1,725,268 research outputs found
Insight into the nature of the P c ( 4457 ) and related pentaquarks
No full textAbstract We systematically study the electromagnetic properties of pentaquark states from different perspectives to better understand their nature, internal structure, and quantum numbers, determine their hadronization processes, and shed light on their true nature. The present study examines the magnetic moments of the P c ( 4457 ) and related hidden-charm pentaquark states with and without strangeness ( [ d d ] [ u c ] c ¯ , [ u u ] [ s c ] c ¯ , [ d d ] [ s c ] c ¯ , [ s s ] [ u c ] c ¯ and [ s s ] [ d c ] c ¯ ) , employing a comprehensive analysis that encompasses both the compact pentaquark configuration and J P = 3 2 - quantum numbers. The present study compares the results regarding the magnetic moment of the P c ( 4457 ) pentaquark state with those reported in the existing literature. The numerical results obtained in this study, when considered alongside existing literature, indicate that the magnetic moments of hidden-charm pentaquark states may offer insights into their underlying structures, which in turn can inform the distinction between their spin-parity quantum numbers. It seems that for the future experimental search of the family of hidden-charm pentaquark states, studying the electromagnetic properties of the hidden-charm pentaquark states can provide valuable information
Integrating enterprise architecture and Np Iso 4457
Get PDFThe growing importance of NP ISO 4457 and Enterprise Architecture (EA) is becoming
increasingly recognized. However, since they are distinct governance approaches with different
perspectives, organizations end up facing several challenges, which leads to efficiency
problems, waste of resources and misalignment.
This thesis proposes to overcome such problems by integrating NP ISO 4457 with EA. This
way, a Reference Architecture is developed, using Archimate, which helps organizations to
conform to the Standard’s requirements, by determining how processes and resources are
organized and realized. This is a unique contribution, since the Reference Architecture can be
applied generically to every organization
Integrating enterprise architecture and Np Iso 4457
No full textThe growing importance of NP ISO 4457 and Enterprise Architecture (EA) is becoming
increasingly recognized. However, since they are distinct governance approaches with different
perspectives, organizations end up facing several challenges, which leads to efficiency
problems, waste of resources and misalignment.
This thesis proposes to overcome such problems by integrating NP ISO 4457 with EA. This
way, a Reference Architecture is developed, using Archimate, which helps organizations to
conform to the Standard’s requirements, by determining how processes and resources are
organized and realized. This is a unique contribution, since the Reference Architecture can be
applied generically to every organization
4457. Épitaphes allégoriques du roi Charles VII
No full text4457. Épitaphes allégoriques du roi Charles VII. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). IV. Les Valois, 1328-1461. Paris : A. Picard et fils, 1904. p. 306
Rethinking the as the isoquartet molecule
Get PDFInternational audienceThe nature of the , and pentaquarks is a fascinating theoretical question. Within the molecular picture their more usual interpretation is that of and bound states. Here we argue in favor of interpreting the pentaquark as a bound state (with spin ) instead. Owing to isospin symmetry breaking effects, with this identification the partial decay width of the into will be of the same order of magnitude as the and , in contrast with the considerably larger partial decay width in the scenario. In turn, this leads to a different hidden-charm molecular pentaquark spectrum, in which there are only four or five bound states instead of the usual seven, which might explain why the predicted and () molecular partners of the and have not been observed
Predicting Pc(4440) and Pc(4457) Spins with an Different Alternative Method Instead of Using the Breit-Wigner Approach
No full textAğır kuark simetrileri ağır hadronların anlaşılmasında önemli bir rol oynar. Eğer Pc(4440) ve Pc(4457) durumları gerçekten 〖D ̅^* Σ〗_c^ molekülü ise, ağır kuark spin simetri eşleri olarak sınıflandırılabilirler. Bu kabuller, deneysel olarak belirlenemeyen spin durumlarını açıklığa kavuşturulmasının yolunu açmaktadır. Pc(4440) ve Pc(4457) durumları detaylı çalışılmalarına rağmen spin durumları henüz belirlenememiştir. Breit-Wigner parametrizasyonu rezonansları elde etmekte geleneksel yöntem olmasına rağmen, eşik etkisini dikkate almadığından dolayı Pc(4312), Pc(4440) ve Pc(4457) gibi eşiğe yakın rezonanslar için uygun değildir. Bu eksikliği bertaraf etmek için yakın zamanda önerilen ve Sill adı verilen alternatif dağılım, spin durumlarını tahmin etmekte kullanılacaktır. Pc(4312), Pc(4440) ve Pc(4457) durumları için Sill değerlerinin kullanılması, Pc(4440) ve Pc(4457)' nin spin durumlarının belirlenmesinde yardımcı olabilir.The heavy quark symmetries play a necessary role in understanding heavy hadron states. If the Pc(4440) and Pc(4457) states are indeed 〖D ̅^* Σ〗_c^ molecules, they can be classified as heavy quark spin symmetry partners. These acceptances pave the way to clarify spin states that are not determined experimentally. Despite detailed studies on the Pc(4440) and Pc(4457) states, their spin states remain undetermined. While the Breit-Wigner parameterization is the conventional method for obtaining resonance parameters, it is unsuitable for near-threshold resonances such as the Pc(4312), Pc(4440), and Pc(4457) due to its failure to account for the threshold effect. To rectify this limitation, the recently proposed alternative distribution called the Sill is employed to predict their spin states. The use of the Sill values for the Pc(4312), Pc(4440), and Pc(4457) may assist in determining the spin states of the Pc(4440) and Pc(4457)
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Linked collectors and determiners for: Flora del municipio de Culiacán, Sinaloa.
No full textNatural history specimen data linked to collectors and determiners held within, "Flora del municipio de Culiacán, Sinaloa". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/1a523735-7023-4457-8075-55ed885a5163">https://bionomia.net/dataset/1a523735-7023-4457-8075-55ed885a5163</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/1a523735-7023-4457-8075-55ed885a5163">https://gbif.org/dataset/1a523735-7023-4457-8075-55ed885a5163</a>. Formatted as a Frictionless Data package
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