C. Touramanis
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View article: Design and performance of the ARIADNE+ detector, bringing novel 3D optical dual-phase LArTPCs to the large scale
Design and performance of the ARIADNE+ detector, bringing novel 3D optical dual-phase LArTPCs to the large scale Open
The ARIADNE programme is focused on the development of a scalable optical readout system for use in future ktonne LAr neutrino experiments, providing high tracking capability and low energy thresholds. Following demonstration at the 1 tonn…
View article: Model-independent extraction of form factors and $|V_{cb}|$ in $\overline{B} \rightarrow D \ell^- \overlineν_\ell$ with hadronic tagging at BaBar
Model-independent extraction of form factors and $|V_{cb}|$ in $\overline{B} \rightarrow D \ell^- \overlineν_\ell$ with hadronic tagging at BaBar Open
Using the entire BaBar $Υ(4S)$ data set, the first two-dimensional unbinned angular analysis of the semileptonic decay $\overline{B} \rightarrow D \ell^- \overlineν_\ell$ is performed, employing hadronic reconstruction of the tag-side $B$ …
View article: ARIADNE+: Large Scale Demonstration of Fast Optical Readout for Dual-Phase LArTPCs at the CERN Neutrino Platform
ARIADNE+: Large Scale Demonstration of Fast Optical Readout for Dual-Phase LArTPCs at the CERN Neutrino Platform Open
Optical readout of large scale dual-phase liquid Argon TPCs is an attractive alternative to charge readout and has been successfully demonstrated on a 2 × 2 m active region within the CERN protoDUNE cold box. ARIADNE+ uses four Timep…
View article: Exploring the Quantum Universe: Pathways to Innovation and Discovery in Particle Physics
Exploring the Quantum Universe: Pathways to Innovation and Discovery in Particle Physics Open
Particle physics studies the smallest constituents of our vast and complex universe. At such small scales, the fundamental principles of quantum physics prevail. Remarkably, the entire observable universe, now billions of light years acros…
View article: Search for heavy neutral leptons using tau lepton decays at <i>BaBaR</i>
Search for heavy neutral leptons using tau lepton decays at <i>BaBaR</i> Open
This article presents a model-independent search for an additional, mostly sterile, heavy neutral lepton (HNL), that is capable of mixing with the Standard Model τ neutrino with a mixing strength of |Uτ4|2, corresponding to the absolute sq…
View article: Search for $B$ Mesogenesis at BABAR
Search for $B$ Mesogenesis at BABAR Open
A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson decays into a baryon and a dark sector anti-baryon ($ψ_D$)…
View article: ARIADNE+: Large scale demonstration of fast optical readout for dual-phase LArTPCs at the CERN Neutrino Platform
ARIADNE+: Large scale demonstration of fast optical readout for dual-phase LArTPCs at the CERN Neutrino Platform Open
Optical readout of large scale dual-phase liquid Argon TPCs is an attractive alternative to charge readout and has been successfully demonstrated on a 2x2m active region within the CERN protoDUNE cold box. ARIADNE+ uses four Timepix3 camer…
View article: VIDARR: monitoring reactor anti-neutrinos using a plastic scintillator detector in a mobile laboratory
VIDARR: monitoring reactor anti-neutrinos using a plastic scintillator detector in a mobile laboratory Open
Technology developed for the T2K electromagnetic calorimeter has been adapted to make a small footprint, reliable, segmented detector to characterise anti-neutrinos emitted by nuclear reactors. The device has been developed and demonstrate…
View article: Search for an Axionlike Particle in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math> Meson Decays
Search for an Axionlike Particle in Meson Decays Open
Axionlike particles (ALPs) are predicted in many extensions of the standard model, and their masses can naturally be well below the electroweak scale. In the presence of couplings to electroweak bosons, these particles could be emitted in …
View article: European Strategy for Future Neutrino Physics- Part 1
European Strategy for Future Neutrino Physics- Part 1 Open
