QCALT: A tile calorimeter for KLOE-2 experiment

Balla, A.; Ciambrone, P.; Corradi, G.; Martini, M.; Paglia, C.; Pileggi, G.; Ponzio, B.; Saputi, A.; Tagnani, D.

doi:10.1016/j.nima.2009.09.106

Cited by 37 publications

(18 citation statements)

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“…In particular, the evaluation of the impact of tagging with K L charged decay reconstruction on rare K S decays measurements, such as the K S → π 0 π 0 π 0 and K S → π + π − π 0 decays is a first objective of these studies. Improved kaon identification techniques are also important in view of data which have been collected with the KLOE-2 apparatus equipped with the inner tracker [13], new scintillation calorimeters [14,15] and tagging detectors for γγ physics [16,17]. These measurements will allow to refine and extend the KLOE program on kaon physics and tests of fundamental symmetries as well as the quantum interferometry [18].…”

Section: Discussionmentioning

confidence: 99%

Improved $K_{\rm S}$ Tagging Procedure and Its Impact on Physics at KLOE-2

Silarski¹

2015

Acta Phys. Pol. B

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The KLOE experiment at the DAΦNE φ-factory performed precise studies of charged and neutral kaon physics, low energy QCD, as well as tests of CP and CPT invariance. For the new run the KLOE has been upgraded by adding new tagger systems for the γγ physics, the inner tracking chamber and two calorimeters in the final focusing region. We are also improving on kaon identification techniques, in particular algorithms for the K S meson tagging. In this article we discuss the impact of the improved tagging procedure on studies of the K S decays.

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Section: Discussionmentioning

confidence: 99%

Improved $K_{\rm S}$ Tagging Procedure and Its Impact on Physics at KLOE-2

Silarski¹

2015

Acta Phys. Pol. B

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“…A Quadrupole Calorimeter with Tiles (QCALT) [7] has been installed on the DAΦNE permanent quadrupoles to ensure coverage for K L decays. A Crystal Calorimeter with Timing (CCALT) [8] has been installed very close to the interaction point (IP), in order to increase the acceptance for photons coming from the IP.…”

Section: The Kloe-detectormentioning

confidence: 99%

Status of the KLOE-2 experiment

Cicco

2015

EPJ Web of Conferences

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Abstract. The KLOE-2 experiment at the Frascati National Laboratory of the INFN is undergoing commissioning, together with the e + e − collider DAΦNE. The KLOE apparatus, consisting of a huge Drift Chamber and an Electromagnetic Colorimeter working in a 0.5 T axial magnetic field, has been upgraded with the insertion of an Inner Tracker, two low-angle calorimeters (CCALT and QCALT) and low-angle taggers (LET and HET) for γγ−physics. Cosmic-ray muon and collision data are being acquired in order to optimize the sub-detectors operation in view of the new data taking campaign. The first results from the ongoing commissioning of the KLOE-2 detector will be shown.

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“…The detector has been upgraded i) to improve vertex reconstruction near the beam interaction region (IR), ii) to increase the acceptance for low polar angle photons, and iii) to reconstruct particles passing through the DAΦNE final focusing region. A cylindrical tracking chamber based on the Gaseous Electron Multiplier (GEM) technology [3], the first cylindrical 3-GEM detector ever built, has been installed between the beam pipe and the big Drift Chamber to track particles closer to their origin; two small stations of LYSO calorimeters [4] have been placed on the beam pipe for the detection of low polar angle photons; the final focusing region has been instrumented with sampling calorimeters done by five layers of tungsten interleaved with scintillator tiles coupled to fibers that are readout on one side by silicon photomultipliers [5]. A new data taking campaign aiming to collect O(10) fb −1 in 2-3 years of data taking is planned to extend the experimental program in kaon/hadron physics and on dark photon searches [6].…”

Section: The Kloe Experimentsmentioning

confidence: 99%

Latest results from KLOE-2

Bloise

2014

EPJ Web of Conferences

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Abstract. The KLOE experiment at the Frascati φ-factory recently obtained results on i) CPT and Lorentz invariance tests from the study of quantum interference of the neutral kaon pairs; ii) precision measurement of the branching fraction, BR(00025 syst , and iii) on dark photon searches with the analysis of the e + e − → μμγ final state. We have also studied the transition form factors of the φ meson to the pseudoscalars, π 0 and η, that is presented in a separate contribution to this volume. The KLOE experimentThe KLOE experiment at the Frascati φ-factory took most of the data in 2004-2006, with 2.5 fb −1 of integrated luminosity at the φ peak, and about 250 pb −1 at 1 GeV, 20 MeV below the resonance, for the study of di-pion and di-lepton production, and γ-γ interactions. In year 2013 we successfully completed the installation of the detector upgrades, and the DAΦNE accelerator underwent a massive renovation to improve instantaneous luminosity and operation reliability.The KLOE detector consists of a large cylindrical Drift Chamber (DC), surrounded by a leadscintillating fiber electromagnetic calorimeter (EMC), all embedded inside a superconducting coil, providing a 0.52 T axial field. The drift chamber [1], 4 m in diameter and 3.3 m long, has 12,582 all-stereo tungsten sense wires with a shell made of carbon fiber-epoxy composite. The momentum resolution is σ(p ⊥ )/p ⊥ ∼ 0.4%. The calorimeter [2] covers 98% of the solid angle. Each cell is read out at both ends by photomultipliers, both in amplitude and time. Energy and time resolutions are σ E /E = 5.7%/ √ E (GeV) and σ t = 57 ps/ √ E (GeV) ⊕ 100 ps. The detector has been upgraded i) to improve vertex reconstruction near the beam interaction region (IR), ii) to increase the acceptance for low polar angle photons, and iii) to reconstruct particles passing through the DAΦNE final focusing region. A cylindrical tracking chamber based on the Gaseous Electron Multiplier (GEM) technology [3], the first cylindrical 3-GEM detector ever built, has been installed between the beam pipe and the big Drift Chamber to track particles closer to their origin; two small stations of LYSO calorimeters [4] have been placed on the beam pipe for the detection of low polar angle photons; the final focusing region has been instrumented with sampling calorimeters done by five layers of tungsten interleaved with scintillator tiles coupled to fibers that are readout on one side by silicon photomultipliers [5]. A new data taking campaign aiming to collect O(10) fb −1 in 2-3 years of data taking is planned to extend the experimental program in kaon/hadron physics and on dark photon searches [6]. a

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QCALT: A tile calorimeter for KLOE-2 experiment

Cited by 37 publications

References 1 publication

Improved $K_{\rm S}$ Tagging Procedure and Its Impact on Physics at KLOE-2

Improved $K_{\rm S}$ Tagging Procedure and Its Impact on Physics at KLOE-2

Status of the KLOE-2 experiment

Latest results from KLOE-2

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