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CERN Document Server Sök i 17 journaler efter:  1 - 10nästa  gå till journal: Sökningen tog 0.74 sekunder. 
1.
Determination of the strong coupling constant $\alpha_s(M_Z)$ in next-to-next-to-leading order QCD using H1 jet cross section measurements / H1 Collaboration
The strong coupling constant $\alpha_s(M_Z)$ is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic $ep$ scattering (DIS) measured at HERA by the H1 collaboration using next-to-next-to-leading order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the resulting value of $\alpha_s(M_Z)$ at the $Z$-boson mass $m_Z$ are studied as a function of the choice of the renormalisation and factorisation scales. [...]
arXiv:1709.07251; DESY-17-137; DESY17-137.- 2017-11-22 - 21 p. - Published in : Eur. Phys. J. C 77 (2017) 791
- Published in : Eur. Phys. J. C 81 (2021) 738 Article from SCOAP3: PDF; Erratum: PDF; Fulltext: PDF; Preprint: PDF;
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2.
Combination of Measurements of Inclusive Deep Inelastic $e^{\pm}p$ Scattering Cross Sections and QCD Analysis of HERA Data / ZEUS Collaborations
A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current $e^{\pm}p$ scattering for zero beam polarisation. The data were taken at proton beam energies of 920, 820, 575 and 460 GeV and an electron beam energy of 27.5 GeV. [...]
arXiv:1506.06042; DESY-15-039; DESY-15-039.- 2015-12-08 - 160 p. - Published in : Eur. Phys. J. C 75 (2015) 580 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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3.
Combination of Differential D^{*\pm} Cross-Section Measurements in Deep-Inelastic ep Scattering at HERA / Abramowicz, H. (Tel Aviv U. ; Munich, Max Planck Inst.) ; Abt, I. (Munich, Max Planck Inst.) ; Adamczyk, L. (AGH-UST, Cracow) ; Adamus, M. (NCBJ, Swierk) ; Andreev, V. (Lebedev Inst.) ; Antonelli, S. (INFN, Bologna) ; Aushev, V. (Kiev, INR ; Taras Shevchenko U.) ; Aushev, Y. (Taras Shevchenko U. ; Kiev Polytechnic Inst.) ; Baghdasaryan, A. (Yerevan Phys. Inst.) ; Begzsuren, K. (Ulan Bator, Inst. Phys. Tech.) et al. /H1 Collaoration ; ZEUS Collaborations
H1 and ZEUS have published single-differential cross sections for inclusive D^{*\pm}-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q2 > 5 GeV2, electron inelasticity 0.02 < y < 0.7 and the D^{*\pm} meson's transverse momentum pT (D^*) > 1.5 GeV and pseudorapidity |eta(D^*)| < 1.5. [...]
arXiv:1503.06042; DESY-15-037; DESY-15-037.- 2015-09-22 - 37 p. - Published in : JHEP 09 (2015) 149 Article from SCOAP3: PDF; Fulltext: jt - PDF; arXiv:1503.06042 - PDF; Springer Open Access article: PDF; External links: Rivet analyses reference; Fermilab Library Server
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4.
Elastic and Proton-Dissociative Photoproduction of J/psi Mesons at HERA / 1 Collaboration
Cross sections for elastic and proton-dissociative photoproduction of J/psi mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at $ep$ centre-of-mass energies sqrt{s} approx 318 GeV and sqrt{s} approx 225 GeV, corresponding to integrated luminosities of L = 130 pb^{-1} and L = 10.8 pb^{-1}, respectively. [...]
DESY-13-058; arXiv:1304.5162; DESY-13-058.- 2013-06-15 - 34 p. - Published in : Eur. Phys. J. C 73 (2013) 2466 Preprint: PDF; External link: Preprint
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5.
Measurement of Charged Particle Spectra in Deep-Inelastic ep Scattering at HERA / 1 Collaboration
Charged particle production in deep-inelastic ep scattering is measured with the H1 detector at HERA. The kinematic range of the analysis covers low photon virtualities, 5 < Q^2 < 100 GeV^2, and small values of Bjorken-x, 10^{-4} < x < 10^{-2}. [...]
arXiv:1302.1321; DESY-13-012; DESY-13-012.- 2013-04-20 - 36 p. - Published in : Eur. Phys. J. C 73 (2013) 2406 External link: Preprint
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6.
Combined Measurement and QCD Analysis of the Inclusive ep Scattering Cross Sections at HERA / H1 and ZEUS Collaborations
A combination is presented of the inclusive deep inelastic cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current unpolarised ep scattering at HERA during the period 1994-2000. The data span six orders of magnitude in negative four-momentum-transfer squared, Q^2, and in Bjorken x. [...]
arXiv:0911.0884; DESY-09-158; DESY-09-158.- 2010 - 61 p. - Published in : JHEP 01 (2010) 109 Fulltext: PDF; Springer Open Access article: PDF; External link: DURHAM
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7.
Events with an Isolated Lepton and Missing Transverse Momentum and Measurement of {\boldmath $W$} Production at HERA / H1 Collaboration
A search for events containing an isolated electron or muon and missing transverse momentum produced in $e^{\pm}p$ collisions is performed with the H1 and ZEUS detectors at HERA. The data were taken in the period 1994--2007 and correspond to an integrated luminosity of 0.98 fb$^{-1}$. [...]
arXiv:0911.0858; DESY-09-140; DESY-09-140.- 2010 - 19 p. - Published in : JHEP 03 (2010) 035 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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8.
Operation of a free-electron laser from the extreme ultraviolet to the water window / Ackermann, W ; Asova, G ; Ayvazyan, V ; Azima, A ; Baboi, N ; Bähr, J ; Balandin, V ; Beutner, B ; Brandt, A ; Bolzmann, A et al.
SLAC-PUB-13043.- Stanford, CA : SLAC, 2007 - 7 p. - Published in : Nature Photonics: 1 (2007) , pp. 336-342 External link: Fulltext from SLAC
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9.
First operation of a free-electron laser generating GW power radiation at 32-nm wavelength / Ayvazian, V ; Baboi, N ; Bähr, J ; Balandin, V ; Beutner, B ; Bohnet, I ; Bolzmann, A ; Brandt, A ; Brinkmann, R ; Brovko, O I et al.
SLAC-PUB-12114.- Stanford, CA : SLAC, 2006 - 21 p. - Published in : Eur. Phys. J. D 37 (2006) 297-303 External link: Fulltext from SLAC
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10.
Recent Developments at PITZ / Krasilnikov, Mikhail ; Abrahamyan, Karen ; Ackermann, Wolfgang ; Asova, Galina ; Bähr, J W ; Carneiro, Jean-Paul ; Dimitrov, Gancho ; Flöttmann, Klaus ; Gensch, Ulrich ; Grabosch, H J et al.
The ability to produce high brightness electron beams as required for modern Free Electron Lasers (FELs) has been demonstrated during the first stage of the Photo Injector Test Facility at DESY Zeuthen (PITZ1). The electron source optimization at PITZ1 was successfully completed, resulting in the installation of the PITZ rf gun at the VUV-FEL (DESY, Hamburg). [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1012
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86 Tsakov, I.
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