| 000 | 03640nlm1a2200469 4500 | ||
|---|---|---|---|
| 001 | 662410 | ||
| 005 | 20231030041820.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\33565 | ||
| 090 | _a662410 | ||
| 100 | _a20200806a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aSearch for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV _fA. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 91 tit.] | ||
| 330 | _aA search for the standard model production of four top quarks (pp → tt¯tt¯tt¯tt¯) is reported using single-lepton plus jets and opposite-sign dilepton plus jets signatures. Proton-proton collisions are recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV in a sample corresponding to an integrated luminosity of 35.8 fb−1. A multivariate analysis exploiting global event and jet properties is used to discriminate tt¯tt¯tt¯tt¯ from tt¯tt¯ production. No significant deviation is observed from the predicted background. An upper limit is set on the cross section for tt¯tt¯tt¯tt¯ production in the standard model of 48 fb at 95% confidence level. When combined with a previous measurement by the CMS experiment from an analysis of other final states, the observed signal significance is 1.4 standard deviations, and the combined cross section measurement is 13+11−913−9+11 fb. The result is also interpreted in the framework of effective field theory. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tJournal of High Energy Physics | ||
| 463 |
_tVol. 2019, iss. 11 _v[82, 52 p.] _d2019 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aHadron-Hadron scattering (experiments) | |
| 610 | 1 | _atop physics | |
| 610 | 1 | _aадрон-адронное рассеяние | |
| 610 | 1 | _aфизика | |
| 701 | 1 |
_aSirunyan _bA. M. |
|
| 701 | 1 |
_aTumasyan _bA. R. |
|
| 701 | 1 |
_aAdam _bW. _gWolfgang |
|
| 701 | 1 |
_aAmbrogi _bF. _gFederico |
|
| 701 | 1 |
_aAsilar _bE. _gEce |
|
| 701 | 1 |
_aBergauer _bT. _gThomas |
|
| 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 |
|
| 701 | 1 |
_aYuzhakov _bA. D. _gAleksandr Dmitrievich |
|
| 701 | 1 |
_aOkhotnikov _bV. V. _cphysicist _cengineer of Tomsk Polytechnic University _f1992- _gVitaly Vladimirovich _2stltpush _3(RuTPU)RU\TPU\pers\36453 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа новых производственных технологий _bНаучно-производственная лаборатория "Импульсно-пучковых, электроразрядных и плазменных технологий" _h7882 _2stltpush _3(RuTPU)RU\TPU\col\23502 |
| 801 | 2 |
_aRU _b63413507 _c20201012 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1007/JHEP11(2019)082 | |
| 942 | _cCF | ||