Paper |
Title |
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WEPOST023 |
Design of a Very Low Energy Beamline for NA61/SHINE |
1741 |
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- C.A. Mussolini, N. Charitonidis
CERN, Meyrin, Switzerland
- P. Burrows, C.A. Mussolini
JAI, Oxford, United Kingdom
- P. Burrows, C.A. Mussolini
Oxford University, Physics Department, Oxford, Oxon, United Kingdom
- Y. Nagai
Colorado University at Boulder, Boulder, Colorado, USA
- E.D. Zimmerman
CIPS, Boulder, Colorado, USA
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A new, low-energy branch is being designed for the H2 beamline at the CERN North Experimental Area. This new low-energy branch would extend the capabilities of the current infrastructure enabling the study of particles in the low, 1 - 13 GeV/c, momentum range. The first experiment to profit from this new line will be NA61/SHINE (SPS Heavy Ion and Neutrino Experiment), a multi-purpose experiment studying hadron production in hadron-proton, hadron-nucleus and nucleus-nucleus collisions at the SPS. However, other future fixed target experiments or test-beam experiments installed in the downstream zones could also benefit from the low-energy particles provided. The proposed layout and expected performance of this line, along with estimates of particle rates, and considerations on the technical implementation of the beamline are presented in this contribution. A description on the instrumentation, which will enable particle-by-particle tagging, crucial for the experiments scope, is also discussed.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEPOST023
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About • |
Received ※ 08 June 2022 — Revised ※ 13 June 2022 — Accepted ※ 29 June 2022 — Issue date ※ 05 July 2022 |
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WEPOST024 |
Physics Beyond Colliders: The Conventional Beams Working Group |
1745 |
SUSPMF034 |
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- C.A. Mussolini, D. Banerjee, A. Baratto Roldan, J. Bernhard, M. Brugger, N. Charitonidis, G.L. D’Alessandro, L. Gatignon, A. Gerbershagen, F. Metzger, R.P. Murphy, E.G. Parozzi, S.M. Schuh-Erhard, F.W. Stummer, M.W.U. Van Dijk
CERN, Meyrin, Switzerland
- F. Metzger
HISKP, Bonn, Germany
- R.P. Murphy, F.W. Stummer
Royal Holloway, University of London, Surrey, United Kingdom
- C.A. Mussolini, F.W. Stummer
JAI, Oxford, United Kingdom
- C.A. Mussolini
Oxford University, Physics Department, Oxford, Oxon, United Kingdom
- E.G. Parozzi
Universita Milano Bicocca, MILANO, Italy
- E.G. Parozzi
INFN MIB, MILANO, Italy
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The Physics Beyond Colliders initiative aims to exploit the full scientific potential of the CERN accelerator complex and its scientific infrastructure for particle physics studies, complementary to current and future collider experiments. Several experiments have been proposed to fully utilize and further advance the beam options for the existing fixed target experiments present in the North and East Experimental Areas of the CERN SPS and PS accelerators. We report on progress with the RF-separated beam option for the AMBER experiment, following a recent workshop on this topic. In addition we cover the status of studies for ion beams for the NA60+ experiment, as well as of those for high intensity beams for Kaon physics and feebly interacting particle searches. With first beams available in 2021 after a CERN-wide long shutdown, several muon beam options were already tested for the NA64mu, MUonE and AMBER experiments.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEPOST024
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About • |
Received ※ 08 June 2022 — Revised ※ 14 June 2022 — Accepted ※ 23 June 2022 — Issue date ※ 10 July 2022 |
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WEPOST040 |
Comparing Methods of Recovering Gamma Energy Distributions from PEDRO Spectrometer Responses |
1784 |
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- M.H. Oruganti, B. Naranjo, J.B. Rosenzweig, M. Yadav
UCLA, Los Angeles, California, USA
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To calculate the energy levels of the photons emitted from high-energy particle interactions, the new pair spectrometer (PEDRO) channels the photons through several Beryllium nuclear fields to produce electron-positron pairs through the nuclear field interaction. This project compared several methods of reconstruction and determined which best predicts original energy distributions based on simulated spectra. These methods included using Maximum Likelihood Estimation, Machine Learning, and directly analyzing a response matrix that modeled PEDRO’s response to any photon energy distribution. We report that performing the direct analysis, also known as QR decomposition, on a PEDRO-generated spectrum provides by far the most accurate calculation of the spectrum’s original energy distribution. These methods were tested against results from experimental cases, including Nonlinear Compton Scattering and Filamentation.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEPOST040
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About • |
Received ※ 15 June 2022 — Revised ※ 01 July 2022 — Accepted ※ 08 July 2022 — Issue date ※ 08 July 2022 |
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