Study of the doubly charmed tetraquark T+cc

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D0D0π+ mass spectrum just below the D*+D0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar T+cc tetraquark with a quark content of ccu⎯⎯⎯d⎯⎯⎯ and spin-parity quantum numbers JP = 1+. Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D*+ mesons is consistent with the observed D0π+ mass distribution. To analyse the mass of the resonance and its coupling to the D*D system, a dedicated model is developed under the assumption of an isoscalar axial-vector T+cc state decaying to the D*D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the T+cc state. In addition, an unexpected dependence of the production rate on track multiplicity is observed

Data for: Servitization: A contemporary thematic review of four major research streams

Servitization: A contemporary thematic review of four major research streams Web appendix Relevant literature was identified through undertaking a keyword search, based on the research team’s knowledge of the topic (Transfield et al., 2003). The following terms were used: ‘after-sales services’, ‘industrial services’, ‘product-related services’, ‘product-service system’, ‘servitization’, ‘servitisation’ ‘servicification’, ‘service infusion’, ‘solutions’ and ‘transition from product to services.’ To conduct the search, the Scopus database was used, using title, abstract and keyword fields, searching the ‘Business, Management & Accounting’ subject area. Transfield et al. (2003) note the importance of only including work that meets all the inclusion criteria and which manifests none of the exclusion criteria. For this study, four criteria were applied. First, research fully published between January 2005 and December 2017 (inclusive) was selected to ensure that the review was both contemporary and comprehensive, since it is within this period that most papers have been published (Baines et al., 2017). Second, papers were selected in journals which were in the Academic Journal Guide (AJG) , thereby excluding journals from other disciplines and books/conference papers. Third, papers were published in journals ranked at least 2* by the AJG to ensure that only work that met a high quality threshold was included (according to the AJG, journals ranked 2* and above publish original research). Fourth, papers were selected that focused on manufacturers’ services and solutions, as the term ‘solution’, in particular, is sometimes used in other contexts. 272 papers provisionally met these search criteria and were retrieved, and two of the research team then read the abstracts of these papers. As Transfield et al. (2003) find, decisions regarding inclusion and exclusion remain relatively subjective and when an abstract was ambiguous (in terms of what the paper was about), the full paper was read by the research team members and a decision made about whether it should be included. This was particularly the case for the fourth criterion; that is, whether papers about ‘solutions’ were concerning this topic, or some other aspect of manufacturing. At this point, 65 papers were removed due to little focus on the core topic. The authors reviewed the list of papers from this search to ensure its completeness, and through a snowballing approach (Greenhalgh and Peacock, 2005), considered other papers in the original sample’s references and subsequent papers that referenced the original sample’s papers. Using Google Scholar, 12 additional papers were added to the final list at this point; eight through backward and four through forward snowballing. In total, 219 papers met all the criteria for inclusion in the review

Contextual differences in the interpretation of thermal perception scales – the data base from a large-scale international questionnaire study

Within the IEA EBC Annex 69 on Strategy and Practice of Adaptive Thermal Comfort in Low Energy Buildings (http://annex69.org/), we are conducting an international questionnaire study related to thermal comfort scales. Our objective is the analysis of influences on the perception of thermal comfort scales. In particular, we are looking at the effect of the current thermal state, peoples climatic background, and level of adaptation on the relationship between thermal sensation, thermal comfort, and thermal acceptance

European Reference Genome Atlas Community - Phase 1 Members - 2020-2023

This dataset presents a comprehensive list of members registered as part of the European Reference Genome Atlas (ERGA, erga-biodiversity.eu) Community during ERGA Phase 1, which spanned from 2020 to 2023. The dataset includes information on the various roles undertaken by these members, particularly those who played a key role in establishing ERGA. Founding members are individuals who joined ERGA prior to the first leadership elections in February 2021, and they were instrumental in building the initial structure of ERGA. Some of these founding members were also involved in the establishment of different ERGA Committees. The dataset further includes details about the current and former core members and chairs of the ERGA committees. Additionally, it provides a list of the current (2023) and former Council members, along with the countries or regions they represent. The dataset is organised in alphabetical order for ease of reference. The co-authors of this dataset encompass both current and former ERGA Council members, listed in alphabetical order, and the current ERGA chair, as the last author

Metadata record for: The Scales Project, a cross-national dataset on the interpretation of thermal perception scales

This dataset contains key characteristics about the data described in the Data Descriptor The Scales Project, a cross-national dataset on the interpretation of thermal perception scales. Contents: 1. human readable metadata summary table in CSV format 2. machine readable metadata file in JSON format Versioning Note:Version 2 was generated when the metadata format was updated from JSON to JSON-LD. This was an automatic process that changed only the format, not the contents, of the metadata

Metadata record for: The Scales Project, a cross-national dataset on the interpretation of thermal perception scales

This dataset contains key characteristics about the data described in the Data Descriptor The Scales Project, a cross-national dataset on the interpretation of thermal perception scales. Contents: 1. human readable metadata summary table in CSV format 2. machine readable metadata file in JSON format Versioning Note:Version 2 was generated when the metadata format was updated from JSON to JSON-LD. This was an automatic process that changed only the format, not the contents, of the metadata