| 000 | 03101nlm1a2200397 4500 | ||
|---|---|---|---|
| 001 | 664678 | ||
| 005 | 20231030041938.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35862 | ||
| 090 | _a664678 | ||
| 100 | _a20210513a2020 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aUpdated measurement of decay-time-dependent CP asymmetries in D0→K+K− and D0→π+π− decays _fR. Aaij, C. A. Beteta, T. Ackernley [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 42 tit.] | ||
| 330 | _aA search for decay-time-dependent charge-parity (CP) asymmetry in D0→K+K− and D0→π+π− decays is performed at the LHCb experiment using proton-proton collision data recorded at a center-of-mass energy of 13 TeV, and corresponding to an integrated luminosity of 5.4 fb−1. The D0 mesons are required to originate from semileptonic decays of b hadrons, such that the charge of the muon identifies the flavor of the neutral D meson at production. The asymmetries in the effective decay widths of D0 and ¯D0 mesons are determined to be AΓ(K+K−)=(−4.3±3.6±0.5)×10−4 and AΓ(π+π−)=(2.2±7.0±0.8)×10−4, where the uncertainties are statistical and systematic, respectively. The results are consistent with CP symmetry and, when combined with previous LHCb results, yield AΓ(K+K−)=(−4.4±2.3±0.6)×10−4 and AΓ(π+π−)=(2.5±4.3±0.7)×10−4. | ||
| 461 |
_tPhysical Review D _oparticles, fields, gravitation, and cosmology |
||
| 463 |
_tVol. 101, iss. 1 _v[012005, 12 p.] _d2020 |
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| 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 |
_aAdeva _bB. _gBernardo |
|
| 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 |
|
| 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/PhysRevD.101.012005 | |
| 942 | _cCF | ||