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CERN Document Server Sök i 455 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.56 sekunder. 
1.
Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP / ALEPH Collaboration
Electroweak measurements performed with data taken at the electron-positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3~fb$^{-1}$ collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from $130~GeV$ to $209~GeV$ [...]
arXiv:1302.3415; CERN-PH-EP-2013-022; CERN-PH-EP-2013-022.- Geneva : CERN, 2013 - 126 p. - Published in : Phys. Rep. 532 (2013) 119-244 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2013-022 - PDF; arXiv:1302.3415 - PDF; External link: Preprint
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2.
Search for Charged Higgs bosons: Combined Results Using LEP data / ALEPH, DELPHI, L3 and OPAL Collaborations
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments are statistically combined. [...]
arXiv:1301.6065; CERN-PH-EP-2012-369; CERN-PH-EP-2012-369; LHWG-Note-2012-01; ALEPH-2012-001-PHYSICS-2012-001; DELPHI-2012-001-PHYS-953; L3-Note-2835; OPAL-PR433.- Geneva : CERN, 2013 - 18 p. - Published in : Eur. Phys. J. C 73 (2013) 2463 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2012-369 - PDF; arXiv:1301.6065 - PDF; External link: Preprint
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3.
Determination of $\alpha_S$ using OPAL hadronic event shapes at $\sqrt{s}$ = 91 − 209 GeV and resummed NNLO calculations / OPAL Collaboration
Hadronic event shape distributions from e+e− annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong coupling αS. The results are based on QCD predictions complete to the next-to-next-to-leading order (NNLO), and on NNLO calculations matched to the resummed next-to-leading-log-approximation terms (NNLO+NLLA). [...]
arXiv:1101.1470; CERN-PH-EP-2010-089; CERN-PH-EP-2010-089.- Geneva : CERN, 2011 - 21 p. - Published in : Eur. Phys. J. C 71 (2011) 1733 Fulltext: CERN-PH-EP-2010-089 - PDF; arXiv:1101.1470 - PDF; External link: Preprint
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4.
$\Sigma$-antihyperon correlations in $Z^{0}$ decay and investigation of the baryon production mechanism / OPAL Collaboration
Data collected around sqrt{s}=91 GeV by the OPAL experiment at the LEP e+e- collider are used to study the mechanism of baryon formation. As the signature, the fraction of Sigma-hyperons whose baryon number is compensated by the production of a Sigma-, Lambda or Xi- antihyperon is determined. [...]
arXiv:0910.2174; CERN-PH-EP-2009-013; CERN-PH-EP-2009-013.- 2009 - 32 p. - Published in : Eur. Phys. J. C 64 (2009) 609-625 Fulltext: arXiv:0910.2174 - PDF; 10052_2009_1175_OnlinePDF - PDF; External link: Preprint
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5.
Measurement of $\alpha_{s}$ with Radiative Hadronic Events / OPAL Collaboration
Hadronic final states with a hard isolated photon are studied using data taken at centre-of-mass energies around the mass of the Z0 boson with the OPAL detector at LEP. The strong coupling alpha S is extracted by comparing data and QCD predictions for event shape observables at average reduced centre-of-mass energies ranging from 24 GeV to 78 GeV, and the energy dependence of alpha S is studied. [...]
arXiv:0902.1128; CERN-PH-EP-2007-032; CERN-PH-EP-2007-032.- Geneva : CERN, 2008 - 31 p. - Published in : Eur. Phys. J. C 53 (2008) 21-39 Fulltext: arXiv:0902.1128 - PDF; CERN-PH-EP-2007-032 - PDF; Springer Open Access article: PDF; External link: Fulltext
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6.
Search for Charged Higgs Bosos in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189-209 GeV / OPAL collaboration
A search is made for charged Higgs bosons predicted by Two-Higgs-Doublet extensions of the Standard Model (2HDM) using electron-positron collision data collected by the OPAL experiment at sqrts=189-209 GeV, corresponding to an integrated luminosity of approximately 600pb-1. Charged Higgs bosons are assumed to be pair-produced and to decay into qq, tnt or AWpm. [...]
arXiv:0812.0267; CERN-PH-EP-2008-016; CERN-PH-EP-2008-016.- Geneva : CERN, 2012-07-24 - 32 p. - Published in : Eur. Phys. J. C 72 (2012) 2076 Fulltext: PDF; External links: Fulltext; Fulltext
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7.
