Study of B0s→ J/ψπ+π−K+K− decays; Journal of High Energy Physics; Vol. 2021, iss. 2
| Parent link: | Journal of High Energy Physics Vol. 2021, iss. 2.— 2021.— [24, 33 p.] |
|---|---|
| Corporate Authors: | , |
| Drugi avtorji: | , , , , , , |
| Izvleček: | Title screen The decays B0s → J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays B0s → J/ψK∗0K¯¯¯¯∗0J/ψK∗0K¯∗0 and B0s → χc1(3872)K+K−, where the K+K−pair does not originate from a ϕ meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate χc1(3872)ϕ, J/ψK∗0K¯¯¯¯∗0J/ψK∗0K¯∗0, ψ(2S)ϕ and χc1(3872)K+K− states are reported. A structure, denoted as X(4740), is observed in the J/ψϕ mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to bemX(4740)=4741±6±6MeV/c2,ΓX(4740)=53±15±11MeV,mX(4740)=4741±6±6MeV/c2,ΓX(4740)=53±15±11MeV,where the first uncertainty is statistical and the second is systematic. In addition, the most precise single measurement of the mass of the B0sBs0 meson is performed and gives a value ofmB0s=5366.98±0.07±0.13MeV/c2. |
| Jezik: | angleščina |
| Izdano: |
2021
|
| Teme: | |
| Online dostop: | http://earchive.tpu.ru/handle/11683/80991 https://doi.org/10.1007/JHEP02(2021)024 |
| Format: | Elektronski Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664698 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 664698 | ||
| 005 | 20241105143711.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\35882 | ||
| 090 | |a 664698 | ||
| 100 | |a 20210514a2021 k y0engy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a US | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i |b e | |
| 182 | 0 | |a b | |
| 183 | 0 | |a cr |2 RDAcarrier | |
| 200 | 1 | |a Study of B0s→ J/ψπ+π−K+K− decays |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 80 tit.] | ||
| 330 | |a The decays B0s → J/ψπ+π−K+K− are studied using a data set corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The decays B0s → J/ψK∗0K¯¯¯¯∗0J/ψK∗0K¯∗0 and B0s → χc1(3872)K+K−, where the K+K−pair does not originate from a ϕ meson, are observed for the first time. Precise measurements of the ratios of branching fractions between intermediate χc1(3872)ϕ, J/ψK∗0K¯¯¯¯∗0J/ψK∗0K¯∗0, ψ(2S)ϕ and χc1(3872)K+K− states are reported. A structure, denoted as X(4740), is observed in the J/ψϕ mass spectrum and, assuming a Breit-Wigner parameterisation, its mass and width are determined to bemX(4740)=4741±6±6MeV/c2,ΓX(4740)=53±15±11MeV,mX(4740)=4741±6±6MeV/c2,ΓX(4740)=53±15±11MeV,where the first uncertainty is statistical and the second is systematic. In addition, the most precise single measurement of the mass of the B0sBs0 meson is performed and gives a value ofmB0s=5366.98±0.07±0.13MeV/c2. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2021, iss. 2 |v [24, 33 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a B physics | |
| 610 | 1 | |a Branching fraction | |
| 610 | 1 | |a Hadron-Hadron scattering (experiments) | |
| 610 | 1 | |a Quarkonium | |
| 610 | 1 | |a Spectroscopy | |
| 701 | 1 | |a Aaij |b R. |g Roel | |
| 701 | 1 | |a Beteta |b C. A. |g Carlos Abellan | |
| 701 | 1 | |a Ackernley |b T. | |
| 701 | 1 | |a Adeva |b B. |g Bernardo | |
| 701 | 1 | |a Eydelman |b S. I. |g Semen Isaakovich | |
| 701 | 1 | |a Kharisova |b A. E. |c nuclear technology specialist |c engineer of Tomsk Polytechnic University |f 1994- |g Anastasiya Evgenjevna |3 (RuTPU)RU\TPU\pers\46775 | |
| 701 | 1 | |a Panshin |b G. L. |c specialist in the field of informatics and computer technology |c Senior Lecturer at Tomsk Polytechnic University |f 1987- |g Gennady Leonidovich |3 (RuTPU)RU\TPU\pers\40978 |9 21367 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа информационных технологий и робототехники |b Отделение автоматизации и робототехники (ОАР) |3 (RuTPU)RU\TPU\col\23553 |
| 801 | 2 | |a RU |b 63413507 |c 20210514 |g RCR | |
| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/80991 |z http://earchive.tpu.ru/handle/11683/80991 | |
| 856 | 4 | |u https://doi.org/10.1007/JHEP02(2021)024 | |
| 942 | |c CF | ||