A workshop to discuss the possibilities for future neutrino investigations in Europe and the links to CERN. Part 1 features presentations: "Aims of the Workshop" by Peter Dornan of Imperial College London, "Current Situation in the Neutrin…
View article: A Novel Manufacturing Process for Glass THGEMs and First Characterisation in an Optical Gaseous Argon TPC
A Novel Manufacturing Process for Glass THGEMs and First Characterisation in an Optical Gaseous Argon TPC Open
This paper details a novel, patent pending, abrasive machining manufacturing process for the formation of sub-millimetre holes in THGEMs, with the intended application in gaseous and dual-phase TPCs. Abrasive machining favours a non-ductil…
View article: Search for Lepton Flavor Violation in $Υ(3S)\rightarrow e^{\pm}μ^{\mp}$
Search for Lepton Flavor Violation in $Υ(3S)\rightarrow e^{\pm}μ^{\mp}$ Open
We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a $b$~quark and $b$~antiquark bound state. We look for the LFV decay $Υ(3S)\rightarrow e^{\pm}μ^{\mp}$ in a sample of 118~million $Υ(3S)$ mesons …
View article: A Novel Manufacturing Process for Glass THGEMs and First\n Characterisation in an Optical Gaseous Argon TPC
A Novel Manufacturing Process for Glass THGEMs and First\n Characterisation in an Optical Gaseous Argon TPC Open
This paper details a novel, patent pending, abrasive machining manufacturing\nprocess for the formation of sub-millimetre holes in THGEMs, with the intended\napplication in gaseous and dual-phase TPCs. Abrasive machining favours a\nnon-duc…
View article: Search for Darkonium in $e^+e^-$ Collisions
Search for Darkonium in $e^+e^-$ Collisions Open
Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existenc…
View article: Optical Readout of the ARIADNE LArTPC Using a Timepix3-Based Camera
Optical Readout of the ARIADNE LArTPC Using a Timepix3-Based Camera Open
The ARIADNE Experiment, utilising a 1-ton dual-phase Liquid Argon Time Projection Chamber (LArTPC), aims to develop and mature optical readout technology for large scale LAr detectors. This paper describes the characterisation, using cosmi…
View article: Optical Readout of the ARIADNE LArTPC Using a Timepix3-Based Camera
Optical Readout of the ARIADNE LArTPC Using a Timepix3-Based Camera Open
The ARIADNE Experiment, utilising a 1-ton dual-phase Liquid Argon Time Projection Chamber (LArTPC), aims to develop and mature optical readout technology for large scale LAr detectors. This paper describes the characterisation, using cosmi…
View article: Letter of Intent: Large-scale demonstration of the ARIADNE LArTPC optical readout system at the CERN Neutrino Platform
Letter of Intent: Large-scale demonstration of the ARIADNE LArTPC optical readout system at the CERN Neutrino Platform Open
Optical readout of dual phase liquid argon TPCs has been successfully demonstrated by the ARIADNE 1-ton experiment to be a very viable and attractive alternative to charge readout. TPX3 cameras have been shown to be capable of providing a …
View article: ARIADNE: A novel photographic 1-ton dual-phase LArTPC
ARIADNE: A novel photographic 1-ton dual-phase LArTPC Open
ARIADNE is a 1-ton dual-phase Time Projection Chamber (TPC) with a novel optical readout. The secondary scintillation light produced in the holes of a THick Gas Electron Multiplier (THGEM) is captured by Electron Multiplying Charge Coupled…
View article: ARIADNE -- A Novel Optical LArTPC: Technical Design Report and Initial Characterisation using the CERN T9 Testbeam and Cosmic Muons
ARIADNE -- A Novel Optical LArTPC: Technical Design Report and Initial Characterisation using the CERN T9 Testbeam and Cosmic Muons Open
ARIADNE is a 1-ton two-phase liquid argon (LAr) time projection chamber (TPC) featuring a novel optical readout. Four electron-multiplying charge-coupled device (EMCCD) cameras are mounted externally, and these capture the secondary scinti…
View article: VIDARR: Aboveground Reactor Monitoring
VIDARR: Aboveground Reactor Monitoring Open
Technology developed for the T2K electromagnetic calorimeter has been adapted to make a small footprint, reliable, segmented detector to characterise anti-neutrinos emitted by nuclear reactors. Based on the design of the T2K Near Detector …
