| 000 | 03122nlm1a2200397 4500 | ||
|---|---|---|---|
| 001 | 663418 | ||
| 005 | 20231030041853.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\34587 | ||
| 090 | _a663418 | ||
| 100 | _a20210210a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aObservation of New Resonances in the Λ0bπ+π− System _fR. Aaij, C. A. Beteta, T. Ackernley [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 48 tit.] | ||
| 330 | _aUsing pp collision data corresponding to an integrated luminosity of 8.5 fb−1 recorded by the LHCb experiment at center-of-mass energies of √s=7, 8, and 13 TeV, the observation of an excited B+c state in the B+cπ+π− invariant-mass spectrum is reported. The observed peak has a mass of 6841.2±0.6(stat)±0.1(syst)±0.8(B+c) MeV/c2, where the last uncertainty is due to the limited knowledge of the B+c mass. It is consistent with expectations of the B∗c(23S1)+ state reconstructed without the low-energy photon from the B∗c(13S1)+→B+cγ decay following B∗c(23S1)+→B∗c(13S1)+π+π−. A second state is seen with a global (local) statistical significance of 2.2σ (3.2σ) and a mass of 6872.1±1.3(stat)±0.1(syst)±0.8(B+c) MeV/c2, and is consistent with the Bc(21S0)+ state. These mass measurements are the most precise to date. | ||
| 461 | _tPhysical Review Letters | ||
| 463 |
_tVol. 123, iss. 15 _v[152001, 11 p.] _d2019 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 1 |
_aAaij _bR. _gRoel |
|
| 701 | 1 |
_aBeteta _bC. A. _gCarlos Abellan |
|
| 701 | 1 |
_aAckernley _bT. |
|
| 701 | 1 |
_aEydelman _bS. I. _gSemen Isaakovich |
|
| 701 | 1 |
_aKharisova _bA. E. _cnuclear technology specialist _cengineer of Tomsk Polytechnic University _f1994- _gAnastasiya Evgenjevna _2stltpush _3(RuTPU)RU\TPU\pers\46775 |
|
| 701 | 1 |
_aPanshin _bG. L. _cspecialist in the field of informatics and computer technology _cAssistant of the Department of Tomsk Polytechnic University _f1987- _gGennady Leonidovich _2stltpush _3(RuTPU)RU\TPU\pers\40978 |
|
| 701 | 1 |
_aStrokov _bS. A. _cphysicist _cengineer of Tomsk Polytechnic University _f1977- _gSergey Aleksandrovich _2stltpush _3(RuTPU)RU\TPU\pers\37442 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа информационных технологий и робототехники _bОтделение автоматизации и робототехники (ОАР) _h7952 _2stltpush _3(RuTPU)RU\TPU\col\23553 |
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20211117 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevLett.123.152001 | |
| 942 | _cCF | ||