Search Results - "Gonidec, A."
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1
Searches for lepton number violation and resonances in K±→πμμ decays
Published in Physics letters. B (01-06-2017)“…The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit…”
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2
Space charge in ionization detectors and the NA48 electromagnetic calorimeter
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (1999)“…The subject of space charge due to positive ions slowly moving in parallel plate ionization chambers is considered. A model for the degradation of the detector…”
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3
Precise tests of low energy QCD from Ke4 decay properties
Published in The European physical journal. C, Particles and fields (01-12-2010)Get full text
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4
First observation and study of the K± → π±π0e+e− decay
Published in Physics letters. B (10-01-2019)“…The NA48/2 experiment at CERN reports the first observation of the K±→π±π0e+e− decay from an exposure of 1.7×1011 charged kaon decays recorded in 2003–2004. A…”
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5
A precision measurement of direct CP violation in the decay of neutral kaons into two pions
Published in Physics letters. B (19-09-2002)“…The direct CP violation parameter Re(ϵ′/ϵ) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. The…”
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6
New measurement of the decay branching ratio and hadronic form factors
Published in Physics letters. B (29-08-2012)“…A sample of more than one million K +/- ? p + p - e +/- ? (K e 4) decay candidates with less than one percent background contamination has been collected by…”
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7
First observation and study of the K ± → π 0 π 0 μ ± ν decay
Published in The journal of high energy physics (01-03-2024)“…Abstract The NA48/2 experiment at CERN reports the first observation of the K ± → π 0 π 0 μ ± ν decay based on a sample of 2437 candidates with 15% background…”
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8
Search for the dark photon in π0 decays
Published in Physics letters. B (30-06-2015)“…A sample of 1.69×107 fully reconstructed π0→γe+e− decay candidates collected by the NA48/2 experiment at CERN in 2003–2004 is analyzed to search for the dark…”
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9
Search for the dark photon in π 0 decays
Published in Physics letters. B (01-06-2015)Get full text
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10
A new measurement of the K plus or minus arrow right pi plus or minus gamma gamma K plus or minus arrow right pi plus or minus gamma gamma decay at the NA48/2 experiment
Published in Physics letters. B (01-03-2014)“…The NA48/2 experiment at CERN collected two data samples with minimum bias trigger conditions in 2003 and 2004. A measurement of the rate and dynamic…”
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11
Detailed study of the K ± → π 0 π 0 e ± ν (K e4 00 ) decay properties
Published in The journal of high energy physics (01-08-2014)Get full text
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12
Measurement of the branching ratio of the decay
Published in Physics letters. B (13-03-2013)“…From the 2002 data taking with a neutral kaon beam extracted from the CERN-SPS, the NA48/1 experiment observed 97 I 0 a IL + mu - I12 A= mu candidates with a…”
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13
Recent NA48/2 results on rare kaon decays
Published in EPJ Web of Conferences (01-01-2019)“…NA48/2 results contributing to ChPT testing are presented. A sample of 1663 events of the rare decay $ K^ \pm \to \mu ^ \pm ve^ + e^ - $ has been selected with…”
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Journal Article Conference Proceeding -
14
Measurement of the branching ratio of the decay KL → π±e∓ν and extraction of the CKM parameter |Vus
Published in Physics letters. B (18-11-2004)Get full text
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15
New measurement of the K super(+)/---> pi super(+/-) mu super(+) mu super(-) decay
Published in Physics letters. B (28-02-2011)“…A sample of 3120 K super(+/-)--> pi super(+/-) mu super(+) mu super(-) decay candidates with (3.3+/-0.7)% background contamination has been collected by the…”
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16
Measurement of the branching ratio of the decay Ξ 0 → Σ + μ − ν ¯ μ
Published in Physics letters. B (01-03-2013)Get full text
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17
ChPT test at NA48 and NA62 experiment at CERN
Published in Nuclear and particle physics proceedings (01-01-2015)Get full text
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18
Precision measurement of the ratio BR(KS→π+π−e+e−)/BR(KL→π+π−πD0)
Published in Physics letters. B (03-01-2011)“…The KS→π+π−e+e− decay mode was investigated using the data collected in 2002 by the NA48/1 Collaboration. With about 23 k KS→π+π−e+e− events and 59 k…”
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New precise measurements of the [Xi] super(0)--> g and [Xi] super(0)-->[sigma] super(0)g decay asymmetries
Published in Physics letters. B (04-10-2010)“…The decay asymmetries of the weak radiative hyperon decays [Xi] super(0)--> g and [Xi] super(0)-->[sigma] super(0)g have been measured with high precision…”
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20
Precision measurement of the ratio [inline image][inline image]
Published in Physics letters. B (03-01-2011)“…The K sub(S--[pi][super]+[pi][super]-e[super]+e[super]- decay mode was investigated using the data collected in 2002 by the NA48/1 Collaboration. With about 23…”
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