Report
Measurement of the charge asymmetry for the $K_S \rightarrow \pi e \nu$ decay and test of CPT symmetry with the KLOE detector
| العنوان: | Measurement of the charge asymmetry for the $K_S \rightarrow \pi e \nu$ decay and test of CPT symmetry with the KLOE detector |
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| المؤلفون: | Anastasi, A., Babusci, D., Berłowski, M., Bloise, C., Bossi, F., Branchini, P., Budano, A., Cao, B., Capon, G., Ceradini, F., Ciambrone, P., Curciarello, F., Czerwiński, E., D'Agostini, G., Danè, E., De Leo, V., De Lucia, E., De Santis, A., De Simone, P., Di Cicco, A., Di Domenico, A., Domenici, D., D'Uffizi, A., Fantini, A., Fantini, G., Fermani, P., Fiore, S., Gajos, A., Gauzzi, P., Giovannella, S., Graziani, E., Ivanov, V. L., Johansson, T., Kang, X., Kisielewska-Kamińska, D., Kozyrev, E. A., Krzemień, W., Kupść, A., Loffredo, S., Lukin, P. A., Mandaglio, G., Martini, M., Messi, R., Miscetti, S., Moricciani, D., Moskal, P., Passeri, A., Patera, V., del Rio, E. Perez, Raha, N., Santangelo, P., Schioppa, M., Selce, A., Silarski, M., Sirghi, F., Solodov, E. P., Tortora, L., Venanzoni, G., Wiślicki, W., Wolke, M. |
| سنة النشر: | 2018 |
| المجموعة: | High Energy Physics - Experiment |
| مصطلحات موضوعية: | High Energy Physics - Experiment |
| الوصف: | Using 1.63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment about $7\times 10^4$ $K_S \rightarrow \pi^{\pm}e^{\mp}\nu$ decays have been reconstructed. The measured value of the charge asymmetry for this decay is $A_S = (-4.9 \pm 5.7_{stat} \pm 2.6_{syst}) \times 10^{-3}$, which is almost twice more precise than the previous KLOE result. The combination of these two measurements gives $A_S = (-3.8 \pm 5.0_{stat} \pm 2.6_{syst}) \times 10^{-3}$ and, together with the asymmetry of the $K_L$ semileptonic decay, provides significant tests of the CPT symmetry. The obtained results are in agreement with CPT invariance. Comment: submitted to JHEP |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/JHEP09(2018)021 |
| URL الوصول: | http://arxiv.org/abs/1806.08654 |
| رقم الانضمام: | edsarx.1806.08654 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/JHEP09(2018)021 |
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