View article: Search for a Stable Six-Quark State at BABAR
Search for a Stable Six-Quark State at BABAR Open
Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate. We report the first search for a stable, doubly strange s…
View article: Research and Development for Near Detector Systems Towards Long Term Evolution of Ultra-precise Long-baseline Neutrino Experiments
Research and Development for Near Detector Systems Towards Long Term Evolution of Ultra-precise Long-baseline Neutrino Experiments Open
With the discovery of non-zero value of $θ_{13}$ mixing angle, the next generation of long-baseline neutrino (LBN) experiments offers the possibility of obtaining statistically significant samples of muon and electron neutrinos and anti-ne…
View article: Monitoring Reactor Anti-Neutrinos Using a Plastic Scintillator Detector in a Mobile Laboratory
Monitoring Reactor Anti-Neutrinos Using a Plastic Scintillator Detector in a Mobile Laboratory Open
Technology developed for the T2K electromagnetic calorimeter has been adapted to make a small footprint, reliable, segmented detector to characterise anti-neutrinos emitted by nuclear reactors. The device has been developed and demonstrate…
View article: Measurement of the Spectral Function for the τ⁻→ K⁻K[subscript S]ν[subscript τ] Decay
Measurement of the Spectral Function for the τ⁻→ K⁻K[subscript S]ν[subscript τ] Decay Open
The decay τ⁻→K⁻K[subscript S]ν[subscript τ] has been studied using 430×10⁶ e⁺e⁻→τ⁺τ⁻ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the K⁻K[subscr…
View article: Search for the decay mode B[superscript 0] → pp[¯ over p][¯ over p]
Search for the decay mode B[superscript 0] → pp[¯ over p][¯ over p] Open
A search is presented for the four-body decay B[superscript 0] → pp[¯ over p][¯ over p] in a sample of 471 million B[¯ B] pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e[superscript +]e[superscript …
View article: Study of ϒ(1S) Radiative Decays to γπ[superscript +]π[superscript −] and γ K[superscript +]K[superscript −]
Study of ϒ(1S) Radiative Decays to γπ[superscript +]π[superscript −] and γ K[superscript +]K[superscript −] Open
We study the ϒ(1S) radiative decays to γπ[superscript +}]π[superscript -] and γK[superscript +]Kp[superscript -] using data recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e[superscript +]e[superscript -] co…
View article: Study of the process e[superscript +] e[superscript −] → π[supsercript +]π[superscript −]η using initial state radiation
Study of the process e[superscript +] e[superscript −] → π[supsercript +]π[superscript −]η using initial state radiation Open
We study the process e[superscript +]e[superscript -] →π[superscript +]π[superscript -]ηγ, where the photon is radiated from the initial state. About 8000 fully reconstructed events of this process are selected from the BABAR data sample w…
View article: ARIADNE, a Photographic Two-Phase LAr TPC
ARIADNE, a Photographic Two-Phase LAr TPC Open
There is a significant R\&D effort ongoing in the liquid argon (LAr) time projection chamber (TPC) community. Due to the scintillation and ionisation properties of LAr, coupled with its low cost, it is possible to construct detectors with …
View article: Measurement of the e [superscript +] e [superscript −] → π [superscript +] π [superscript −] π [superscript 0] π [superscript 0] cross section using initial-state radiation at BABAR
Measurement of the e [superscript +] e [superscript −] → π [superscript +] π [superscript −] π [superscript 0] π [superscript 0] cross section using initial-state radiation at BABAR Open
The process e [superscript +] e [superscript -] →π [superscript +] π [superscript -] 2π [superscript 0] γ is investigated by means of the initial-state radiation technique, where a photon is emitted from the incoming electron or positron. …
View article: ARIADNE: Beam Time and Resources Request
ARIADNE: Beam Time and Resources Request Open
The ARIADNE research programme is based around developing an optical readout system for use in LAr TPC detectors, which could potentially have a number of bene ts over the currently used segmented anode planes - particularly in matters of …