β-decay and non-conservation of parity

Berestetsky, V.B.; Ioffe, B.L.; Rudik, A. P.; Ter-Martirosyan, K.A.

doi:10.1016/0029-5582(58)90050-6

Cited by 21 publications

(4 citation statements)

References 7 publications

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“…The general form of this vector is given by Eq. (19) and its manifestly covariant representation by Eqs. (26)− (29).…”

Section: Discussionmentioning

confidence: 99%

“…These three functions are fixed by the condition pw = 0 and by the form of the spin vector in the quark rest frame (19). We have proved [6]:…”

Section: Transversity 2014mentioning

confidence: 99%

“…2, which means the quarks are considered effectively free only during a short time interval necessary for the photon absorption. The spin contribution S of each many-quark state to the proton spin is defined by the corresponding matrix element of the state (14) or equivalently by the spin vector (19). The corresponding SFs can be compared with our previous results [9][10][11].…”

Section: Proton Spin Structurementioning

confidence: 99%

“…The solutions of free Dirac equation represented by eigenstates of the total angular momentum (AM) with quantum numbers j, j z are SSH [19][20][21], which in the momentum representation reads:…”

Section: Eigenstates Of Angular Momentummentioning

confidence: 99%

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On the role of quark orbital angular momentum in the proton spin

Závada

2015

EPJ Web of Conferences

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Abstract. We study the covariant version of the quark-parton model, in which the general rules of the angular momentum composition are accurately taken into account. We demonstrate how these rules affect the relativistic interplay between the quark spins and orbital angular momenta, which collectively contribute to the proton spin. The spin structure functions g 1 and g 2 corresponding to the many-quark state J = 1/2 are studied and it is shown they satisfy constraints and relations well compatible with the available experimental data including proton spin content ΔΣ 1/3. The suggested Lorentz invariant 3D approach for calculation of the structure functions is compared with the approach based on the conventional collinear parton model.

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“…The general form of this vector is given by Eq. (19) and its manifestly covariant representation by Eqs. (26)− (29).…”

Section: Discussionmentioning

confidence: 99%

“…These three functions are fixed by the condition pw = 0 and by the form of the spin vector in the quark rest frame (19). We have proved [6]:…”

Section: Transversity 2014mentioning

confidence: 99%