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1. Asymmetry in the magnetic neighbourhood

   https://doi.org/10.1038/s41563-022-01466-0  

   Zhou, Tong; Žutić, Igor (March 2023, Nature Materials)
2. The asymmetry of antimatter in the proton

   https://doi.org/10.1038/s41586-021-03282-z  

   Dove, J.; Kerns, B.; McClellan, R. E.; Miyasaka, S.; Morton, D. H.; Nagai, K.; Prasad, S.; Sanftl, F.; Scott, M. B.; Tadepalli, A. S.; et al (February 2021, Nature)

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3. The Goal Bias in Language and Memory: Explaining the Asymmetry

   Do, Monica L; Papafragou, Anna; Trueswell, John (July 2019, Proceedings of the Annual Conference of the Cognitive Science Society)

   AbstractIn language, speakers are more likely to mention the goals, or endpoints, of motion events than they are to mention sources, or starting points (e.g. Lakusta & Landau, 2005). This phenomenon has been explained in cognitive terms, but may also be affected by discourse-communicative factors: For participants in prior work, sources can be characterized as given, already-known information, while goals are new, relevant information to communicate. We investigate to what extent the goal bias in language (and memory) is affected when the source is or is not in common ground between speaker and hearer, and thus whether it is discourse-given or -new. We find that the goal bias in language is severely diminished when source and goal are discourse-new. We suggest that the goal bias in language can be attributed to discourse-communicative factors in addition to any cognitive goal bias. Discourse factors cannot fully account for the bias in memory. 

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4. Asymmetry and non-dispersivity in the Aharonov-Bohm effect

   https://doi.org/10.1038/s41467-019-09609-9  

   Becker, Maria; Guzzinati, Giulio; Béché, Armand; Verbeeck, Johan; Batelaan, Herman (December 2019, Nature Communications)

   Abstract Decades ago, Aharonov and Bohm showed that electrons are affected by electromagnetic potentials in the absence of forces due to fields. Zeilinger’s theorem describes this absence of classical force in quantum terms as the “dispersionless” nature of the Aharonov-Bohm effect. Shelankov predicted the presence of a quantum “force” for the same Aharonov-Bohm physical system as elucidated by Berry. Here, we report an experiment designed to test Shelankov’s prediction and we provide a theoretical analysis that is intended to elucidate the relation between Shelankov’s prediction and Zeilinger’s theorem. The experiment consists of the Aharonov-Bohm physical system; free electrons pass a magnetized nanorod and far-field electron diffraction is observed. The diffraction pattern is asymmetric confirming one of Shelankov’s predictions and giving indirect experimental evidence for the presence of a quantum “force”. Our theoretical analysis shows that Zeilinger’s theorem and Shelankov’s result are both special cases of one theorem. 

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5. The Sivers asymmetry in hadronic dijet production

   https://doi.org/10.1007/JHEP02(2021)066  

   Kang, Zhong-Bo; Lee, Kyle; Shao, Ding Yu; Terry, John (February 2021, Journal of High Energy Physics)

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   A bstract We study the single spin asymmetry in the back-to-back dijet production in transversely polarized proton-proton collisions. Such an asymmetry is generated by the Sivers functions in the incoming polarized proton. We propose a QCD formalism in terms of the transverse momentum dependent parton distribution functions, which allow us to resum the large logarithms that arise in the perturbative calculations. We make predictions for the Sivers asymmetry of hadronic dijet production at the kinematic region that is relevant to the experiment at the Relativistic Heavy Ion Collider (RHIC). We further compute the spin asymmetries in the selected positive and negative jet charge bins, to separate the contributions from u - and d -quark Sivers functions. We find that both the sign and size of our numerical results are roughly consistent with the preliminary results from the STAR collaboration at the RHIC. 

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