Measurement of the quark to photon fragmentation function through the inclusive production of prompt photons in hadronic $Z^0$ decays / OPAL Collaboration
The inclusive production of prompt photons with energy above 10 GeV is measured using the OPAL detector in hadronic Z^0 decays at LEP. In contrast to previous measurements, the prompt photons were not required to be isolated. [...]
hep-ex/9708020; CERN-PPE-97-086; CERN-PPE-97-86; CERN-PPE-97-086.- Geneva : CERN, 1998 - 24 p. - Published in : Eur. Phys. J. C 2 (1998) 39-48 Fulltext: PDF; External links: Fulltext; Fulltext
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8.
Measurement of the $e^+ e^- \to W^+ W^-$ cross section and W decay branching fractions at LEP / OPAL Collaboration
From a total data sample of 701.1 pb^-1 recorded with e+e- centre-of-mass energies of sqrt = 161-209 GeV with the OPAL detector at LEP, 11693 W-pair candidate events are selected. These data are used to obtain measurements of the W-pair production cross sections at 10 different centre-of-mass energies. [...]
arXiv:0708.1311; CERN-PH-EP-2007-027; OPAL-PR-424; CERN-PH-EP-2007-027.- Geneva : CERN, 2007 - 33 p. - Published in : Eur. Phys. J. C 52 (2007) 767-785 Fulltext: phep-2007-027 - PDF; arXiv:0708.1311 - PDF; External link: DURHAM
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9.
Bose-Einstein study of position-momentum correlations of charged pions in hadronic $Z^{0}$ decays / OPAL Collaboration
A study of Bose-Einstein correlations in pairs of identically charged pions produced in e+e- annihilations at the Z0 peak has been performed for the first time assuming a non-static emitting source. The results are based on the high statistics data obtained with the OPAL detector at LEP. [...]
arXiv:0708.1122; CERN-PH-EP-2007-025; OPAL-PR423; CERN-PH-EP-2007-025.- Geneva : CERN, 2007 - 25 p. - Published in : Eur. Phys. J. C 52 (2007) 787-803 Fulltext: phep-2007-025 - PDF; arXiv:0708.1122 - PDF; External link: Preprint
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10.
Search for Dirac Magnetic Monopoles in $e^{+}e^{-}$ Collisions with the OPAL Detector at LEP2 / OPAL Collaboration
This letter describes a direct search for pair produced magnetic monopoles in e+e- collisions. The analysis is based on 62.7 pb^-1 of data collected with the OPAL detector at an average centre-of-mass energy of sqrt(s)= 206.3GeV. [...]
arXiv:0707.0404; CERN-PH-EP-2007-019; CERN-PH-EP-2007-019.- Geneva : CERN, 2008 - 14 p. - Published in : Phys. Lett. B 663 (2008) 37-42 Fulltext: phep-2007-019 - PDF; arXiv:0707.0404 - PDF; External link: Fulltext
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CERN Document Server : Sök i 455 journaler efter:   1 - 10nästaslut  gå till journal:
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1 Chang, Chi-Chao
1 Chang, Chi-Han
1 Chang, Chi-Ju
14 Chang, Chi-Ming
1 Chang, Chi-Yuan
2 Chang, Chia Cheng
1 Chang, Chia-Cheng
5 Chang, Chia-Feng
10 Chang, Chia-Hao
1 Chang, Chia-Hung Vincent
1 Chang, Chia-Seng
1 Chang, Chia-Yu
6 Chang, Chieh-Yu
2 Chang, Chien-Cheng
1 Chang, Chih-Cheng
1 Chang, Chih-Kai
1 Chang, Chih-Wei
9 Chang, Chihway
1 Chang, Chin Shin
1 Chang, Chin-Chun
1 Chang, Chin-De
1 Chang, Chin-Liang
4 Chang, Ching-Hao
3 Chang, Ching-Lueh
1 Chang, Chip
2 Chang, Chip-Hong
3 Chang, Chiu-ping
1 Chang, Christian
5 Chang, Christopher
1 Chang, Christopher S
2 Chang, Chuan-Yu
6 Chang, Chulhoon
4 Chang, Chun-Fu
1 Chang, Chun-Ling L
1 Chang, Chun-Ti
1 Chang, Chun-Yu
2 Chang, Chun-peng
1 Chang, Chunxia
1 Chang, Clarence L
2 Chang, Clarence L.
1 Chang, Clayton
1 Chang, Cs
2 Chang, Cyuan-Han
1 Chang, cM C
3 Chang, cP
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