Study of excited Λb0 states decaying to Λb0π+π− in proton-proton collisions at √s=13TeV
| Parent link: | Physics Letters B Vol. 803.— 2020.— [135345, 22 p.] |
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| Müşterek Yazar: | |
| Diğer Yazarlar: | , , , , , |
| Özet: | Title screen A study of excited Λb0 baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb−1. The existence of four excited Λb0 states: Λb0(5912)0, Λb0(5920)0, Λb0(6146)0, and Λb0(6152)0 in the Λb0π+π− mass spectrum is confirmed, and their masses are measured. The Λb0π+π− mass distribution exhibits a broad excess of events in the region of 6040-6100 MeV, whose origin cannot be discerned with the present data. |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
2020
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| Konular: | |
| Online Erişim: | https://doi.org/10.1016/j.physletb.2020.135345 |
| Materyal Türü: | Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666366 |
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| 200 | 1 | |a Study of excited Λb0 states decaying to Λb0π+π− in proton-proton collisions at √s=13TeV |f А. М. Sirunyan, A. R. Tumasyan, W. Adam [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References.: 39 tit.] | ||
| 330 | |a A study of excited Λb0 baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of up to 140fb−1. The existence of four excited Λb0 states: Λb0(5912)0, Λb0(5920)0, Λb0(6146)0, and Λb0(6152)0 in the Λb0π+π− mass spectrum is confirmed, and their masses are measured. The Λb0π+π− mass distribution exhibits a broad excess of events in the region of 6040-6100 MeV, whose origin cannot be discerned with the present data. | ||
| 461 | |t Physics Letters B | ||
| 463 | |t Vol. 803 |v [135345, 22 p.] |d 2020 | ||
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