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The accelerator for the APT Project is a 100 mA CW proton linac with an output energy of 1030 MeV. A High Energy Beam Transport (HEBT) conveys the beam to a raster expander, that provides a large rectangular distribution at a target/blanket…

Accelerator Physics · Physics 2008-11-26 J. F. Tooker , R. Bourque , D. Christiansen , J. Kamperschroer , G. Laughon , M. McCarthy , M. Schulze

Space charge is typically one of the performance limitations for the operation of high intensity and high brightness beams in circular accelerators. In the Proton Synchrotron (PS) at CERN, losses are observed for vertical tunes above…

The present paper reports on the RXTE observations of the binary X-ray pulsar 4U0115+63, covering an outburst in 1999 March-April with 44 pointings. The 3-30 keV PCA spectra and the 15-50 keV HEXTE spectra were analyzed jointly for the…

Astrophysics · Physics 2008-11-26 Motoki Nakajima , Tatehiro Mihara , Kazuo Makishima , Hisako Niko

We analyze the observations of the transient X-ray pulsar 4U 0115+63 with the RXTE and INTEGRAL observatories in a wide X-ray (3-100 keV) energy band during its intense outbursts in 1999 and 2004. The energy of the fundamental harmonic of…

Astrophysics · Physics 2009-06-23 S. S. Tsygankov , A. A. Lutovinov , E. M. Churazov , R. A. Sunyaev

We propose a novel analysis strategy, that leverages the unique capabilities of the DUNE experiment, to study tau neutrinos. We integrate collider physics ideas, such as jet clustering algorithms in combination with machine learning…

High Energy Physics - Phenomenology · Physics 2020-09-30 Pedro Machado , Holger Schulz , Jessica Turner

The development of a directional, small-divergence, and short-duration picosecond x-ray probe beam with an energy greater than 50 keV is desirable for high energy density science experiments. We therefore explore through particle-in-cell…

Plasma Physics · Physics 2016-03-23 N. Lemos , J. L. Martins , F. S. Tsung , J. L. Shaw , K. A. Marsh , F. Albert , B. B. Pollock , C. Joshi

High-power electron beams are sought-after tools in support to a wide array of societal applications. This paper investigates the production of high-power electron beams by combining a high-current field-emission electron source to a…

Accelerator Physics · Physics 2018-12-26 O. Mohsen , I. Gonin , R. Kephart , T. Khabiboulline , P. Piot , N. Solyak , J. C. Thangaraj , V. Yakovlev

DUNE is a next-generation long-baseline neutrino oscillation experiment seeking to probe fundamental symmetries within the structure of the PMNS mixing matrix, and perform precision measurements its parameters including the neutrino mass…

High Energy Physics - Experiment · Physics 2025-04-15 Anthony Wood

Even though neutrino oscillations have been conclusively established, there are a few unanswered questions pertaining to leptonic Charge Parity violation (CPV), mass hierarchy (MH) and $\theta_{23}$ octant degeneracy. Addressing these…

High Energy Physics - Phenomenology · Physics 2021-01-04 Jogesh Rout , Samiran Roy , Mehedi Masud , Mary Bishai , Poonam Mehta

Monte Carlo simulations of slow positron production via energetic electron interaction with a solid target have been performed. The aim of the simulations was to determine the expected slow positron beam intensity from a low energy, high…

Accelerator Physics · Physics 2015-05-27 B. E. O'Rourke , N. Hayashizaki , A. Kinomura , R. Kuroda , E. Minehara , T. Ohdaira , N. Oshima , R. Suzuki

Neutral-current and charged-current deep-inelastic scattering at very high four-momentum transfer squared (Q^2) have been studied in positron-proton collisions at center-of-mass energy 300 GeV using the ZEUS detector at HERA. An integrated…

High Energy Physics - Experiment · Physics 2019-08-14 C. M. Ginsburg

The completion of the PIP-II project and its superconducting linear accelerator will provide up to 1.2 MW of beam power to the LBNF/DUNE facility for neutrino physics. It will also be able to produce high-power beams directly from the linac…

We propose to use a frequency doubled pulse colliding with the driving pulse at an acute angle to trigger ionization injection in a laser wakefield accelerator. This scheme effectively reduces the duration that injection occurs, thus high…

Accelerator Physics · Physics 2022-02-25 Jia Wang , Ming Zeng , Xiaoning Wang , Dazhang Li , Jie Gao

The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment aimed at determining the neutrino mass hierarchy and the CP-violating phase. The DUNE physics program also includes the…

High Energy Physics - Experiment · Physics 2024-12-20 I. Gil-Botella

This Preliminary Design Report (PDR) describes the IsoDAR electron-antineutrino source in two volumes which are mostly site-independent and describe the cyclotron driver providing a 60 MeV, 10 mA proton beam (this Volume); and the medium…

In this paper we present alternative approach for Future Circular electron-positron Collider. Current 100 km circumference design with the top CM energy of 365 GeV (182.5 GeV beam energy) is based on two storage rings to circulate colliding…

Accelerator Physics · Physics 2020-03-25 Vladimir N Litvinenko , Thomas Roser , Maria Chamizo Llatas

The high-luminosity requirement in future lepton colliders imposes a need for a high-intensity positron source. In the conventional scheme, positron beams are obtained by the conversion of bremsstrahlung photons into electron-positron pairs…

We present an upgrade to the particle-in-cell ion beam simulation code OPAL that enables us to run highly realistic simulations of the spiral inflector system of a compact cyclotron. This upgrade includes a new geometry class and field…

Accelerator Physics · Physics 2017-12-20 Daniel Winklehner , Andreas Adelmann , Achim Gsell , Tulin Kaman , Daniela Campo

The production of D+- and D0 mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb-1. The measurements cover the kinematic range 5 < Q^2 < 1000 GeV^2, 0.02 < y < 0.7, 1.5 < p_T^D < 15 GeV and…

High Energy Physics - Experiment · Physics 2010-01-11 ZEUS Collaboration , S. Chekanov

The ATLAS detector has been used to search for high mass ee or mumu resonances, such as new heavy neutral gauge bosons. Over 1 fb^{-1} of proton-proton collisions at s = 7 TeV recorded by the ATLAS experiment are used to search for a high…

High Energy Physics - Experiment · Physics 2019-08-13 D. Olivito