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Measurement of the weak mixing angle using the forward–backward asymmetry of Drell–Yan events in ... formula ... collisions at 8... formula ...

机译：使用Drell-Yan事件在...公式碰撞时的前向后不对称性来测量弱混合角

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摘要

A measurement is presented of the effective leptonic weak mixing angle (

{sin}^{2} θ_{eff}^{ℓ}

) using the forward–backward asymmetry of Drell–Yan lepton pairs (

μ μ

and

e

e

) produced in proton–proton collisions at

\sqrt{s} = 8 TeV

at the CMS experiment of the LHC. The data correspond to integrated luminosities of 18.8 and

19.6 {fb}^{- 1}

in the dimuon and dielectron channels, respectively, containing 8.2 million dimuon and 4.9 million dielectron events. With more events and new analysis techniques, including constraints obtained on the parton distribution functions from the measured forward–backward asymmetry, the statistical and systematic uncertainties are significantly reduced relative to previous CMS measurements. The extracted value of

{sin}^{2} θ_{eff}^{ℓ}

from the combined dilepton data is

{sin}^{2} θ_{eff}^{ℓ} = 0.23101 \pm 0.00036 (stat) \pm 0.00018 (syst) \pm 0.00016 (theo) \pm 0.00031 (parton distributions in proton) = 0.23101 \pm 0.00053

机译：给出了有效的轻子弱混合角的测量值（ < msup> sin 2 θ eff ℓ < / msubsup> ），使用Drell-Yan轻子对的前后对称性（

μμ和ee），是在\sqrt{s< mo> =8}

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专利

1. Measurement of the Forward-Backward Asymmetry in the Drell-Yan Dilepton Production in Proton-Proton Collisions at the CMS Experiment at the LHC [J] . V. Shalaev, I. Gorbunov, S. Shmatov EPJ Web of Conferences . 2018,第12期

机译：在大型强子对撞机的CMS实验中质子-质子碰撞中Drell-Yan Dilepton生产中的向前-向后不对称性的测量
2. Measurement of the Forward-Backward Asymmetry in the Drell-Yan Dilepton Production in Proton-Proton Collisions at the CMS Experiment at the LHC [J] . V. Shalaev, I. Gorbunov, S. Shmatov EPJ Web of Conferences . 2018,第10期

机译：在大型强子对撞机的CMS实验中质子-质子碰撞中Drell-Yan Dilepton生产中的向前-向后不对称性的测量
3. Measurement of forward-backward asymmetry A_(FB) and of the weak mixing angle in processes of dilepton production in proton-proton collisions at √s = 7 TeV in the CMS experiment at the LHC [J] . Gorbunov I.N., Shmatov S.V. Physics of atomic nuclei . 2013,第9期

机译：在LHC的CMS实验中，质子-质子碰撞的质子-质子碰撞中的质子-质子碰撞中的质子产生过程中向前-向后不对称A_（FB）和弱混合角的测量。
4. Estimation of Z′ boson parameters by the forward-backward asymmetry of Drell-Yan process at 7 TeV at the LHC [C] . Pevzner A., Skalozub V. 2015 International Young Scientists Forum on Applied Physics . 2015

机译：LHC在7 TeV下通过Drell-Yan过程的前后不对称估计Z'玻色子参数
5. Measurement of the Drell-Yan differential cross section and forward-backward asymmetry in proton antiproton decays to electron positron events using the DZero detector. [D] . Gelhaus, Raymond. 2005

机译：使用DZero检测器测量质子反质子衰变至电子正电子事件中Drell-Yan微分截面和前后不对称。
6. Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at ... formula ...... formula ... [O] . V. Khachatryan, A. M. Sirunyan, A. Tumasyan, -1

机译：...公式... ...公式... pp碰撞中的Drell–Yan轻子对的前后反向不对称性
7. Measurement of the weak mixing angle using the forward–backward asymmetry of Drell–Yan events in $$mathrm {p}mathrm {p}$$ p p collisions at 8 $$,ext {TeV}$$ TeV [O] . A. M. Sirunyan, A. Tumasyan, W. Adam, 2018

机译：使用Drell-yan事件的前后不对称测量弱混合角度在$$ mathrm {p} mathrm {p} $$ p p p p p p p p p p p p p p p p p p p p p p. $$ tev

Measurement of the weak mixing angle using the forward–backward asymmetry of Drell–Yan events in ... formula ... collisions at 8... formula ...

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