Finite-range simple effective interaction including tensor terms

An existing parametrization of the simple effective interaction (SEI) that is able to reproduce the experimentally known crossing between the 2⁢3/2 and 1⁢5/2 single-particle (s.p.) proton levels in neutron-rich Ni isotopes has been generalized. We have added a short-range tensor force in order to describe the observed gaps between the 1⁢ℎ11/2 and 1⁢7/2⁢s.p. proton levels in the Sn isotopic chain and between the 1⁢13/2 and 1⁢ℎ9/2⁢s.p. neutron levels in =82 isotones without compromising the good agreement with the splittings in the Ni isotopes. Different scenarios where tensor effects are relevant are considered with the new interaction and its predictions are compared with results from other mean-field models and experimental data where available

Cluster radioactivity in very heavy nuclei: a new perspective

Exotic cluster decay of very heavy nuclei is studied using the microscopic nuclear potentials obtained by folding density dependent M3Y effective interaction with the densities of the cluster and the daughter nuclei. The microscopic nuclear potential, Coulomb interaction and the centrifugal barrier arising out of spin-parity conservation are used to obtain the potential between the cluster and the daughter nuclei. Half life values are calculated in the WKB framework and the preformation factors are extracted. The latter values are seen to have only a very weak dependence on the mass of the emitted cluster.Comment: 4 pages including 2 table

Search for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at √s=13 Tev

Results are presented of a search for a heavy Majorana neutrino N ⠃ decaying into two same-flavor leptons ⠃ (electrons or muons) and a quark-pair jet. A model is considered in which the N ⠃ is an excited neutrino in a compositeness scenario. The analysis is performed using a sample of proton-proton collisions at & RADIC;s = 13 TeV recorded by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 138 fb-1. The data are found to be in agreement with the standard model prediction. For the process in which the N ⠃ is produced in association with a lepton, followed by the decay of the N ⠃ to a same-flavor lepton and a quark pair, an upper limit at 95% confidence level on the product of the cross section and branching fraction is obtained as a function of the N ⠃ mass mN ⠃ and the compositeness scale ⠄. For this model the data exclude the existence of Ne (N & mu;) for mN ⠃ below 6.0 (6.1) TeV, at the limit where mN ⠃ is equal to ⠄. For mN ⠃ N 1 TeV, values of ⠄ less than 20 (23) TeV are excluded. These results represent a considerable improvement in sensitivity, covering a larger parameter space than previous searches in pp collisions at 13 TeV.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3

Do gender differences matter in Acute Heart Failure? Insights from Indian College of Cardiology – National Heart Failure Registry, India

Background: Real-world investigations focused on gender-associated characteristics of Acute Heart failure (AHF) are lacking. The current study, from a national heart failure registry, aims to investigate gender-based patterns and outcomes among AHF patients in India. Methods: This prospective Indian College of Cardiology National Heart Failure Registry enrolled patients admitted with AHF in 17 centres from 2019 to 2021. Demographics, aetiology, co-morbidities, laboratory investigations, electrocardiogram, and echo parameters were captured. In-hospital 30-day and one-year mortality rates were recorded. The prescription and adherence to the three Guideline Directed Medical Therapy (GDMT) prescription in 2019–2021 were also captured at discharge. Mortality rate Gender-based comparisons were tested at a 5 % level of significance. Results: The study enrolled 5182 AHF patients, 66.7 % male (M) and 33.3 % female (F). The mean age of the male (M) population was 60.9 ± 13.3, and the female (F) population was 62.8 ± 14 years. Women had a higher prevalence of heart failure with preserved ejection fraction (HFpEF)(F:12.9 %, M:7.3 %;P < 0.0001), hypertension (F: 57.2 %, M: 52.4 %; P = 0.0011) and arrhythmia (F:15.2 %, M:11.7 %;P = 0.0005). Men had a higher incidence of ischemic heart disease (M:76.2 %, F:67.5 %; P < 0.001). Adherence to Renin-angiotensin-aldosterone system (RAAS) inhibitors, Beta-blockers and Mineralocorticoid receptor antagonists (MRAs) was low (18.8 % (M); 15.9 % (F)). The mortality rate, in-hospital mortality was 6.9 % (M:6.5 %, F:7.7 %), up to one-month was 11.8 % (M:11.6 %, F:12.3 %) or one-year was 18.1 % (M:17.8 %, F:18.6 %). Conclusion: Women represent one-third of the population with AHF. Hypertension and HFpEF were more common in women, while ischemic heart disease was more prevalent in men. No gender-based differences were observed in the mortality outcomes. Both groups had low GDMT adherence. This calls for effective strategies to improve HF care in the country