The Quarks as Dirac States
As fermions, the quarks and leptons of the first family could be described as pairs of solutions of the Dirac equation (Dirac states). The color and electric charges are associated with the symmetry operations bringing the Dirac states into pairs. The obtained quark model is similar to that given by Han – Nambu, where the electric charges of the d and u quarks assume integer values. The quark s may have an inner structure formed from quarks of the first family, s = uud and s = uud.
A semi-classical picture of the electron spin
Abstract By postulating that the spin angular frequency of the electron is related to its rest energy by ωo = moc2/ℏ, we arrive at a value for radius of the electron, equal to its Compton wavelength λc = ℏ/moc. An assumed spherically symmetrical mass and charge density distribution of the form ϱm ∝ ϱe ∝ r3 then results in a spin angular momentum of S = 1 2 ℏ and a magnetogyric ratio of μ/S ⋍ 1.055 e/mo.
The politics of becoming bodies: Sex, gender and intersubjectivity in motion
Abstract This paper presents readers with one (research) story about (sexed and gendered) bodies not as objects with inherent boundaries and properties but as material-discursive phenomena. In telling such a story I examine the role that the screendance, Becoming Bodies , has played in knowledge production and argue for a less ontologically ‘old fashioned’ view of what counts as ‘evidence’. Throughout the paper I draw from a range of feminisms: biological, phenomenological, poststructural, psychoanalytical, and post humanist and performative scholarship of sex and gender. These discourses contest nature/nurture, male/female, body/mind dualisms, and take the political and ethical view that bodies are not neutral; that sex and gender, being a woman or a man are both socially and biologically constructed forms of identity (similar to class and race) that are acquired and learned through socio-cultural regimes of discipline and intersubjective bodily practices. Building on this dynamic and developmental bio-psycho-social view I discuss selected aspects of interview data: (1) the material-discursive tensions and contradictions of sexing and gendering bodies and (2) troubling the intersubjective implications of this for clinical practices.