CERN Accelerating science

CERN Document Server 124 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.64 секунд. 
1.
Measurement of the charge asymmetry of electrons from the decays of $W$ bosons produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV / CDF Collaboration
At the Fermilab Tevatron proton-antiproton ($p\bar{p}$) collider, high-mass electron-neutrino ($e\nu$) pairs are produced predominantly in the process $p \bar{p} \rightarrow W(\rightarrow e\nu) + X$. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the $u$- to $d$-quark parton distributions versus the fraction of the proton momentum carried by the quarks. [...]
arXiv:2107.04678; FERMILAB-PUB-21-293-E.- 2021-11-01 - 27 p. - Published in : Phys. Rev. D 104 (2021) 092002 Fulltext: Fulltext - PDF; fermilab-pub-21-293-e - PDF; 2107.04678 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
2.
A Study of the Energy Dependence of the Underlying Event in Proton-Antiproton Collisions / for the CDF Collaboration
We study charged particle production in proton-antiproton collisions at 300 GeV, 900 GeV, and 1.96 TeV. We use the direction of the charged particle with the largest transverse momentum in each event to define three regions of eta-phi space; toward, away, and transverse. [...]
arXiv:1508.05340; FERMILAB-PUB-15-361-E; FERMILAB-PUB-15-361-E.- 2015-11-23 - 21 p. - Published in : Phys. Rev. D 92 (2015) 092009 Fulltext: PDF; External links: Fermilab Accepted Manuscript; Fermilab Today Result of the Week; Rivet analyses reference
3.
A precise measurement of the $W$-boson mass with the Collider Detector at Fermilab / Aaltonen, Timo Antero (Helsinki U. ; Helsinki Inst. of Phys.) ; Amerio, Silvia (INFN, Padua ; Padua U.) ; Amidei, Dante E (Michigan U.) ; Anastassov, Anton Iankov (Fermilab ; Northwestern U.) ; Annovi, Alberto (Frascati) ; Antos, Jaroslav (Comenius U. ; Kosice, IEF) ; Apollinari, Giorgio (Fermilab) ; Appel, Jeffrey A (Fermilab) ; Arisawa, Tetsuo (Waseda U.) ; Artikov, Akram Muzafarovich (Dubna, JINR) et al. /R. C. Group
We present a measurement of the $W$-boson mass, $M_W$, using data corresponding to 2.2/fb of integrated luminosity collected in ppbar collisions at $\sqrt{s}$ = 1.96 TeV with the CDF II detector at the Fermilab Tevatron. The selected sample of 470126 $W\to e\nu$ candidates and 624708 $W\to\mu\nu$ candidates yields the measurement $M_W = 80387\pm 12$ (stat) $\pm 15$ (syst)$ = 80387 \pm 19$ MeV$/c^2$ . [...]
arXiv:1311.0894; FERMILAB-PUB-13-515-E.- 2014-04-03 - 40 p. - Published in : Phys. Rev. D 89 (2014) 072003 Fulltext: arXiv:1311.0894 - PDF; fermilab-pub-13-515-e - PDF; External links: Fermilab Library Server (fulltext available); Fermilab Today Result of the Week
4.
Study of orbitally excited $B$ mesons and evidence for a new $B\pi$ resonance / Aaltonen, Timo Antero (Helsinki U. ; Helsinki Inst. of Phys.) ; Amerio, Silvia (INFN, Padua ; Padua U.) ; Amidei, Dante E (Michigan U.) ; Anastassov, Anton Iankov (Fermilab ; Northwestern U.) ; Annovi, Alberto (Frascati) ; Antos, Jaroslav (Comenius U. ; Kosice, IEF) ; Apollinari, Giorgio (Fermilab) ; Appel, Jeffrey A (Fermilab) ; Arisawa, Tetsuo (Waseda U.) ; Artikov, Akram Muzafarovich (Dubna, JINR) et al. /R. C. Group
Using the full CDF Run II data sample, we report evidence for a new resonance, which we refer to as B(5970), found simultaneously in the $B^0\pi^+$ and $B^+\pi^-$ mass distributions with a significance of 4.4 standard deviations. We further report the first study of resonances consistent with orbitally excited $B^{+}$ mesons and an updated measurement of the properties of orbitally excited $B^0$ and $B_s^0$ mesons. [...]
arXiv:1309.5961; FERMILAB-PUB-13-393-E; PUB-13-393-E-(FERMILAB); PUB-13-393-E (FERMILAB).- 2014-07-28 - 14 p. - Published in : Phys. Rev. D 90 (2014) 012013 Fulltext: fermilab-pub-13-393-e - PDF; arXiv:1309.5961 - PDF; External links: Fermilab Today Result of the Week; Fermilab Library Server (fulltext available)
5.
A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider / CMS Collaboration
The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force—the W+, W–, and Z0 bosons—as well as to the fundamental quarks and leptons. [...]
Geneva : CERN, 2012 - 16 p. - Published in : Science 338 (2012) 1569-1575 Preprint: PDF; External link: Supplementary material
In : Breakthrough of the year
6.
The CDF-II detector: Technical design report / CDF Collaboration
FERMILAB-DESIGN-1996-01; FERMILAB-PUB-96-390-E.- 1996 - 234 p. Fulltext: PDF;
7.
Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC / CMS Collaboration
Results are presented from searches for the standard model Higgs boson in proton-proton collisions at $\sqrt{s}$=7 and 8 TeV in the CMS experiment at the LHC, using data samples corresponding to integrated luminosities of up to 5.1 inverse femtobarns at 7 TeV and 5.3 inverse femtobarns at 8 TeV. The search is performed in five decay modes: $\gamma\gamma$, ZZ, WW, $\tau^+ \tau^-$, and $b\bar{b}$. [...]
arXiv:1207.7235; CMS-HIG-12-028; CERN-PH-EP-2012-220; CMS-HIG-12-028; CERN-PH-EP-2012-220.- Geneva : CERN, 2012-08-17 - 32 p. - Published in : Phys. Lett. B 716 (2012) 30-61 Elsevier Open Access article: PDF; Fulltext: PDF; External links: Press Release; Interactions.org article; DOE Science Highlight
In : Higgs booklet, pp.30
8.
Performance of CMS muon reconstruction in pp collision events at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at $\sqrt{s}$ = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. [...]
arXiv:1206.4071; CMS-MUO-10-004; CERN-PH-EP-2012-173; CMS-MUO-10-004; CERN-PH-EP-2012-173.- Geneva : CERN, 2012 - 81 p. - Published in : JINST 7 (2012) P10002 Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
9.
Shape, transverse size, and charged hadron multiplicity of jets in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
Measurements of jet characteristics from inclusive jet production in proton-proton collisions at a centre-of-mass energy of 7 TeV are presented. The data sample was collected with the CMS detector at the LHC during 2010 and corresponds to an integrated luminosity of 36 inverse picobarns. [...]
arXiv:1204.3170; CMS-QCD-10-029; CERN-PH-EP-2012-079; CMS-QCD-10-029; CERN-PH-EP-2012-079.- Geneva : CERN, 2012 - 37 p. - Published in : JHEP 06 (2012) 160 Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
10.
Measurement of the Z/$\gamma^*$+b-jet cross section in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The production of b jets in association with a Z/gamma* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector. The inclusive cross section for Z/gamma* + b-jet production is measured in a sample corresponding to an integrated luminosity of 2.2 inverse femtobarns. [...]
arXiv:1204.1643; CMS-EWK-11-012; CERN-PH-EP-2012-049; CMS-EWK-11-012; CERN-PH-EP-2012-049.- Geneva : CERN, 2012 - 29 p. - Published in : JHEP 06 (2012) 126 Fulltext: PDF; Fulltext from Publisher: PDF; Springer Open Access article: PDF; External link: Fermilab Library

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