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CERN Document Server 2,018 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.61 секунд. 
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Model-independent analysis of Higgs spin and CP properties in the process $e^+ e^- \to t \bar t \Phi$ / Godbole, R.M. (CERN ; Utrecht U.) ; Hangst, C. (KIT, Karlsruhe) ; Muhlleitner, M. (KIT, Karlsruhe) ; Rindani, S.D. (Ahmedabad, Phys. Res. Lab) ; Sharma, P. (Ahmedabad, Phys. Res. Lab)
In this paper we investigate methods to study the $t\bar{t}$ Higgs coupling. The spin and CP properties of a Higgs boson are analysed in a model-independent way in its associated production with a $t\bar{t}$ pair in high-energy $e^+e^-$ collisions. [...]
arXiv:1103.5404; CERN-PH-TH-2011-019; ITP-UU-11-09; ITP-UU-11-09; SFB-CPP-11-12.- 2011 - 28 p. - Published in : Eur. Phys. J. C 71 (2011) 1681 Preprint: PDF; External link: Preprint
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Top quark pair properties in the production and decays of $t\bar{t}$ events at ATLAS / Schäfer, R (Wuppertal U.)
In proton-proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion. [...]
ATL-PHYS-PROC-2014-072. - 2014. - 7 p.
Original Communication (restricted to ATLAS) - Full text
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CP-mixing in the H->ZZ*->4l channel in ATLAS / Gustavino, G (Roma1 INFN)
Study of the spin-parity of the Higgs and in particular of the CP-mixing in the leptonic channel H->ZZ*->4l based on Matrix Element analytical calculation. Presentation of the strategy of the 8D Likelihood Fit, related closure tests and expected limits with a statistic of 300 1/fb and 3000 1/fb..
ATL-PHYS-SLIDE-2014-091.- Geneva : CERN, 2014 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Strong CP-conservation and Higgs particles / Kim, B R
PITHA-81-18. - 1981. - 19 p.
CERN library copies
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First Measurements of Spin Correlation Using Semi-leptonic $t\bar{t}$ Events at ATLAS / Lemmer, Boris
This poster presents the results of the first measurement of $t\bar{t}$ spin correlations in the lepton+jets channel at ATLAS. By using a dedicated up/down type quark separation in the reconstruction, two hadronic spin analyzers were used to measure spin correlations..
ATL-PHYS-SLIDE-2014-724.- Geneva : CERN, 2014 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : TOP2014: 7th International Workshop on Top Quark Physics, Cannes, France, 29 Sep - 3 Oct 2014
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Top quark pair property measurements and $t\bar{t}+X$, using the ATLAS detector at the LHC / Rosien, Nils-Arne (Gottingen U.)
Measuring the properties of the top quark has been proven to be a reliable test of the Standard Model of particle physics (SM). [...]
ATL-PHYS-PROC-2017-059. - 2018. - 7 p.
Original Communication (restricted to ATLAS) - Open Access Article - Full text
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CP violation in top pair production at an e+e- collider / Chang, Darwin (Northwestern U. ; Taiwan, Inst. Phys.) ; Keung, Wai-Yee (Illinois U., Chicago ; CERN) ; Phillips, Ivan (Northwestern U.)
We investigate possible CP violating effects in $e^+e^-$ annihilation into top quark pairs. One of the interesting observable effects is the difference in production rates between the two CP conjugate polarized states $t_L\bar t_L$ and $t_R\bar t_R$. [...]
hep-ph/9301259; CERN-TH-6658-92-REV; NUHEP-TH-92-17-REV; CERN-TH-6658-92-REV; NUHEP-TH-92-17-REV.- Geneva : CERN, 1994 - 20 p.
Access to fulltext document: th-6658-92 - PS.GZ; 9301259 - PDF; Fulltext: PDF; - Please contact the library if you need to access this document.
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Spin Up-Down Asymmetry in the Excitation of Kr 5p' (3/2)2 by Polarized Electrons / Yu, D H ; Cvejanovic, D ; Hayes, P A ; Napier, S ; Pravica, L ; Srivastava, R ; Stauffer, A ; Williams, J F
2005 - Published in : AIP Conf. Proc.: 811 (2005) , pp. 185-190 External link: Published version from AIP
In : International Symposium on (e, 2e), Double Photoionization, and Related Topics and the Thirteenth International Symposium on Polarization and Correlation in Electronic and Atomic Collisions, Buenos Aires, Argentina, 28 - 30 Jul 2005, pp.185-190
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Top polarization and spin correlation using top pair events in ATLAS experiment / chengguang, zhu
In proton-proton collisions at the LHC, pairs of top and anti-top quarks are expected to be mostly produced through gluon fusion. Making use of the large number of top quark pairs collected in the 7 TeV data, we present measurements of the spin correlation between top and anti-top quarks using several variables and discuss their sensitivity to new physics. [...]
ATL-PHYS-SLIDE-2014-614.- Geneva : CERN, 2014 - 22 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Top Quark Pair Properties - Spin Correlation, Charge Asymmetry, and Complex Final States - at ATLAS / Brost, E (Oregon U.)
We present measurements of top quark pair properties performed with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ = 7 TeV. [...]
ATL-PHYS-PROC-2013-286. - 2014. - 5 p.
Original Communication (restricted to ATLAS) - Full text
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