# Contributions to a conference proceedings

 2018-12-1309:54 [PUBDB-2018-05445] Report/Contribution to a conference proceedings/Contribution to a book TESLA Collaboration TTF Collaboration Meeting, June 1-2, 1993, DESY, Hamburg [TESLA Report 1993-35] TTF Collaboration Meeting, HamburgHamburg, Germany, 1 Jun 1993 - 2 Jun 1993 TESLA Reports 145 pp. (1993) Restricted: PDF PDF (PDFA); 2018-12-1215:15 [PUBDB-2018-05436] Journal Article/Report/Contribution to a conference proceedings et al Hadronic uncertainties in semileptonic $B\to K^*\mu^+\mu^-$ decays [DESY-18-158; arXiv:1809.03789] The International Conference on B-Physics at Frontier Machines, La BiodolaLa Biodola, Elba Island, 29 Apr 2018 - 4 May 2018 Proceedings of Science / International School for Advanced Studies (BEAUTY2018), 044 (2018) [10.22323/1.326.0044]   Motivated by the persisting ''anomaly'' in the measurement of $P′_5$, we review hadronic uncertainties entering the angular observables of the decay$\bar{B}\to \bar{K}^*\mu^+\mu^-$. We argue that hadronic uncertainties could account for the present measurements [...] OpenAccess: PDF PDF (PDFA); 2018-12-1215:05 [PUBDB-2018-05434] Journal Article/Report/Contribution to a conference proceedings et al Threshold resummation in the rapidity distribution for a colorless particle production at the LHC [DESY-18-115; arXiv:1807.04583] Loops and Legs in Quantum Field Theory, LL2018, St. GoarSt. Goar, Germany, 29 Apr 2018 - 4 May 2018   We present a formalism to resum large threshold logarithms to all orders in perturbative QCD for the rapidity distribution of any colorless particle at the hadron colliders. Using the derived resummed coefficients in two dimensional Mellin space, we present the rapidity distributions for the Higgs as well as for the Drell-Yan production to NNLO+NNLL accuracy at the LHC. [...] OpenAccess: PDF PDF (PDFA); 2018-12-1212:39 [PUBDB-2018-05432] Contribution to a conference proceedings et al Longitudinal Phase Space Reconstruction at FLASHForward Using a Novel Transverse Deflection Cavity, PolariX-TDS 9th International Particle Accelerator Conference, IPAC18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 Geneva, Switzerland : JACoW Publishing 1567-1570 (2018) [10.18429/JACoW-IPAC2018-TUPML017]   The FLASHForward project at DESY is an innovative beam-driven plasma-wakefield acceleration (PWFA) experiment, aiming to accelerate electron beams to GeV energies over a few centimeters of ionized gas. These accelerated beams are assessed for their capability to drive a free-electron laser. [...] OpenAccess: PDF PDF (PDFA); 2018-12-1112:23 [PUBDB-2018-05399] Contribution to a conference proceedings/Contribution to a book Schmidt, C. Progress on Multibunch FEL Performance at FLASH 9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 Geneva, Switzerland : JACoW Publishing 1452-1455 (2018) [10.18429/JACOW-IPAC2018-TUPMF080]   At the SASE-FEL user facility FLASH, superconducting TESLA-type cavities are used for acceleration. The high achievable duty cycle allows for operating with long bunch-trains, hence considerably increasing the efficiency of the machine. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-12-1112:12 [PUBDB-2018-05398] Contribution to a conference proceedings et al Anomaly Detection for Cavity Signals - Results from the European XFEL 9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 Geneva, Switzerland : JACoW Publishing 2502-2504 (2018) [10.18429/JACOW-IPAC2018-WEPMF058]   The data throughput of the European XFEL DAQ is about 1.5 Gb/s. Data depicting the cavity signal behavior is currently only saved manually. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-12-1112:08 [PUBDB-2018-05397] Contribution to a conference proceedings/Contribution to a book et al FELs Driven by Laser Plasma Accelerators Operated with Transverse Gradient Undulators 9th International Particle Accelerator Conference IPAC2018, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 Geneva, Switzerland : JACoW Publishing 1615-1618 (2018) [10.18429/JACoW-IPAC2018-TUPML035]   Laser Plasma Accelerators produce beams with a significantly higher energy spread (up to a few percent) compared to conventional electron sources. The high energy spread increases significantly the gain length when used for an FEL. [...] OpenAccess: PDF PDF (PDFA); 2018-12-0711:46 [PUBDB-2018-05296] Contribution to a conference proceedings et al Real-Time Redundancy for the 1.3 GHz Master Oscillator of the European-XFEL 21st IEEE Real Time Conference, RT2018, Colonial WilliamsburgColonial Williamsburg, USA, 9 Jun 2018 - 15 Jun 2018 18 pp. (2018) [10.3204/PUBDB-2018-05296]   Many modern large-scale facilities, like European X-ray Free Electron Laser (E-XFEL), require precise synchronisation, often down to femtosecond level. Even a very short interruption or an excessive glitch in the reference signal might break the precise time relations between subsystems. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-12-0611:28 [PUBDB-2018-05239] Report/Contribution to a conference proceedings/Contribution to a book Kuchnir, M. Contributions to the CEC/ICMC '95 [TESLA Report 1995-21] Cryogenic Engineering Conference, CEC/ICMC '95, Columbus, OhioColumbus, Ohio, USA, 17 Jul 1995 - 21 Jul 1995 TESLA Reports 102 pp. (1995) Restricted: PDF PDF (PDFA); 2018-12-0413:09 [PUBDB-2018-05183] Contribution to a conference proceedings/Contribution to a book et al Status of the Polarix-TDS Project 9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 Geneva, Switzerland : JACoW Publishing 3808-3811 (2018) [10.18429/JACOW-IPAC2018-THPAL068]   A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. This innovative CERN design requires very high manufacturing precision to guarantee highest azimuthal symmetry of the structure to avoid the deterioration of the polarization of the streaking field. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext