Top mass dependent alpha_s^3 corrections to B-meson mixing in the MSSM

We compute the top mass dependent NLO strong interaction matching conditions to the Delta F=2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit mt->0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C1 and C4 could partially overcome the expected suppression m_t/M_SUSY.Comment: 15 pages, 6 figure

Maritime Spatial Planning Transboundary Pilot Projects and their implication in the national process in Spain

Los procesos de Ordenación del Espacio Marítimo (OEM) ya se están aplicando en muchas partes del mundo siendo Europa un punto caliente debido a la aprobación de la Directiva 2014/89/UE del Parlamento Europeo y del Consejo, de 23 de julio de 2014, por la que se establece un marco para la OEM, que obligaba a todos los Estados miembros costeros a tener planes aprobados para marzo de 2021. Para facilitar esto, se asignan fondos europeos específicos para apoyar el desarrollo de proyectos transfronterizos de ordenación del espacio marítimo entre países vecinos. Estos proyectos tienen principalmente dos objetivos, uno es proporcionar a los Estados conocimientos, capacidad y metodologías para aplicarlos en los procesos nacionales de ordenación del territorio, y otro es facilitar la coherencia entre los planes de los países que comparten la misma cuenca marítima. Este trabajo presenta una visión general del proceso español de MSP, y cómo algunos de los resultados que surgieron de estos proyectos piloto pueden ser incorporados al proceso nacional

The significance of cheese sampling in the determination of histamine concentration: Distribution pattern of histamine in ripened cheeses

Cheeses are becoming a major safety and public health concern: cheeses available in supermarkets occasionally contain high histamine concentrations that can have negative effects on consumer health. In this study, we have attempted to assess the histamine distribution pattern in ripened cheeses, with the purpose of establishing a correct cheese sampling strategy for the quantification of histamine. To this aim, histamine was determined in four distinct areas of twelve long-ripened hard cheeses: the external and internal rind, along with the outer and inner core of the wedge. The concentrations measured were remarkably different: histamine accumulated in the central core, whereas the lowest amount was found in the peripheral rind. To explain this heterogenous distribution, histamine producers were determined in the four areas by identifying the hdc sequences obtained from cheese samples. Non-starter bacteria were identified as main histamine producers; however, these microbiota were homogeneously distributed throughout the wedge. Nevertheless, the analysis of psychochemical properties of the different areas revealed an observable trend: histamine tended to accumulate in the saltier, more humid, and less oxidized areas in a wedge. Overall, this study highlights the significance of a correct sampling strategy when histamine is quantified in cheese

The Belle II vertex detector integration

Belle II DEPFET, PXD, and SVD Collaborations: et al.The Belle II experiment comes with a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric ee collider with energies tuned to ϒ(4S) resonance s=10.588 GeV. The accelerator has successfully completed the first phase of commissioning in 2016 and the first electron–positron collisions in Belle II took place in April 2018. Belle II features a newly designed silicon vertex detector based on DEPFET pixel and double-sided strip layers. Currently, a subset of the vertex detector is installed (Phase 2 of the experiment). Installation of the full detector (Phase 3) will be completed by the end of 2018. This paper describes the Phase 2 arrangement of the Belle II silicon vertex detector, with focus on the interconnection of detectors and their integration with the software framework of Belle II. Alignment issues are discussed based on detector simulations and first acquired data.This work is supported by MSCA-RISE, European Union project JENNIFER (EU grant n. 644294), MEXT, Japan, WPI, and JSPS (Japan); ARC (Australia); BMWFW (Austria); MSMT, Czech Republic, GAUK 404316 (Czech Republic); AIDA-2020 (Germany); DAE, India and DST (India); INFN (Italy); NRF-2016K1A3A7A09005605 and RSRI (Korea); MNiSW (Poland); Federal Ministry of Education and Research (BMBF, Germany); and MINECO, Spain grant FPA2015-71292-C2-1-P (Spain)

Transboundary cooperation and Mechanisms for Maritime Spatial Planning implementation. SIMNORAT Project

