This article presents a new bulk radiation damage model for p-type silicon for use in Synopsys Sentaurus TCAD. The model is shown to provide agreement between experiment and simulation for the ...voltage dependence of the leakage current and the charge collection efficiency, for fluences up to 8×10151MeVneq∕cm2.
The monastery of San Andrés de Arroyo (established in 1181) is one the best examples of Cistercian architecture in the Spanish region of Castilla y León. In this study, strontium isotope ratios were ...used to study the population of the recently excavated graveyard of this monastery. Twenty-nine individuals (of which 13 had preserved teeth) found in burials from the 13th and 14th centuries were subjected to analysis. Enamel 87Sr/86Sr ratio values obtained by using a multicollector ICP-MS instrument were used to distinguish between local and non-local individuals. Additionally, an anthropological study based on entheseal changes and other paleopathological conditions was carried out in all the exhumed individuals. This combined data allowed us to define the chemical and osteological diversity of a medieval Spanish monastery and its surrounding village. Among the usual profiles for a rural society, two individuals, both showing strong indications of being foreign to the area, were found to exhibit evidence of physical activities compatible with military training and activity. The present study can be considered as the first experimental indication that during the 13th and 14th centuries Spanish monasteries served as a last refuge for soldiers, which is compatible with historical records and previous indirect evidence.
Recent \(B\)-physics results have sparkled great interest in the search for beyond-the-Standard-Model (BSM) physics in \(b\to c\ell \bar{\nu}\) transitions. The need to analyse in a consistent manner ...big datasets for these searches, using high-statistics Monte-Carlo (MC) samples, led to the development of HAMMER, a software tool which enables to perform a fast morphing of MC-derived templates to include BSM effects and/or alternative parameterisations of long-distance effects, avoiding the need to re-generate simulated samples. This paper describes the development of RooHammerModel, an interface between this tool and the commonly-used data-fitting frameworks HistFactory and RooFit. In this document, the structure and functionality of the user interface are explained. Information of a public repository where it can be accessed is provided, as well as validation and performance studies of the interface. The methods developed in the construction of RooHammerModel can provide useful information for alternative future attempts to interface HAMMER with other data-fitting frameworks.
A search for Formula omitted violation in charmless four-body decays of Formula omitted and Formula omitted baryons with a proton and three charged mesons in the final state is performed. To cancel ...out production and detection charge-asymmetry effects, the search is carried out by measuring the difference between the Formula omitted asymmetries in a charmless decay and in a decay with an intermediate charmed baryon with the same particles in the final state. The data sample used was recorded in 2011 and 2012 with the LHCb detector and corresponds to an integrated luminosity of Formula omitted. A total of 18 Formula omitted asymmetries are considered, either accounting for the full phase space of the decays or exploring specific regions of the decay kinematics. No significant Formula omitted-violation effect is observed in any of the measurements.
Search for the rare decay [Formula omitted] Aaij, R; Beteta, C. Abellán; Adeva, B ...
The European physical journal. C, Particles and fields,
08/2019, Letnik:
79, Številka:
8
Journal Article
Recenzirano
Odprti dostop
A search for the rare leptonic decay Formula omitted is performed using proton-proton collision data corresponding to an integrated luminosity of Formula omitted collected by the LHCb experiment. The ...search is carried out in the region where the lowest of the two Formula omitted mass combinations is below Formula omitted. The data are consistent with the background-only hypothesis and an upper limit of Formula omitted at 95% confidence level is set on the branching fraction in the stated kinematic region.
The branching fraction and direct Formula omitted asymmetry of the decay Formula omitted are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of ...7 and 8 TeV, corresponding to a total integrated luminosity of 3 Formula omitted. The following results are obtained: B(B+right arrowJ/psirho+)=(3.81-0.24+0.25±0.35)x10-5,ACP(B+right arrowJ/psirho+)=-0.045-0.057+0.056±0.008,where the first uncertainties are statistical and the second systematic. Both measurements are the most precise to date.
A Dalitz plot analysis of Formula omitted decays is performed using data samples of pp collisions collected with the Formula omitted detector at centre-of-mass energies of Formula omitted and Formula ...omitted, corresponding to a total integrated luminosity of Formula omitted. A satisfactory description of the data is obtained when including a contribution representing an exotic Formula omitted resonant state. The significance of this exotic resonance is more than three standard deviations, while its mass and width are Formula omitted and Formula omitted, respectively. The spin-parity assignments Formula omitted and Formula omitted are both consistent with the data. In addition, the first measurement of the Formula omitted branching fraction is performed and gives B(B0right arrowetac(1S)K+pi-)=(5.73±0.24±0.13±0.66)x10-4,where the first uncertainty is statistical, the second systematic, and the third is due to limited knowledge of external branching fractions.
The Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with
being the largest genus (47 species) of the ...subfamily Sigmodontinae. Within this tribe, however, there are genera that have escaped a taxonomic revision, and
Thomas, 1897, constitutes a paradigmatic example of these "forgotten" Andean cricetids. Described more than a century ago, current knowledge of this externally unmistakable montane rodent is very limited, and doubts persist as to whether or not it is monotypic. After several years of field efforts in Ecuador, a considerable quantity of specimens of
were collected from various localities representing both Andean chains. Based on an extensive genetic survey of the obtained material, we can demonstrate that what is currently treated as
in Ecuador is a complex comprising at least five new species which are described in this paper. In addition, based on these noteworthy new evidence, we amend the generic diagnosis in detail, adding several key craniodental traits such as incisor procumbency and microdonty. These results indicate that
probably has a hidden additional diversity in large parts of the Colombian and Peruvian territories, inviting a necessary revision of the entire genus.
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