Positivity constraints on interacting pseudo-linear spin-2 fields
نویسندگان
چکیده
منابع مشابه
Positivity constraints for spin-dependent Parton distributions.
We derive new positivity constraints on the spin-dependent structure functions of the nucleon. These model independent results reduce considerably their domain of allowed values, in particular for the chiral-odd parton distribution h1(x). PACS Numbers : 12.90+b, 12.40.Aa, 13.88+e Key-Words : Positivity, polarized quark distributions. Number of figures : 3 September 1994 CPT-94/P.3059 anonymous ...
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Xavier Artru,1, ∗ Jean-Marc Richard,2, † and Jacques Soffer3, ‡ Institut de Physique Nucléaire de Lyon, CNRS-IN2P3–Université Lyon-I 4, rue Enrico Fermi, 69622 Villeurbanne cedex, France Laboratoire de Physique Subatomique et Cosmologie Grenoble Universités–CNRS-IN2P3-Ingénierie 53, avenue des Martyrs, F–38026 Grenoble Cedex, France Centre de Physique Théorique CNRS, Luminy Case 907, F-13288 Ma...
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Linear ?-minimax estimators for a bounded normal mean have been explored by Vidakovic and DasGupta (1992). They have found that the risk of linear ?-minimax rules is close to the risk of exact ?-minimax rules. However, the linear rules are not very natural when one estimates bounded parameters. In this paper we explore some modiications of linear rules with two goals in mind: (i) addressing the...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2020
ISSN: 1029-8479
DOI: 10.1007/jhep07(2020)121