CERN Accelerating science

CERN Preprints

Последние добавления:
2017-08-23
11:39
Fixed-target physics at LHCb / Maurice, Emilie
The LHCb experiment has the unique possibility, among the LHC experiments, to be operated in fixed target mode, using its internal gas target SMOG. [...]
arXiv:1708.05184.
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Preprint

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2017-08-23
11:39
Performance of Multiplexed XY Resistive Micromegas detectors in a high intensity beam / Banerjee, D. (Zurich, ETH) ; Burtsev, V. (Tomsk Polytechnic U.) ; Chumakov, A. (Tomsk Polytechnic U.) ; Cooke, D. (Zurich, ETH) ; Depero, E. (Zurich, ETH) ; Dermenev, A.V. (Moscow, INR) ; Donskov, S.V. (Serpukhov, IHEP) ; Dubinin, F. (Lebedev Inst.) ; Dusaev, R.R. (Tomsk Polytechnic U.) ; Emmenegger, S. (Zurich, ETH) et al.
We present the performance of multiplexed XY resistive Micromegas detectors tested in the CERN SPS 100 GeV/c electron beam at intensities up to 3.3 $\times$ 10$^5$ e$^- $/(s$\cdot$cm$^2$). [...]
arXiv:1708.04087.
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Preprint

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2017-08-23
11:39
Non-extensive Fokker-Planck transport coefficients of heavy quarks / Bhattacharyya, Trambak (UCT-CERN Res. Ctr. ; Cape Town U.) ; Cleymans, Jean (UCT-CERN Res. Ctr. ; Cape Town U.)
In presence of the non-ideal plasma effects, Heavy Quarks (HQs) carry out non linear random walk inside Quark-Gluon Plasma (QGP) and in the small momentum transfer limit, the evolution of the HQ distribution is dictated by the Non Linear Fokker-Planck Equation (NLFPE). [...]
arXiv:1707.08425.
- 9 p.
Preprint

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2017-08-23
11:39
Observation of $\chi_{c2}\to\eta'\eta'$ and $\chi_{c0,2}\to\eta\eta'$ / BESIII Collaboration
Using a sample of $447.9\times 10^6$ $\psi(3686)$ events collected with the BESIII detector in 2009 and 2012, we study the decays $\chi_{c0,2}\to$ $\eta'\eta'$ and $\eta\eta'$. [...]
arXiv:1707.07042.
- 7 p.
Preprint

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2017-08-23
11:39
From quarks to nucleons in dark matter direct detection / Bishara, Fady (Oxford U., Theor. Phys.) ; Brod, Joachim (Tech. U., Dortmund (main)) ; Grinstein, Benjamin (UC, San Diego) ; Zupan, Jure (CERN ; Cincinnati U.)
We provide expressions for the nonperturbative matching of the effective field theory describing dark matter interactions with quarks and gluons to the effective theory of nonrelativistic dark matter interacting with nonrelativistic nucleons. [...]
arXiv:1707.06998.
- 46 p.
Preprint

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2017-08-23
11:39
Experimental results of crystal-assisted slow extraction at the SPS / Fraser, M.A. (CERN) ; Addesa, F. (INFN, Rome ; Rome U.) ; Cavoto, G. (INFN, Rome ; Rome U.) ; Galluccio, F. (INFN, Naples) ; Gilardoni, S. (CERN) ; Goddard, B. (CERN) ; Iacoangeli, F. (INFN, Rome ; Rome U.) ; Kain, V. (CERN) ; Mirarchi, D. (CERN) ; Montesano, S. (CERN) et al.
The possibility of extracting highly energetic particles from the Super Proton Synchrotron (SPS) by means of silicon bent crystals has been explored since the 1990's. [...]
arXiv:1707.05151.
- 4 p.
Preprint

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2017-08-23
11:39
Non-perturbative renormalization of tensor currents: strategy and results for $N_f = 0$ and $N_f = 2$ QCD / Pena, Carlos (CERN) ; Preti, David (Madrid, IFT)
Tensor currents are the only quark bilinear operators lacking a non-perturbative determination of their renormalisation group (RG) running between hadronic and electroweak scales. [...]
IFT-UAM-CSIC-17-050 ; FTUAM-17-10 ; arXiv:1706.06674.
- 50 p.
Preprint

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2017-08-23
11:39
Horava gravity is asymptotically free (in 2+1 dimensions) / Barvinsky, Andrei O. (Lebedev Inst. ; Tomsk State U.) ; Blas, Diego (CERN) ; Herrero-Valea, Mario (EPFL, Lausanne, LPPC) ; Sibiryakov, Sergey M. (CERN ; Ecole Polytechnique, Lausanne ; EPFL, Lausanne, LPPC ; Moscow, INR) ; Steinwachs, Christian F. (Freiburg U.)
We compute the $\beta$-functions of marginal couplings in projectable Ho\v{r}ava gravity in $2+1$ spacetime dimensions. [...]
arXiv:1706.06809.
- 5 p.
Preprint

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2017-08-23
11:39
Geant4 Maintainability Assessed with Respect to Software Engineering References / Ronchieri, Elisabetta ; Pia, Maria Grazia ; Basaglia, Tullio (CERN) ; Canaparo, Marco
We report a methodology developed to quantitatively assess the maintainability of Geant4 with respect to software engineering references. [...]
arXiv:1704.05911.
- 5 p.
Preprint

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2017-08-22
10:19
Study of $b\bar{b}$ correlations in high energy proton-proton collisions / LHCb Collaboration
Kinematic correlations for pairs of beauty hadrons, produced in high energy proton-proton collisions, are studied. [...]
CERN-EP-2017-178 ; LHCB-PAPER-2017-020 ; arXiv:1708.05994 ; LHCB-PAPER-2017-020.
- 2017. - 29 p, 29 p.
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