Angular moments of the decay Λ b 0 → Λμ+μ− at low hadronic recoil; Journal of High Energy Physics; № 9
| Parent link: | Journal of High Energy Physics № 9.— 2018.— [146, 26 p.] |
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| সংস্থা লেখক: | , |
| অন্যান্য লেখক: | , , , , , |
| সংক্ষিপ্ত: | Title screen An analysis of the angular distribution of the decay Λ b 0 → Λμ+μ− is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately 5 fb−1. Angular observables are determined using a moment analysis of the angular distribution at low hadronic recoil, corresponding to the dimuon invariant mass squared range 15 < q2 < 20 GeV2/c4. The full basis of observables is measured for the first time. The lepton-side, hadron-side and combined forward-backward asymmetries of the decay are determined to beAℓFB=−0.39±0.04(stat)±0.01(syst),AhFB=−0.30±0.05(stat)±0.02(syst),AℓhFB=+0.25±0.04(stat)±0.01(syst).AFBℓ=−0.39±0.04(stat)±0.01(syst),AFBh=−0.30±0.05(stat)±0.02(syst),AFBℓh=+0.25±0.04(stat)±0.01(syst).The measurements are consistent with Standard Model predictions. |
| ভাষা: | ইংরেজি |
| প্রকাশিত: |
2018
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| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | http://earchive.tpu.ru/handle/11683/57720 https://doi.org/10.1007/JHEP09(2018)146 |
| বিন্যাস: | বৈদ্যুতিক গ্রন্থের অধ্যায় |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658840 |