1. Expression of interest for the CODEX-b detector
- Author
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Paul Nathaniel Swallow, George Gibbons, Raphael Dumps, Saul López Soliño, Jongho Lee, Riccardo Vari, Roberto Cardarelli, Simon Knapen, H. Schindler, Michele Papucci, Dean J. Robinson, Mike Williams, Biplab Dey, Giulio Aielli, E. Ben-Haim, Olivier Le Dortz, Vladimir Gligorov, Jared A. Evans, Nigel Watson, Philip Ilten, Matthew Charles, Benjamin Nachman, Francesco Polci, Xabier Cid Vidal, Harikrishnan Ramani, Robin Quessard, Michael Sokoloff, Victor Coco, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), and Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics and Astronomy (miscellaneous) ,Physics::Instrumentation and Detectors ,Tracking (particle physics) ,01 natural sciences ,Atomic ,High Energy Physics - Experiment ,shielding: design ,High Energy Physics - Experiment (hep-ex) ,High Energy Physics - Phenomenology (hep-ph) ,Particle and Plasma Physics ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Physics ,Quantum Physics ,Large Hadron Collider ,Detector ,hep-ph ,Nuclear & Particles Physics ,High Energy Physics - Phenomenology ,CERN LHC Coll ,Electromagnetic shielding ,axion-like particles ,proposed experiment ,numerical calculations: Monte Carlo ,Particle Physics - Experiment ,p p: scattering ,FOS: Physical sciences ,lcsh:Astrophysics ,lcsh:QB460-466 ,0103 physical sciences ,Electronic engineering ,Calibration ,calorimeter ,lcsh:Nuclear and particle physics. Atomic energy. Radioactivity ,Nuclear ,010306 general physics ,Engineering (miscellaneous) ,detector: design ,Particle Physics - Phenomenology ,Calorimeter (particle physics) ,010308 nuclear & particles physics ,background ,hep-ex ,Molecular ,gluon ,calibration ,LHC-B ,Expression (mathematics) ,[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,lcsh:QC770-798 ,particle: long-lived ,Event (particle physics) ,p p: colliding beams ,experimental results - Abstract
This document presents the physics case and ancillary studies for the proposed CODEX-b long-lived particle (LLP) detector, as well as for a smaller proof-of-concept demonstrator detector, CODEX-$\beta$, to be operated during Run 3 of the LHC. Our development of the CODEX-b physics case synthesizes `top-down' and `bottom-up' theoretical approaches, providing a detailed survey of both minimal and complete models featuring LLPs. Several of these models have not been studied previously, and for some others we amend studies from previous literature: In particular, for gluon and fermion-coupled axion-like particles. We moreover present updated simulations of expected backgrounds in CODEX-b's actively shielded environment, including the effects of shielding propagation uncertainties, high-energy tails and variation in the shielding design. Initial results are also included from a background measurement and calibration campaign. A design overview is presented for the CODEX-$\beta$ demonstrator detector, which will enable background calibration and detector design studies. Finally, we lay out brief studies of various design drivers of the CODEX-b experiment and potential extensions of the baseline design, including the physics case for a calorimeter element, precision timing, event tagging within LHCb, and precision low-momentum tracking., Comment: 99 pages, 36 figures. Journal version
- Published
- 2020