastic scattering will be reviewed, followed by a discussion…

Nuclear Experiment · Physics 2009-11-11 Stephen F. Pate

Forward jet cross sections have been measured in neutral current deep inelastic scattering at low Bjorken-x with the ZEUS detector at HERA using an integrated luminosity of ${81.8 \rm pb}^{-1}$. Measurements are presented for inclusive…

High Energy Physics - Experiment · Physics 2019-08-13 S. Chekanov

Higher-order QED effects play an important role in precision measurements of nucleon elastic form factors in electron scattering. Here we introduce a two-photon exchange QED correction to the parity-violating polarization asymmetry of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andrei V. Afanasev , Carl E. Carlson

The complete world set of parity violating electron scattering data up to Q^2~0.3 GeV^2 is analysed. We extract the current experimental determination of the strange electric and magnetic form factors of the proton, as well as the weak…

Nuclear Experiment · Physics 2010-02-17 R. D. Young , J. Roche , R. D. Carlini , A. W. Thomas

We examine the interference \gamma Z box corrections to parity-violating elastic electron--proton scattering in the light of the recent observation of quark-hadron duality in parity-violating deep-inelastic scattering from the deuteron, and…

Nuclear Theory · Physics 2017-03-08 N. L. Hall , P. G. Blunden , W. Melnitchouk , A. W. Thomas , R. D. Young

Hard-scattered partons ejected from high-energy proton-proton collisions undergo parton shower and hadronization, resulting in collimated collections of particles that are clustered into jets. A substructure observable that highlights the…

High Energy Physics - Experiment · Physics 2025-02-25 The STAR Collaboration

The experimental realization of successive non-demolition measurements on single microscopic systems brings up the question of ergodicity in Quantum Mechanics (QM). We investigate whether time averages over one realization of a single…

Quantum Physics · Physics 2015-04-06 Mariano Bauer , Pier A. Mello

We present a summary of the measurements of the top quark production and decay properties performed by the D0 experiment at the Fermilab Tevatron proton-antiproton collider at sqrt{s}=1.96 TeV using 1 fb-1 of data. We discuss the first…

High Energy Physics - Experiment · Physics 2019-08-14 E. Shabalina

By exploiting the fermionic qubit parity measurement, we present a scheme to realize quantum non-demolition (QND) measurement of Bell-states and generate n-party GHZ state in quantum dot. Compared with the original protocol, the required…

Quantum Physics · Physics 2009-11-11 Guo-Ping Guo , Hui Zhang , Guang-Can Guo

The recently published final results of experiment E04-108 in Jefferson Lab Hall C extend the recoil polarization measurements of the ratio of the proton electric and magnetic form factors to $Q^2 = 8.5$ GeV$^2$, an increase in $Q^2$…

Nuclear Experiment · Physics 2019-08-21 A. J. R. Puckett

We study the interplay of general relativity, the equivalence principle, and high-precision experiments involving atomic transitions and g factor measurements. In particular, we derive a generalized Dirac Hamiltonian, which describes both…

High Energy Physics - Phenomenology · Physics 2019-04-26 Ulrich D. Jentschura

In this paper, we report the measurement of the energy flow, the cross section and the average inelasticity of forward neutrons (+ antineutrons) produced in $\sqrt{s} = 13$ TeV proton-proton collisions. These quantities are obtained from…

The impact of atomic parity violation experiments on determination of the weak mixing parameter $\sin^2 \theta$ and the Peskin-Takeuchi parameters $S$ and $T$ is reassessed in the light of recent electroweak measurements at LEP, SLAC, and…

High Energy Physics - Phenomenology · Physics 2016-08-24 Jonathan L. Rosner

Differential cross-section measurements are presented for the electroweak production of two jets in association with a $Z$ boson. These measurements are sensitive to the vector-boson fusion production mechanism and provide a fundamental…

High Energy Physics - Experiment · Physics 2021-04-08 ATLAS Collaboration

The JUNO observatory is a medium baseline experiment in construction in China. A large liquid scintillator volume detects the antineutrinos issued from nuclear reactors. The liquid scintillator detector is instrumented with 17000 large…

Instrumentation and Detectors · Physics 2018-06-27 Yifan Yang , Barbara Clerbaux