| 000 | 02991nlm1a2200409 4500 | ||
|---|---|---|---|
| 001 | 666168 | ||
| 005 | 20231030042028.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\37372 | ||
| 035 | _aRU\TPU\network\37371 | ||
| 090 | _a666168 | ||
| 100 | _a20211209a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aMeasurement of Bc(2S)+ and B∗c(2S)+ cross section ratios in proton-proton collisions at √s=13 TeV _fA. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 28 tit.] | ||
| 330 | _aThe ratios of the Bc(2S)+ to B+c, B∗c(2S)+ to B+c, and B∗c(2S)+ to Bc(2S)+ production cross sections are measured in proton-proton collisions at √s=13 TeV, using a data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 143 fb−1. The three measurements are made in the B+c meson phase space region defined by the transverse momentum pT>15 GeV and absolute rapidity |y|<2.4, with the excited B(*)c(2S)+ states reconstructed through the B(*)+cπ+π−, followed by the B+c→J/ψπ+ and J/ψ→μ+μ− decays. The Bc(2S)+ to B+c, B∗c(2S)+ to B+c, and B∗c(2S)+ to Bc(2S)+ cross section ratios, including the unknown B(*)c(2S)+→B(*)+cπ+π− branching fractions, are (3.47±0.63(stat)±0.33(syst))%, (4.69±0.71(stat)±0.56(syst))%, and 1.35±0.32(stat)±0.09(syst), respectively. None of these ratios shows a significant dependence on the pT or |y| of the B+c meson. The normalized dipion invariant mass distributions from the decays B(*)c(2S)+→B(*)+cπ+π− are also reported. | ||
| 461 |
_tPhysical Review D _oparticles, fields, gravitation, and cosmology _d1970- |
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| 463 |
_tVol. 102, iss. 9 _v[092007, 21 p.] _d2020 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 1 |
_aSirunyan _bA. M. |
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| 701 | 1 |
_aTumasyan _bA. R. |
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| 701 | 1 |
_aAdam _bW. _gWolfgang |
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| 701 | 1 |
_aAmbrogi _bF. _gFederico |
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| 701 | 1 |
_aTyurin _bN. E. _gNikolay Evgenjevich |
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| 701 | 1 |
_aBabaev _bA. A. _cphysicist _cengineer-issledovatelskogo Polytechnic University, candidate of physical and mathematical Sciences _f1981- _gAnton Anatoljevich _2stltpush _3(RuTPU)RU\TPU\pers\35154 |
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| 701 | 1 |
_aSukhikh _bL. G. _cphysicist _cAssociate Professor of Tomsk Polytechnic University, Doctor of Sciences _f1984- _gLeonid Grigorievich _2stltpush _3(RuTPU)RU\TPU\pers\31554 |
|
| 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 _c20220818 _gRCR |
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| 856 | 4 | _uhttp://earchive.tpu.ru/handle/11683/72767 | |
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevD.102.092007 | |
| 942 | _cCF | ||