LICHARD, Peter. Pionium as a source of false events in the K -> pi nu(nu)over-bar, decays. Physical Review D. 2020, vol. 102, No 11, p. "113005-1"-"113005-5", 5 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.102.113005. |
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@article{49040, author = {Lichard, Peter}, article_number = {11}, doi = {http://dx.doi.org/10.1103/PhysRevD.102.113005}, keywords = {decay;pionium;kaon}, language = {eng}, issn = {2470-0010}, journal = {Physical Review D}, title = {Pionium as a source of false events in the K -> pi nu(nu)over-bar, decays}, url = {https://journals.aps.org/prd/abstract/10.1103/PhysRevD.102.113005}, volume = {102}, year = {2020} }
TY - JOUR ID - 49040 AU - Lichard, Peter PY - 2020 TI - Pionium as a source of false events in the K -> pi nu(nu)over-bar, decays JF - Physical Review D VL - 102 IS - 11 SP - "113005-1"-"113005-5" EP - "113005-1"-"113005-5" SN - 24700010 KW - decay;pionium;kaon UR - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.102.113005 N2 - We suggest that the decay modes of kaons with a pion and a pionium (pi(+)pi(-) atom) in the final state can constitute a not yet considered background to the very rare decay K -> pi nu(nu over bar). In fact, a part of pioniums may escape the decay region before decaying into two pi(0)s (or to pi(0)pi(0)gamma in the case of excited pionium). To illustrate the importance of this background, we show that it may even explain, under some assumptions, the unexpected K_L decay events that appeared in the KOTO experiment. ER -
LICHARD, Peter. Pionium as a source of false events in the K -\&{}gt; pi nu(nu)over-bar, decays. \textit{Physical Review D}. 2020, vol.~102, No~11, p.~''113005-1''-''113005-5'', 5 pp. ISSN~2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.102.113005.
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