Results 71 to 80 of about 613,869 (322)

$X(1835)$ and the New Resonances $X(2120)$ and $X(2370)$ Observed by the BES Collaboration

open access: yes, 2010
We calculate the decay widths of both the second and the third radial excitations of $\eta$ and $\eta'$ within the framework of $^3P_0$ model. After comparing the theoretical decay widths and decay patterns with the available experimental data of $\eta ...
Ding, Gui-Jun   +2 more
core   +1 more source

Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '

open access: yes, 2021
Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma eta eta eta' to search for the X(2370) and eta(c) in the eta eta eta' invariant mass distribution. No significant signal for the X(2370) is observed, and we set an upper limit for the product branching fraction of B(J/psi -> gamma ...
Ablikim, M.   +10 more
openaire   +1 more source

Search for the $X(2370)$ and observation of $\eta_{c}\to\eta\eta\eta^\prime$ in $J/\psi\to\gamma\eta\eta\eta^{\prime}$

open access: yes, 2020
Comment: arXiv admin note: text overlap with arXiv:1912 ...
BESIII Collaboration   +201 more
openaire   +2 more sources

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

The similarities and differences between separatist terrorism in Northern Ireland and Spain [PDF]

open access: yesNBP: Nauka, bezbednost, policija, 2016
Nowadays more than 3,600 ethnic groups around the world seek to obtain a high degree of autonomy or to separate from the countries in which they are currently situated.
Lutovac Svetislav
doaj  

Determination of the $\eta$-$\eta^\prime$ mixing angle

open access: yes, 2012
We extract $\eta$-$\eta^\prime$ mixing angle and the ratios of decay constants of light pseudoscalar mesons $\pi^0$, $\eta$ and $\eta^\prime$ using recently available BaBar measurements on $\eta$-photon and $\eta^\prime$-photon transition form factors ...
Fu-Guang Cao, R. Kaiser, S. D. Bass
core   +1 more source

Eta, Eta' and eLSM

open access: yes, 2013
We discuss the eta-eta' mixing in the Extended Linear Sigma Model (eLSM).
Parganlija, Denis   +4 more
openaire   +2 more sources

Exploring Microstructure–Physical Property–Corrosion Response Relationship in Intermetallic Compounds of Al‐Cu Bimetallic Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Al‐Cu intermetallic compounds (IMCs) have a significant influence on the properties of Al‐Cu bimetallic interfaces formed in compound casting. This article provides a deeper understanding of microstructure, crystallography, thermal properties, hardness, and corrosion response of Al‐Cu IMCs with the goal of facilitating the optimization of the ...
Alireza Nazarahari   +7 more
wiley   +1 more source

Reseña del libro FERNÁNDEZ SOLDEVILLA, Gaizka; LÓPEZ PÉREZ, Juan Francisco: Allí donde se queman libros. La violencia política contra las librerías (1962-2018)

open access: yesPasado y Memoria
Reseña del libro Fernández Soldevilla, Gaizka; López Pérez, Juan Francisco, Allí donde se queman libros. La violencia política contra las librerías (1962-2018). Madrid, Tecnos, 2023. ISBN 978-84-309-8758-0.
Francisco Rojas Claros
doaj   +1 more source

Numerical Model and Experimental Validation of Composite Metal Foam in Protecting Carbon Steel Against Puncture

open access: yesAdvanced Engineering Materials, EarlyView.
The puncture prevention and energy absorption performance of composite metal foam (CMF) are studied experimentally and numerically for hazardous materials transportation protection. The numerical model implementing air within the CMF (nonhomogeneous model using fluid cavity technique) predicts puncture more accurately compared to the homogeneous CMF ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Home - About - Disclaimer - Privacy