Performance of an electromagnetic liquid krypton calorimeter based on a ribbon electrode tower structure

Barr, G.; Bruschini, Claudio; Bocquet, C.; Buchholz, P.; Cundy, D.; Doble, N.; Funk, W.; Gatignon, L.; Gonidec, A.; Hallgren, B.; Kesseler, G.; Lacourt, A.; Laverriere, G.; Linser, G.; Martini, M.; Norton, A.; Schinzel, D.; Seidl, W.; Sozzi, M.; Taureg, H.; Vossnack, O.; Wahl, H.; Wertelaers, P.; Weterings, J.; Ziółkowski, M.; Kalinin, A.; Kekelidze, V.; Kozhevnikov, Y.; Bertolotto, L.; Carassiti, V.; Duclos, J.; Gianoli, A.; Frabetti, P. L.; Savrié, M.; Zeitnitz, O.; Calvetti, M.; Lubrano, P.; Pepé, M.; Calafiura, P.; Cerri, C.; Costantini, F.; Fantechi, R.; Gorini, B.; Mannelli, I.; Marzulli, V.; Bédérède, D.; Debu, P.; Givernaud, A.; Gösset, L.; Heitzmann, J.; Mazzucato, E.; Peyaud, B.; Turlay, R.; Biino, C.; Ceccucci, A.; Maas, P.; Palestini, S.

doi:10.1016/0168-9002(95)00800-4

Cited by 55 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The liquid krypton calorimeter measures the energies, positions, and times of electromagnetic showers initiated by photons and electrons [7]. It has a length of 127 cm, corresponding to 27 radiation lengths, and consists of 13212 cells in a projective tower geometry which points to the middle of the decay volume.…”

Section: Methodsmentioning

confidence: 99%

Search for CP violation in K0→3π0 decays

Lai

Marras

Batley³

et al. 2005

Physics Letters B

Self Cite

View full text Add to dashboard Cite

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay K S → 3π 0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K 0 /K 0 → 3π 0 decays, the CP violating amplitude η 000 = A(K S → 3π 0 )/A(K L → 3π 0 ) has been found to be Re(η 000 ) = −0.002 ± 0.011 ± 0.015 and Im(η 000 ) = −0.003 ± 0.013 ± 0.017. This corresponds to an upper limit on the branching fraction of Br(K S → 3π 0 ) < 7.4 × 10 −7 at 90% confidence level. The result is used to improve knowledge of Re(ǫ) and the CPT violating quantity Im(δ) via the Bell-Steinberger relation.

show abstract

Section: Methodsmentioning

confidence: 99%

Search for CP violation in K0→3π0 decays

Lai

Marras

Batley³

et al. 2005

Physics Letters B

Self Cite

View full text Add to dashboard Cite

show abstract

“…A liquid Krypton calorimeter (LKr) [11] is used to reconstruct π 0 → γ γ decays. It is an almost homogeneous ionization chamber with an active volume of ∼10 m 3 of liquid krypton, segmented transversally into 13248 2 cm × 2 cm projective cells by a system of Cu-Be ribbon electrodes, and with no longitudinal segmentation.…”

Section: Beam and Detectorsmentioning

confidence: 99%

Determination of the S-wave π π scattering lengths from a study of K ±→π ± π 0 π 0 decays

et al. 2009

Self Cite

View full text Add to dashboard Cite

We report the results from a study of the full sample of ∼6.031 × 10 7 K ± → π ± π 0 π 0 decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experiment, the π 0 π 0 invariant mass (M 00 ) distribution shows a cusp-like anomaly in the region around M 00 = 2m + , where m + is the charged pion mass. This anomaly has been interpreted as an effect due mainly to the final state charge exchange scattering process π + π − → π 0 π 0 in K ± → π ± π + π − decay. Fits to the M 00 distribution using two different theoretical formulations provide the presently most precise determination of a 0 − a 2 , the difference between the ππ S-wave scattering lengths in the isospin I = 0 and I = 2 states. Higher-order ππ rescattering terms, included in the two formulations, allow also an independent, though less precise, determination of a 2 .

show abstract

“…Neutral decays are measured by the LKr calorimeter 9 . This is a quasi-homogeneous device consisting of ∼10 m 3 of liquid Krypton and of readout electrodes, made of 50 µm × 18 mm × 125 cm Cu-Be-Co ribbons pulled in longitudinal projective towers pointing to the centre of the decay region.…”

Section: The Detectormentioning

confidence: 99%

RESULTS ON CP VIOLATION FROM THE NA48 EXPERIMENT AT CERN

Iconomidou-Fayard

2002

Lepton-Photon 01

View full text Add to dashboard Cite

In this article the current status and latest results of the NA48 experiment at CERN are given. We present in more details the analysis performed for the Re(ε ′ /ε) measurement with the combined statistics accumulated during the 1998 and 1999 data periods. Reviewing the NA48 rare decay program, we select to underline the new results on the branching ratio and the a V factor for the decay K L → π 0 γγ and the K L →π + π − e + e − CP violating decay.

show abstract

Performance of an electromagnetic liquid krypton calorimeter based on a ribbon electrode tower structure

Cited by 55 publications

References 7 publications

Search for CP violation in K0→3π0 decays

Search for CP violation in K0→3π0 decays

Determination of the S-wave π π scattering lengths from a study of K ±→π ± π 0 π 0 decays

RESULTS ON CP VIOLATION FROM THE NA48 EXPERIMENT AT CERN

Contact Info

Product

Resources

About