Tuci, G. (2019) Measurement of the time-integrated CP asymmetry in D0 → K0 SK0 S decays at LHCb. Il nuovo cimento C, 42 (4). pp. 1-3. ISSN 1826-9885
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Abstract
The D0 → K0 SK0 S decay is a promising discovery channel for CP violation in charm. A prediction based on the Standard Model gives an upper limit for the CP asymmetry of about 1% and further enhancements could result from contributions from physics beyond the Standard Model. A preliminary measurement of the time-integrated CP asymmetry in prompt D0 → K0 SK0 S decays is presented, performed using data collected with the LHCb experiment in 2015 and 2016 at a 13 TeV pp center-of-mass energy (Run 2). The CP asymmetry is measured to be ACP (D0 → K0 SK0 S) = (0.042±0.034±0.010), where the first uncertainty is statistical and the second is systematic. This result represents a significant improvement with respect to the previous LHCb Run 1 measurement.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 21 Dec 2020 13:12 |
| Last Modified: | 21 Dec 2020 13:12 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20561 |
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