CPLEAR experiment at CERN: Measurement of CP, T and CPT in the neutral kaon system

被引:0
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作者
Adler, R [1 ]
Angelopoulos, A [1 ]
Apostolakis, A [1 ]
Aslanides, E [1 ]
Backenstoss, G [1 ]
Bargassa, P [1 ]
Bee, CP [1 ]
Behnke, O [1 ]
Benelli, A [1 ]
Bertin, V [1 ]
Blanc, F [1 ]
Bloch, P [1 ]
Carlson, P [1 ]
Carroll, M [1 ]
Carvalho, J [1 ]
Cawley, E [1 ]
Charalambous, S [1 ]
Chardin, G [1 ]
Chertok, MB [1 ]
Cody, A [1 ]
Danielsson, M [1 ]
Dejardin, M [1 ]
Derre, J [1 ]
Ealet, A [1 ]
Eckart, B [1 ]
Eleftheriadis, C [1 ]
Evangelou, I [1 ]
Faravel, L [1 ]
Fassnacht, P [1 ]
Felder, C [1 ]
Ferreira-Marques, R [1 ]
Fetscher, W [1 ]
Fidecaro, M [1 ]
Filipcic, A [1 ]
Francis, D [1 ]
Fry, J [1 ]
Gabathuler, E [1 ]
Gamet, R [1 ]
Garreta, D [1 ]
Gerber, HJ [1 ]
Go, A [1 ]
Guyot, C [1 ]
Haselden, A [1 ]
Hayman, PJ [1 ]
Henry-Couannier, F [1 ]
Hollander, RW [1 ]
Hubert, E [1 ]
Jon-And, K [1 ]
Kettle, PR [1 ]
Kochowski, C [1 ]
机构
[1] Univ Basel, CH-4003 Basel, Switzerland
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Using strangeness tagging at production time, CPLEAR measures K-0/(K) over bar(0) time-dependent asymmetries in pionic and semileptonic kaon decays. From those, a set of parameters describing CP, T and CPT violation in neutral kaon mixing and decay can be determined. Strangeness tagging at decay time with the lepton charge allows for time-reversal violation to be directly observed with a significance of more than three standard deviations. The precision on each of the CPT violation parameters is discussed. The mass equality of the K-0 and (K) over bar(0) is tested within 4. x 10(-19) GeV.
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页码:372 / 382
页数:11
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