Expression of interest for the CODEX-b detector
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
External organisations
- University of Rome Tor Vergata
- Laboratoire Kastler Brossel, ENS, UPMC-Paris 6
- INFN Sezione di Roma Tor Vergata
- Universidad de Santiago de Compostela
- European Organization for Nuclear Research (CERN)
- Eötvös University
- University of Cincinnati
- University of Birmingham
- Institute for Advanced Study
- Kyungpook National University
- Lawrence Berkeley National Laboratory
- California Institute of Technology
- École Normale Supérieure
- UC Berkeley
- Department of Physics and Astronomy and INFN
- Massachusetts Institute of Technology
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-β, 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-β 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.
Bibliographic note
Details
| Original language | English |
|---|---|
| Article number | 1177 |
| Journal | European Physical Journal C |
| Volume | 80 |
| Issue number | 12 |
| Publication status | Published - 21 Dec 2020 |