El proyecto SIMNORAT, Supporting Implementation of Maritime Spatial Planning in the Northern European Atlantic region (SIMNORAT), fue un proyecto cofundado por la UE de ordenación del espacio marítimo desarrollado en la región atlántica. Los objetivos del proyecto eran apoyar a los Estados miembros (EM) para aplicar la Directiva 2014/89/UE del Parlamento Europeo y del Consejo, de 23 de julio de 2014, por la que se establece un marco para la ordenación del espacio marítimo (OEM); y poner en marcha y llevar a cabo iniciativas concretas y transfronterizas de OEM entre los EM participantes en el proyecto (España, Francia y Portugal). Para desarrollar y probar aspectos de la ordenación del espacio marítimo con el fin de elaborar directrices y recomendaciones útiles en un contexto transfronterizo, las autoridades competentes de los países también participaron en el proyecto. Los resultados de SIMNORAT, como el desarrollo de una metodología conceptual para la ordenación del espacio marítimo transfronterizo, el análisis de las herramientas y los datos aplicados en el proceso de ordenación del espacio marítimo, la evaluación de las demandas y tendencias espaciales de los sectores marítimos, y la participación de las partes interesadas, ayudaron a identificar las mejores prácticas en los aspectos científicos, técnicos y sociales de la ordenación del espacio marítimo para una cooperación eficaz, especialmente en las áreas de estudio de casos transfronterizos, para mejorar la aplicación de la Directiva sobre ordenación del espacio marítimo en cada país con esfuerzos de colaboración y una visión común. Esto, a su vez, puede apoyar la creación del marco adecuado para desarrollar una economía azul sostenible en la región, gestionando el sistema socioecológico asociado en un entorno cambiante

Proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology (FLASY12)

These are the proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology, held 30 June 2012 - 4 July 2012, Dortmund, Germany.Comment: Order 400 pages, several figures including the group picture v2: corrected author list and contributio

Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV

A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7 TeV is presented. The data were collected at the LHC, with the CMS detector, and correspond to an integrated luminosity of 4.6 inverse femtobarns. No significant excess is observed above the background expectation, and upper limits are set on the Higgs boson production cross section. The presence of the standard model Higgs boson with a mass in the 270-440 GeV range is excluded at 95% confidence level.Comment: Submitted to JHE

Search for anomalous t t-bar production in the highly-boosted all-hadronic final state

A search is presented for a massive particle, generically referred to as a Z', decaying into a t t-bar pair. The search focuses on Z' resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 inverse femtobarns. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z' modeled for several widths, as well as for a Randall--Sundrum Kaluza--Klein gluon. In addition, the results constrain any enhancement in t t-bar production beyond expectations of the standard model for t t-bar invariant masses larger than 1 TeV.Comment: Submitted to the Journal of High Energy Physics; this version includes a minor typo correction that will be submitted as an erratu

Combined search for the quarks of a sequential fourth generation

Results are presented from a search for a fourth generation of quarks produced singly or in pairs in a data set corresponding to an integrated luminosity of 5 inverse femtobarns recorded by the CMS experiment at the LHC in 2011. A novel strategy has been developed for a combined search for quarks of the up and down type in decay channels with at least one isolated muon or electron. Limits on the mass of the fourth-generation quarks and the relevant Cabibbo-Kobayashi-Maskawa matrix elements are derived in the context of a simple extension of the standard model with a sequential fourth generation of fermions. The existence of mass-degenerate fourth-generation quarks with masses below 685 GeV is excluded at 95% confidence level for minimal off-diagonal mixing between the third- and the fourth-generation quarks. With a mass difference of 25 GeV between the quark masses, the obtained limit on the masses of the fourth-generation quarks shifts by about +/- 20 GeV. These results significantly reduce the allowed parameter space for a fourth generation of fermions.Comment: Replaced with published version. Added journal reference and DO

Search for New Physics with Jets and Missing Transverse Momentum in pp collisions at sqrt(s) = 7 TeV

A search for new physics is presented based on an event signature of at least three jets accompanied by large missing transverse momentum, using a data sample corresponding to an integrated luminosity of 36 inverse picobarns collected in proton--proton collisions at sqrt(s)=7 TeV with the CMS detector at the LHC. No excess of events is observed above the expected standard model backgrounds, which are all estimated from the data. Exclusion limits are presented for the constrained minimal supersymmetric extension of the standard model. Cross section limits are also presented using simplified models with new particles decaying to an undetected particle and one or two jets