CERN Accelerating science

CERN Document Server 303 records found  1 - 10nextend  jump to record: Search took 0.61 seconds. 
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.
The performance of the CMS muon detector in proton-proton collisions at $\sqrt{s}$ = 7 TeV at the LHC / CMS Collaboration
The performance of all subsystems of the CMS muon detector has been studied by using a sample of proton--proton collision data at $\sqrt{s}$ = 7 TeV collected at the LHC in 2010 that corresponds to an integrated luminosity of approximately 40 inverse picobarns. The measured distributions of the major operational parameters of the drift tube (DT), cathode strip chamber (CSC), and resistive plate chamber (RPC) systems met the design specifications. [...]
arXiv:1306.6905; CMS-MUO-11-001; CERN-PH-EP-2013-072; CMS-MUO-11-001; CERN-PH-EP-2013-072.- Geneva : CERN, 2013-11-04 - 101 p. - Published in : JINST 8 (2013) P11002 Fulltext: PDF; IOP Open Access article: PDF; External link: FERMILABTODAY
6.
Exclusion of exotic top-like quarks with -4/3 electric charge using jet-charge tagging in single-lepton ttbar events at CDF / Aaltonen, T. (Helsinki Inst. of Phys.) ; Amerio, S. (INFN, Padua) ; Amidei, D. (Michigan U.) ; Anastassov, A. (Fermilab ; Northwestern U.) ; Annovi, A. (Frascati) ; Antos, J. (Comenius U.) ; Apollinari, G. (Fermilab) ; Appel, J.A. (Fermilab) ; Arisawa, T. (Waseda U.) ; Artikov, A. (Dubna, JINR) et al. /R. C. Group
We report on a measurement of the top-quark electric charge in ttbar events in which one W boson originating from the top-quark pair decays into leptons and the other into hadrons. The event sample was collected by the CDF II detector in sqrt(s)=1.96 TeV proton-antiproton collisions and corresponds to 5.6 fb^(-1). [...]
arXiv:1304.4141; FERMILAB-PUB-13-098-E; FERMILAB-PUB-13-098-E.- 2013-08-05 - 13 p. - Published in : Phys. Rev. D 88 (2013) 032003 APS published version, local copy: PDF; Fermilab Library: PDF; Fulltext: PDF; External links: Fermilab Library Server (fulltext available); Fermilab Today Result of the Week
7.
Measurement of the $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) cross sections in pp collisions at $\sqrt{s}$ = 7 TeV / CMS Collaboration
The $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8 $\pm$ 1.4 inverse picobarns of proton-proton collisions at $\sqrt{s}$ = 7 TeV, collected with the CMS detector at the LHC. The Upsilon resonances are identified through their decays to dimuons. [...]
arXiv:1303.5900; CMS-BPH-11-001; CERN-PH-EP-2012-373; CMS-BPH-11-001; CERN-PH-EP-2012-373.- Geneva : CERN, 2013-11-25 - 25 p. - Published in : Phys. Lett. B 727 (2013) 101-125 Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
8.
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
9.
Studies of jet mass in dijet and W/Z+jet events / CMS Collaboration
Invariant mass spectra for jets reconstructed using the anti-kt and Cambridge-Aachen algorithms are studied for different jet "grooming" techniques in data corresponding to an integrated luminosity of 5 inverse femtobarns, recorded with the CMS detector in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV. Leading-order QCD predictions for inclusive dijet and W/Z+jet production combined with parton-shower Monte Carlo models are found to agree overall with the data, and the agreement improves with the implementation of jet grooming methods used to distinguish merged jets of large transverse momentum from softer QCD gluon radiation..
arXiv:1303.4811; CMS-SMP-12-019; CERN-PH-EP-2013-016; CMS-SMP-12-019; CERN-PH-EP-2013-016.- Geneva : CERN, 2013-05-17 - 49 p. - Published in : JHEP 05 (2013) 090 Fulltext: PDF; Springer Open Access article: PDF; External links: Rivet analyses reference; Rivet analyses reference; Rivet analyses reference
10.
Measurement of associated production of vector bosons and $t\bar{t}$ at $\sqrt{s}$= 7 TeV / CMS Collaboration
The first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at $\sqrt{s}$ = 7 TeV is presented. The results are based on a dataset corresponding to an integrated luminosity of 5.0 inverse femtobarns, recorded by the CMS detector at the LHC in 2011. [...]
arXiv:1303.3239; CMS-TOP-12-014; CERN-PH-EP-2013-033; CMS-TOP-12-014; CERN-PH-EP-2013-033.- Geneva : CERN, 2013-04-25 - 27 p. - Published in : Phys. Rev. Lett. 110 (2013) 172002 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint

CERN Document Server : 303 records found   1 - 10nextend  jump to record:
See also: similar author names
329 Laasanen, A T
1 Laasanen, A.
121 Laasanen, A.T.
1 Laasanen, Alvin
216 Laasanen, Alvin T
216 Laasanen, Alvin T
30 Laasanen, Alvin T.
52 Laasanen, Alvin Toivo
Interested in being notified about new results for this query?
Set up a personal email alert or subscribe to the RSS feed.
Haven't found what you were looking for? Try your search on other servers:
Laasanen, A in Amazon
Laasanen, A in CERN EDMS
Laasanen, A in CERN Intranet
Laasanen, A in CiteSeer
Laasanen, A in Google Books
Laasanen, A in Google Scholar
Laasanen, A in Google Web
Laasanen, A in IEC
Laasanen, A in IHS
Laasanen, A in INSPIRE
Laasanen, A in ISO
Laasanen, A in KISS Books/Journals
Laasanen, A in KISS Preprints
Laasanen, A in NEBIS
Laasanen, A in SLAC Library Catalog
Laasanen, A in Scirus