CERN Accelerating science

CERN Preprints

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2015-07-30
07:53
$B$ flavour tagging using charm decays at the LHCb experiment / LHCb collaboration
An algorithm is described for tagging the flavour content at production of neutral $B$ mesons in the LHCb experiment. [...]
arXiv:1507.07892 ; CERN-PH-EP-2015-193 ; LHCB-PAPER-2015-027.
- 2015.
Preprint - Full text

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2015-07-30
07:53
Global Parton Distributions for the LHC Run II / Ball, Richard D
We review the next generation global PDF sets: NNPDF3.0, MMHT14 and CT14. [...]
arXiv:1507.07891 ; CERN-PH-TH-2015-177 ; EDINBURGH 2015-15.
- 2015. - 15 p.
Preprint - Full text

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2015-07-30
07:53
Interplay among transversity induced asymmetries in hadron leptoproduction / Compass Collaboration
In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. [...]
arXiv:1507.07593 ; CERN-PH-EP_2015-199.
- 2015.
Preprint - Full text

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2015-07-30
07:53
A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model / Crivellin, Andreas ; Heeck, Julian ; Stoffer, Peter
The BaBar, Belle, and LHCb collaborations have reported evidence for new physics in $B\to D\tau\nu$ and $B\to D^*\tau\nu$ of approximately $3.8\sigma$. [...]
arXiv:1507.07567 ; CERN-PH-TH-2015-168 ; ULB-15-13.
- 2015. - 14 p.
Preprint - Full text

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2015-07-30
07:52
Lorentz violation in gravity / Blas, Diego
The study of gravitational theories without Lorentz invariance plays an important role to understand different aspects of gravitation. [...]
arXiv:1507.07687 ; CERN-PH-TH-2015-143.
- 2015. - 4 p.
Preprint - Full text

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2015-07-29
17:17
Radiation levels at CERN's injectors and their impact on electronic equipment / De Carvalho Saraiva, Joao Pedro (CERN) ; Brugger, Markus (CERN)
Electronic devices operating in hostile radiation environments, such as those found close to high-energy particle accelerators, can suffer from different types of radiation induced failures. [...]
CERN-ACC-POSTER-2015-0001.
- 2013. - 5 p.

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2015-07-29
16:53
Angular analysis of the decay $ \mathrm{ B^0 \to K^{*0} \mu^{+} \mu^{-} }$ from pp collisions at $\sqrt{s}= $ 8 TeV / CMS Collaboration
The angular distributions and the differential branching fraction of the decay $ \mathrm{ B^0 \to K^{*}(892)^0 \mu^{+} \mu^{-} }$ are studied using data corresponding to an integrated luminosity of 20.5 fb$^{-1}$ collected with the CMS detector at the LHC in pp collisions at $\sqrt{s} =$ 8 TeV. [...]
CERN-PH-EP-2015-178 ; CMS-BPH-13-010-003 ; arXiv:1507.08126.
- 2015.
Additional information for the analysis - CMS AuthorList - Full text - Full text

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2015-07-29
16:44
Measurement of the branching ratio $\Gamma(\Lambda_b^0 \rightarrow \psi(2S)\Lambda^0)/\Gamma(\Lambda_b^0 \rightarrow J/\psi\Lambda^0)$ with the ATLAS detector / ATLAS Collaboration
An observation of the $\Lambda_b^0 \rightarrow \psi(2S) \Lambda^0$ decay and a comparison of its branching fraction with that of the $\Lambda_b^0 \rightarrow J/\psi \Lambda^0$ decay has been made with the ATLAS detector in proton--proton collisions at $\sqrt{s}=8\,$TeV at the LHC using an integrated luminosity of $20.6\,$fb$^{-1}$. [...]
CERN-PH-EP-2015-164 ; arXiv:1507.08202.
- 2015. - 12 p.
Previous draft version - Full text - Full text

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2015-07-28
19:50
Measurements of longitudinal and transverse momentum distributions for neutral pions in the forward-rapidity region with the LHCf detector / Adriani, O. ; Berti, E. ; Bonechi, L. ; Bongi, M. ; D’Alessandro, R. ; Del Prete, M. ; Haguenauer, M. ; Itow, Y. ; Kasahara, K. ; Kawade, K. et al. /LHCf
The transverse and longitudinal momentum distributions for inclusive neutral pions in the very forward rapidity region have been measured with the Large Hadron Collider forward detector in proton–proton collisions at sqrt(s) = 2.76 and 7TeV and in proton–lead collisions at nucleon–nucleon center-of-mass energies of sqrt(s_NN) = 5.02TeV at the LHC. Such momentum distributions in proton–proton collisions are compatible with the hypotheses of limiting fragmentation and Feynman scaling. [...]
CERN-PH-EP-2015-201.- Geneva : CERN, 2015 - 26. Draft (restricted): PDF; Fulltext: PDF;

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2015-07-28
11:33
Regge pole versus low energy resonances / Schmid, C (CERN)
1969.

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