DSpace Collection:http://hdl.handle.net/11390/10635952022-05-19T10:05:22Z2022-05-19T10:05:22ZHigh-precision measurement of the W boson mass with the CDF II detectorhttp://hdl.handle.net/11390/12256962022-05-17T11:51:26Z2022-01-01T00:00:00ZTitle: High-precision measurement of the W boson mass with the CDF II detector
Abstract: The mass of the W boson, a mediator of the weak force between elementary particles, is tightly constrained by the symmetries of the standard model of particle physics. The Higgs boson was the last missing component of the model. After observation of the Higgs boson, a measurement of the W boson mass provides a stringent test of the model. We measure the W boson mass, MW, using data corresponding to 8.8 inverse femtobarns of integrated luminosity collected in proton-antiproton collisions at a 1.96 tera-electron volt center-of-mass energy with the CDF II detector at the Fermilab Tevatron collider. A sample of approximately 4 million W boson candidates is used to obtain [Formula: see text], the precision of which exceeds that of all previous measurements combined (stat, statistical uncertainty; syst, systematic uncertainty; MeV, mega-electron volts; c, speed of light in a vacuum). This measurement is in significant tension with the standard model expectation.2022-01-01T00:00:00ZThe Rediscovery of Amioun, Ancient Ammiya. The Archaeology of a Regional
Capital in the Inner Plain of Koura (Lebanon)http://hdl.handle.net/11390/12243362022-05-13T10:43:14Z2021-01-01T00:00:00ZTitle: The Rediscovery of Amioun, Ancient Ammiya. The Archaeology of a Regional
Capital in the Inner Plain of Koura (Lebanon)
Abstract: In 2017 the joint Italian-Lebanese mission of the Northern Lebanon Project (NoLeP) started a systematic
investigation in the district of Koura. The aim of the project is the reconstruction via intensive and extensive survey
investigations of the ancient landscape of the region with particular reference to the ancient settlements located in the
inner plain. In particular, one of the main initial targets has been the investigation of the ancient city of Ammiya that
previous studies identified provisionally as the modern city of Amioun on the basis of textual data. This article provides
a detailed account of the results achieved by the joint mission during the survey activity: in particular, it furnishes for
the first time a solid archaeological basis in support of a definitive correlation between the modern city of Amioun and
ancient Ammiya. Moreover, it provides a first look at the origin, rise and development of the ancient settlement in this
site of fundamental importance in the inner area of Koura. This in turn permits us to illuminate the socio-economic
dynamics characterising this important region of Northern Lebanon.2021-01-01T00:00:00ZThe Jordan and Frobenius pairs of the inversehttp://hdl.handle.net/11390/12247302022-05-13T10:04:34Z9999-01-01T00:00:00ZTitle: The Jordan and Frobenius pairs of the inverse
Abstract: Given a matrix $Ainmathbb{C}^{n imes n}$ there exists a nonsingular matrix $V$ such that $V^{-1}AV=J$, where $J$ is a very sparse matrix with a diagonal block structure,
known as Jordan canonical form (JCF) of $A$. Assume that $A$ is nonsingular and that $V$ and $J$ are given. How to obtain $widehat{V}$ and $widehat{J}$
such that $widehat{V}^{-1}A^{-1}widehat{V}=widehat{J}$ and $widehat{J}$ is the JCF of $A^{-1}$? Curiously, the answer involves the Pascal matrix. For the Frobenius canonical form (FCF), where blocks are companion matrices, the analogous question has a very simple answer. Jordan blocks and companion are non-derogatory lower Hessenberg matrices. The answers to the two questions will be obtained by solving two linear matrix equations involving these matrices.9999-01-01T00:00:00Z12-The Early Islamic Period (in Recent archaeological discoveries at Karkemish, ed. N. Marchetti)http://hdl.handle.net/11390/12246402022-05-13T09:23:28Z2020-01-01T00:00:00ZTitle: 12-The Early Islamic Period (in Recent archaeological discoveries at Karkemish, ed. N. Marchetti)2020-01-01T00:00:00Z