systematic expansion
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2022 ◽  
Vol 258 ◽  
pp. 08004
Author(s):  
Maarten Golterman ◽  
Yigal Shamir

We review dilaton chiral perturbation theory (dChPT), the effective low-energy theory for the light sector of near-conformal, confining theories. dChPT provides a systematic expansion in both the fermion mass and the distance to the conformal window. It accounts for the pions and the light scalar, the approximate Nambu–Goldstone bosons for chiral and scale symmetry, respectively. A unique feature of dChPT is the existence of a large-mass regime in which the theory exhibits approximate hyperscaling, while the expansion nevertheless remains systematic. We discuss applications to lattice data, presenting successes as well as directions for future work.


2021 ◽  
Vol 63 (1) ◽  
Author(s):  
Pierre Capel

AbstractThe clear separation of scales observed in halo nuclei between the extended halo and the compact core makes these exotic nuclei a perfect subject for effective field theory (EFT). Such description leads to a systematic expansion of the core-halo Hamiltonian, which naturally orders the nuclear-structure observables. In this short review, I show the advantages there are to include Halo-EFT descriptions within precise models of reactions. It helps identifying the nuclear-structure observables that matter in the description of the reactions, and enables us to easily bridge predictions of nuclear-structure calculations to reaction observables. I illustrate this on breakup, transfer and knockout reactions with $$^{11}$$ 11 Be, the archetypical one-neutron halo nucleus.


2021 ◽  
Vol 923 (1) ◽  
pp. 75
Author(s):  
Stephen Kerby ◽  
Amanpreet Kaur ◽  
Abraham D. Falcone ◽  
Ryan Eskenasy ◽  
Fredric Hancock ◽  
...  

Abstract The Fermi-LAT unassociated sources represent some of the most enigmatic gamma-ray sources in the sky. Observations with the Swift-XRT and -UVOT telescopes have identified hundreds of likely X-ray and UV/optical counterparts in the uncertainty ellipses of the unassociated sources. In this work we present spectral fitting results for 205 possible X-ray/UV/optical counterparts to 4FGL unassociated targets. Assuming that the unassociated sources contain mostly pulsars and blazars, we develop a neural network classifier approach that applies gamma-ray, X-ray, and UV/optical spectral parameters to yield a descriptive classification of unassociated spectra into pulsars and blazars. From our primary sample of 174 Fermi sources with a single X-ray/UV/optical counterpart, we present 132 P bzr > 0.99 likely blazars and 14 P bzr < 0.01 likely pulsars, with 28 remaining ambiguous. These subsets of the unassociated sources suggest a systematic expansion to catalogs of gamma-ray pulsars and blazars. Compared to previous classification approaches our neural network classifier achieves significantly higher validation accuracy and returns more bifurcated P bzr values, suggesting that multiwavelength analysis is a valuable tool for confident classification of Fermi unassociated sources.


2021 ◽  
pp. 108128652110224
Author(s):  
E. Vitral ◽  
J. A. Hanna

A nonlinear small-strain elastic theory is constructed from a systematic expansion in Biot strains, truncated at quadratic order. The primary motivation is the desire for a clean separation between stretching and bending energies for shells, which appears to arise only from reduction of a bulk energy of this type. An approximation of isotropic invariants, bypassing the solution of a quartic equation or computation of tensor square roots, allows stretches, rotations, stresses, and balance laws to be written in terms of derivatives of position. Two-field formulations are also presented. Extensions to anisotropic theories are briefly discussed.


2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Wenliang Li

Abstract We present a factorized decomposition of 4-point scalar conformal blocks near the lightcone, which applies to arbitrary intermediate spin and general spacetime dimensions. Then we discuss the systematic expansion in large intermediate spin and the resummations of the large-spin tails of Regge trajectories. The basic integrals for the Lorentzian inversion are given by Wilson functions.


