کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1856116 1529865 2014 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Supertwistors and massive particles
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Supertwistors and massive particles
چکیده انگلیسی


• Spin-shell constraints are related to Poincaré Casimirs.
• Twistor form of 4D spinning particle for spin N/2N/2.
• Twistor proof of scalar/antisymmetric tensor equivalence for 4D spin 0.
• Twistor form of 3D particle with arbitrary spin.
• Proof of equivalence of N=1N=1 and N=2N=2 BPS massive 4D superparticles.

In the (super)twistor formulation of massless (super)particle mechanics, the mass-shell constraint is replaced by a “spin-shell” constraint from which the spin content can be read off. We extend this formalism to massive (super)particles (with NN-extended space–time supersymmetry) in three and four space–time dimensions, explaining how the spin-shell constraints are related to spin, and we use it to prove equivalence of the massive N=1N=1 and BPS-saturated N=2N=2 superparticle actions. We also find the supertwistor form of the action for “spinning particles” with NN-extended worldline supersymmetry, massless in four dimensions and massive in three dimensions, and we show how this simplifies special features of the N=2N=2 case.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 346, July 2014, Pages 66–90
نویسندگان
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