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An Update to the Letter of Intent for MATHUSLA: Search for Long-Lived Particles at the HL-LHC
/ Alpigiani, Cristiano (Washington U., Seattle) ; Arteaga-Velázquez, Juan Carlos (IFM-UMSNH, Michoacan) ; Ball, Austin (CERN) ; Barak, Liron (Tel Aviv U.) ; Barron, Jared (Toronto U.) ; Batell, Brian (Pittsburgh U.) ; Beacham, James (Ohio State U.) ; Benhammo, Yan (Tel Aviv U.) ; Caballero-Mora, Karen Salomé (Chiapas Autonoma U.) ; Camarri, Paolo (Rome U., Tor Vergata) et al.
We report on recent progress in the design of the proposed MATHUSLA Long Lived Particle (LLP) detector for the HL-LHC, updating the information in the original Letter of Intent (LoI), see CDS:LHCC-I-031, arXiv:1811.00927. [...]
arXiv:2009.01693 ; CERN-LHCC-2020-014 ; LHCC-I-031-ADD-1 ; LHCC-I-031-ADD-1.
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2020. - 22 p.
FERMILABFN - Fulltext - Fulltext - Fulltext
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A Letter of Intent for MATHUSLA: a dedicated displaced vertex detector above ATLAS or CMS.
/ Alpigiani, Cristiano (Washington U., Seattle) ; Ball, Austin (CERN) ; Barak, Liron (Tel Aviv U.) ; Beacham, James (Ohio State U.) ; Benhammo, Yan (Tel Aviv U.) ; Cao, Tingting (Tel Aviv U.) ; Camarri, Paolo (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardarelli, Roberto (INFN, Rome2) ; Rodríguez-Cahuantzi, Mario (Puebla U., Mexico) ; Chou, John Paul (Rutgers U., Piscataway) et al.
In this Letter of Intent we propose the construction of MATHUSLA (MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles) [1], a dedicated large-volume displaced vertex detector (DV) for the HL-LHC on the surface above ATLAS or CMS. [...]
arXiv:1811.00927 ; CERN-LHCC-2018-025 ; LHCC-I-031 ; LHCC-I-031.
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2018. - 61 p.
FERMILABFN - Full text - Full text - Fulltext - Fulltext
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The MATHUSLA Test Stand
/ Alidra, Maf (CERN) ; Alpigiani, Cristiano (Washington U., Seattle) ; Ball, Austin (CERN) ; Camarri, Paolo (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardarelli, Roberto (INFN, Rome2) ; Chou, John Paul (Rutgers U., Piscataway) ; Curtin, David (Toronto U.) ; Etzion, Erez (Tel Aviv U.) ; Garabaglu, Ali (Rutgers U., Piscataway) ; Gomes, Brandon (Rutgers U., Piscataway) et al.
The rate of muons from LHC $pp$ collisions reaching the surface above the ATLAS interaction point is measured and compared with expected rates from decays of $W$ and $Z$ bosons and $b$- and $c$-quark jets. In addition, data collected during periods without beams circulating in the LHC provide a measurement of the background from cosmic ray inelastic backscattering that is compared to simulation predictions. [...]
arXiv:2005.02018.-
2021-01-01 - 18 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 985 (2021) 164661
Fulltext: PDF;
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Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
/ Curtin, David (Toronto U.) ; Drewes, Marco (Louvain U., CP3) ; McCullough, Matthew (CERN) ; Meade, Patrick (YITP, Stony Brook) ; Mohapatra, Rabindra N. (Maryland U.) ; Shelton, Jessie (Illinois U., Urbana) ; Shuve, Brian (Harvey Mudd Coll. ; SLAC) ; Accomando, Elena (Southampton U.) ; Alpigiani, Cristiano (Washington U., Seattle) ; Antusch, Stefan (Basel U.) et al.
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, and represent a natural and generic possibility for physics beyond the SM (BSM). [...]
arXiv:1806.07396; FERMILAB-PUB-18-264-T.-
2019-10-02 - 133 p.
- Published in : Rep. Prog. Phys. 82 (2019) 116201
Fulltext: 1806.07396 - PDF; fermilab-pub-18-264-t - PDF; External link: Fermilab Library Server (fulltext available)
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Cosmic-ray searches with the MATHUSLA detector
/ Alpigiani, Cristiano (Washington U., Seattle) ; Arteaga-Velázquez, J C (IFM-UMSNH, Michoacan) ; Blanco-Lira, Daniela (Puebla U., Mexico) ; Boscherini, Davide (INFN, Bologna) ; Caballero-Mora, K S (Chiapas Autonoma U.) ; Camarri, Paolo (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardarelli, Roberto (INFN, Rome2) ; Ramírez, Dennis Cazar (San Francisco de Quito U.) ; Di Sciascio, Giuseppe (INFN, Rome2) ; Fernández Téllez, Arturo (Puebla U., Mexico) et al.
The performance of the proposed MATHUSLA detector as an instrument for studying the physics of cosmic rays by measuring extensive air showers is presented. [...]
arXiv:2311.07704.
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2023. - 64 p.
Fulltext
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The ATLAS Data Acquisition and High Level Trigger system
/ Abolins, M (Michigan State U.) ; Abreu, R (CERN) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Aharrouche, M (Mainz U., Inst. Phys.) ; Aielli, G (INFN, Rome ; Rome U., Tor Vergata) ; Al-Shabibi, A (CERN) ; Aleksandrov, I (Dubna, JINR) ; Alexandrov, E (Dubna, JINR) ; Allbrooke, B M (Birmingham U.) ; Aloisio, A (INFN, Naples ; Naples U.) et al.
/ATLAS TDAQ
This paper describes the data acquisition and high level trigger system of the ATLAS experiment at the Large Hadron Collider at CERN, as deployed during Run 1. Data flow as well as control, configuration and monitoring aspects are addressed. [...]
2016 - 153 p.
- Published in : JINST 11 (2016) P06008
IOP Open Access article: PDF;
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Evidence for the charge asymmetry in $pp \rightarrow t\bar{t}$ production at $\sqrt{s}= 13$ TeV with the ATLAS detector
/ ATLAS Collaboration
Inclusive and differential measurements of the top-antitop ($t\bar{t}$) charge asymmetry $A_\text{C}^{t\bar{t}}$ and the leptonic asymmetry $A_\text{C}^{\ell\bar{\ell}}$ are presented in proton-proton collisions at $\sqrt{s} = 13$ TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider. The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosity of 139 fb$^{-1}$, combines data in the single-lepton and dilepton channels, and employs reconstruction techniques adapted to both the resolved and boosted topologies. [...]
arXiv:2208.12095; CERN-EP-2022-166.-
Geneva : CERN, 2023-08-16 - 68 p.
- Published in : JHEP 2308 (2023) 077
Fulltext: document - PDF; 2208.12095 - PDF; External link: Previous draft version
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