2021 ◽  
Vol 19 (2) ◽  
pp. 187-203
Author(s):  
Khairul Hasni

Polisi Syariah Qanun Jinayat (Hukum Pidana Islam) didasarkan pada UU Syariah No.11 / 2006 tentang Pemerintahan Aceh. Qanun Jinayat adalah aturan untuk melindungi harkat dan martabat manusia serta menjaga dan melindungi masyarakat Aceh agar tetap mengikuti ajaran Islam. Polisi Syariah kemudian bertugas melakukan operasi terkait penerapan Hukum Syariah. Tugas tersebut dilakukan dengan memantau kota, mengendalikan, dan melakukan razia di tempat-tempat yang dinilai melanggar syariah di Aceh. Di antara kasus-kasus yang terjadi di Aceh yang terkait dengan Qanun Jinayat, ada yang melibatkan adat istiadat di mana Polisi Syariah kemudian menyerahkan kasus-kasus Qanun Jinayat ke pengadilan adat untuk diselesaikan. Wacana Perda (peraturan daerah) menjadi perbincangan di kalangan masyarakat Aceh. Beberapa aspek berkontribusi pada perluasan sistematis penelitian data, wawancara, dan observasi. Oleh karena itu, makalah ini mengeksplorasi otoritas politik baru terkait Qanun Jinayat, di mana pemerintah Aceh memiliki kewenangan eksklusif terkait Polisi Syariah. Moralitas kejahatan dan pengalaman gender melalui Peraturan Daerah berpotensi menimbulkan kekerasan dan diskriminasi terhadap perempuan di Provinsi ini.[Sharia police of Qanun Jinayat (Islamic Criminal Law) is based on the Sharia Law No.11/ 2006 on the Governance of Aceh. Qanun Jinayat is a rule to protect the dignity and human and keep and protect the people of Aceh from staying following the Islamic teachings. Sharia Police focuses on conducting operations in the context of implementing Sharia Law. The service is carried out by monitoring the city, controlling, and conducting raids in places deemed to violate the Sharia in Aceh. Among the cases that occurred in Aceh in the context of Qanun Jinayat, some involve the adat (traditional custom) in the implementation, in which Sharia Police then gives the Qanun Jinayat cases to the custom courts to be resolved. In Aceh, the discourses of Perda (local regulation) become the debates among the people of Aceh. Several aspects contribute to the systematic expansion of data research, interviews, and observation. Hence, the paper explores the significance of the new political authority regarding Qanun Jinayat, in which the Aceh government has exclusive authority in the implementation of the Sharia Police. A morality of crime and gender experience through regulated by the Regional Regulation can create violence and discrimination against women in this province.]


2021 ◽  
Author(s):  
Minghan Zhu ◽  
Jeffrey Zheng

Abstract This paper represents visual results for the B2 module of the MAS. Using four meta genetic variables, multiple probability measures are extracted. Variations between pairs of virus genomes could be measured. From a macroscopic viewpoint, measures can be organized in a set of 16 × 16 with (m+ 1)2 density matrix in combinations with supersymmetric properties. In view of the different types of coronary virus samples, various pairs of genomes make different projections under multiple levels of hierarchical forms of quantization matrix. Under proper selection, huge numbers of variations could be performed. Applying this transformation, a list of sample results are generated to illustrate intrinsic symmetric maps associated with selected parameters. Since this is an initial exploration, further explorations on theoretical foundation and specific applications are essential to support applicable theory and the systematic expansion on medical applications for COVID-19 patients.


2021 ◽  
Author(s):  
Minghan Zhu ◽  
Jeffrey Zheng

Abstract This paper represents sample results for the C2 and C3 modules of the MAS. Genomic index maps were generated for SARS-CoV-2 genomes from different samples worldwide, and eleven other viral genomes were selected for comparisons. Each 2D genomic index map acts as a pair of X-Y coordinate scatter points located in a specific geometric region restricted. Supported by the principle of entropy invariance and visual distributions, it is convenient to identify the variations of SARS-CoV-2 genomes in the global scope. In view of this powerful transformation structure, future exploration of the detailed systematic expansion of theory and medical applications for COVID-19 patients is required.


2021 ◽  
Author(s):  
Minghan Zhu ◽  
Jeffrey Zheng

Abstract This paper is the B2 module of the MAS. The quantification matrix is formed according to the four-base arrangement in the genome sequence. The differences in new coronavirus genome sequencing sequences in different samples were demonstrated by using the most concise methods. Using 4 primitive variable value measures, changes in the virus genome sequence base order conditions were deter-mined. When two relatively large genomic sequences are slightly different, the integrated distribution of the difference calculation is subtly similar to the Bose-einstein distribution, while the sum calculation shows a powerful distribution complexity. It can be formed under the macroscopic angle and can distinguish 16 combinations of supersymmetric structures. In view of the abundant transformation structure in this kind of transformation system, the detailed exploration remains to be followed by the systematic expansion of theory and medical application.


Author(s):  
Hai-Ling Wang ◽  
Tong Liu ◽  
Zhong-Hong Zhu ◽  
Jin-Mei Peng ◽  
Hua-Hong Zou ◽  
...  

Although the design and synthesis of high-nuclear lanthanide clusters with specific shapes and functions have been active, effective experience and rules to guide the further systematic expansion of lanthanide clusters...


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