# Documents in process

 2020-08-0314:39 [PUBDB-2020-02878] Journal Article et al Non-perturbative renormalization by decoupling [DESY 19-224; WUB/19-05] Physics letters / B 807, 135571 - (2020) [10.1016/j.physletb.2020.135571]   We propose a new strategy for the determination of the QCD coupling. It relies on a coupling computed in QCD with $N_{\rm f} \geq 3$ degenerate heavy quarks at a low energy scale $\mu_{\rm dec}$, together with a non-perturbative determination of the ratio $\Lambda/\mu_{\rm dec}$ in the pure gauge theory. [...] Restricted: PDF PDF (PDFA); 2020-08-0309:32 [PUBDB-2020-02876] Journal Article Kniehl, B. A. Dipole subtraction vs. phase space slicing in NLO NRQCD heavy-quarkonium production calculations 2020-07-3014:15 [PUBDB-2020-02870] Journal Article et al Structural order in plasmonic superlattices Nature Communications 11, 3821 (2020) [10.1038/s41467-020-17632-4]   The assembly of plasmonic nanoparticles into ordered 2D- and 3D-superlattices could pave the way towards new tailored materials for plasmonic sensing, photocatalysis and manipulation of light on the nanoscale. The properties of such materials strongly depend on their geometry, and accordingly straightforward protocols to obtain precise plasmonic superlattices are highly desirable. [...] Restricted: PDF PDF (PDFA); 2020-07-3007:24 [PUBDB-2020-02865] Journal Article et al Novel Method for the Generation of Stable Radiation from Free-Electron Lasers at High Repetition Rates   For more than a decade free-electron lasers (FELs) have been in operation, providing scientists from many disciplines with the benefits of ultrashort, nearly transversely coherent radiation pulses with wavelengths down to the Ångstrom range. If no further techniques are applied, the FEL will only amplify radiation from the stochastic distributed electron density in the electron bunch. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2020-07-2812:10 [PUBDB-2020-02857] Journal Article et al Site-Selective Dissociation upon Sulfur L-Edge X-ray Absorption in a Gas-Phase Protonated Peptide The journal of physical chemistry letters 11(4), 1215 - 1221 (2020) [10.1021/acs.jpclett.0c00041]   Site-selective dissociation induced by core photoexcitation of biomolecules is of key importance for the understanding of radiation damage processes and dynamics and for its promising use as “chemical scissors” in various applications. However, identifying products of site-selective dissociation in large molecules is challenging at the carbon, nitrogen, and oxygen edges because of the high recurrence of these atoms and related chemical groups. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2020-07-2811:16 [PUBDB-2020-02856] Journal Article et al Highly Scalable Multicycle THz Production with a Homemade Periodically Poled Macroscrystal Communications Physics -, - (2020)   The THz regime is widely appealing across many disciplines including solid-state physics, life sciences, and increasingly in particle acceleration.Multicycle THz pulses are typically formed via optical rectification in periodically poled crystals. However the manufacturing procedures of these crystals limit their apertures to below $\sim$1 cm, which from damage limitations of the crystal, limits the total pump power which can be employed, and ultimately, the total THz power which can be produced. [...] Restricted: PDF PDF (PDFA); 2020-07-2708:44 [PUBDB-2020-02845] Journal Article Welsch, R. Choice of the electronic basis for field-induced surface hopping Restricted: PDF PDF (PDFA); 2020-07-2415:00 [PUBDB-2020-02833] Journal Article et al Measurement of CKM matrix elements in single top quark $t$-channel production in proton-proton collisions at $\sqrt{s} =$ 13 TeV [CERN-EP-2020-047; CMS-TOP-17-012; FERMILAB-PUB-20-190-CMS; arXiv:2004.12181] Physics letters / B 808, 135609 - (2020) [10.1016/j.physletb.2020.135609]   The first direct, model-independent measurement is presented of the modulus of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements $|V_\mathrm{tb}|$, $|V_\mathrm{td}|$, and $|V_\mathrm{ts}|$, in final states enriched in single top quark $t$-channel events. The analysis uses proton-proton collision data from the LHC, collected during 2016 by the CMS experiment, at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2020-07-2414:48 [PUBDB-2020-02832] Journal Article et al The production of isolated photons in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV [CERN-EP-2020-032; CMS-HIN-18-016; FERMILAB-PUB-20-194-CMS; arXiv:2003.12797] Journal of high energy physics 2020(7), 116 (2020) [10.1007/JHEP07(2020)116]   The transverse energy (${E}_{\mathrm{T}}^{\upgamma}$) spectra of photons isolated from other particles are measured using proton-proton (pp) and lead-lead (PbPb) collisions at the LHC at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV with integrated luminosities of 27.4 pb$^{−1}$ and 404 μb$^{−1}$ for pp and PbPb data, respectively. The results are presented for photons with 25 <${E}_{\mathrm{T}}^{\upgamma}$< 200 GeV in the pseudorapidity range |η| < 1.44, and for different centrality intervals for PbPb collisions [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2020-07-2414:42 [PUBDB-2020-02831] Journal Article et al Measurement of the $\Upsilon$(1S) pair production cross section and search for resonances decaying to $\Upsilon$(1S)$\mu^+\mu^-$ in proton-proton collisions at $\sqrt{s} =$ 13 TeV [CERN-EP-2020-003; CMS-BPH-18-002; arXiv:2002.06393] Physics letters / B 808, 135578 - (2020) [10.1016/j.physletb.2020.135578]   The fiducial cross section for Y(1S) pair production in proton-proton collisions at a center-of-mass energy of 13 TeV in the region where both Y(1S) mesons have an absolute rapidity below 2.0 is measured to be 79±11(stat)±6(syst)±3(B) pb assuming the mesons are produced unpolarized. The last uncertainty corresponds to the uncertainty in the Y(1S) meson dimuon branching fraction. [...] Restricted: PDF PDF (PDFA); External link: Fulltext