Academic literature on the topic 'Collins asymmetries'

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Journal articles on the topic "Collins asymmetries"

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Efremov, A. V., K. Goeke, and P. Schweitzer. "Sivers and Collins single spin asymmetries." European Physical Journal Special Topics 162, no. 1 (2008): 1–11. http://dx.doi.org/10.1140/epjst/e2008-00768-9.

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BOER, DANIËL. "ASPECTS OF TMD EVOLUTION OF AZIMUTHAL ASYMMETRIES." International Journal of Modern Physics: Conference Series 25 (January 2014): 1460004. http://dx.doi.org/10.1142/s2010194514600040.

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In this contribution TMD evolution of azimuthal asymmetries, in particular of the Sivers and double Collins asymmetries, is addressed. A comparison of the scale dependence is made between asymmetries described with TMD factorization at low transverse momentum and those described with collinear factorization at high transverse momentum. Finally, the advantages of Bessel weighting are discussed: convergence of transverse momentum integrals, suppression of large transverse momentum contributions, and well-defined lattice QCD evaluations of Bessel-weighted TMDs including proper gauge links.
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Efremov, A. V., K. Goeke, and P. Schweitzer. "Azimuthal asymmetries in SIDIS and Collins analysing power." Nuclear Physics A 711, no. 1-4 (2002): 84–88. http://dx.doi.org/10.1016/s0375-9474(02)01199-5.

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Kang, Zhong-Bo, Alexei Prokudin, Felix Ringer, and Feng Yuan. "Collins azimuthal asymmetries of hadron production inside jets." Physics Letters B 774 (November 2017): 635–42. http://dx.doi.org/10.1016/j.physletb.2017.10.031.

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Guan, Yinghui. "Measurement of Collins Asymmetries in Inclusive Production of Charged Pion Pairs at BESIII." International Journal of Modern Physics: Conference Series 40 (January 2016): 1660033. http://dx.doi.org/10.1142/s2010194516600338.

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We present the preliminary results of the measurement of the azimuthal asymmetries of two charged pions in the inclusive process [Formula: see text] in the BESIII experiment. These asymmetries are attributed to the so-called Collins fragmentation function, which depict the behavior of a hadron produced from a transversely polarized quark. This spin-dependent function is an important input for the global analysis of extracting the transversity inside the nucleon. In addition, by comparison with the measured asymmetries at Belle, this measurement provides the first data to explore the [Formula:
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Adkins, J. Kevin, and James L. Drachenberg. "Azimuthal Single-Spin Asymmetries of Charged Pions in Jets in s = 200 GeV p↑p Collisions at STAR." International Journal of Modern Physics: Conference Series 40 (January 2016): 1660040. http://dx.doi.org/10.1142/s2010194516600405.

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Single spin asymmetry measurements ([Formula: see text]) of the azimuthal distribution of charged pions inside jets produced in transversely polarized proton collisions are sensitive to the transversity distribution and the Collins fragmentation function. The STAR Detector at the Relativistic Heavy Ion Collider is well suited for these types of measurements as it is capable of full jet reconstruction and charged pion identification in the mid-rapidity region ([Formula: see text][Formula: see text][Formula: see text][Formula: see text]). We report here the first observation of Collins [Formula:
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Venugopal, G. "Collins and Sivers asymmetries on the deuteron from COMPASS." European Physical Journal Special Topics 162, no. 1 (2008): 97–101. http://dx.doi.org/10.1140/epjst/e2008-00781-0.

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Webb, R. "First measurements of Collins and Sivers asymmetries at COMPASS." Nuclear Physics A 755 (June 2005): 329–32. http://dx.doi.org/10.1016/j.nuclphysa.2005.03.033.

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Bradamante, Franco. "Work on the Interplay Among h+, h− and Hadron Pair Transverse Spin Asymmetries in SIDIS." International Journal of Modern Physics: Conference Series 40 (January 2016): 1660039. http://dx.doi.org/10.1142/s2010194516600399.

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In the fragmentation of a transversely polarized quark a left-right asymmetry, the Collins asymmetry, is expected for each hadron produced in the process [Formula: see text]. Similarly, an asymmetry is also expected for the hadron pair, the dihadron asymmetry. Both asymmetries have been measured to be different from zero on transversely polarised proton targets and have allowed for first extractions of the transversity distributions. From the high statistics COMPASS data we have further investigated these asymmetries getting strong indications that the two mechanisms are driven by a common phy
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Adolph, C., M. G. Alekseev, V. Yu Alexakhin та ін. "I – Experimental investigation of transverse spin asymmetries in μ-p SIDIS processes: Collins asymmetries". Physics Letters B 717, № 4-5 (2012): 376–82. http://dx.doi.org/10.1016/j.physletb.2012.09.055.

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Dissertations / Theses on the topic "Collins asymmetries"

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GARZIA, Isabella. "Measurement of Collins asymmetries in inclusive production of pion pairs at BABAR." Doctoral thesis, Università degli studi di Ferrara, 2012. http://hdl.handle.net/11392/2389413.

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Transversity Distribution, which describes the quark transverse polarization inside a transversely polarized nucleon, is the last leading-twist missing piece of the QCD description of the partonic structure of the nucleon. Transversity can be extracted from Semi-Inclusive Deep Inelastic Scattering (SIDIS) data, where, due to its chiralodd nature, it couples to a new, unknown fragmentation function, called Collins function. Independent information on the Collins function can be obtained in e+e- -> qq annihilation processes, where q = u, d, s. In the cross section formula, the Collins e
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Adkins, James Kevin. "STUDYING TRANSVERSE MOMENTUM DEPENDENT DISTRIBUTIONS IN POLARIZED PROTON COLLISIONS VIA AZIMUTHAL SINGLE SPIN ASYMMETRIES OF CHARGED PIONS IN JETS." UKnowledge, 2017. http://uknowledge.uky.edu/physastron_etds/47.

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A complete, fundamental understanding of the proton must include knowledge of the underlying spin structure. The transversity distribution, h1(x), which describes the transverse spin structure of quarks inside of a transversely polarized proton, is only accessible through channels that couple h1(x) to another chiral odd distribution, such as the Collins fragmentation function (ΔN Dπ/q↑(z,jT)). Significant Collins asymmetries of charged pions have been observed in semi-inclusive deep inelastic scattering (SIDIS) data. These SIDIS asymmetries combined with e+e- process asymmetries have allowed f
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Elia, Carmine. "Measurement of two-hadron transverse spinasymmetries in SIDIS at COMPASS." Doctoral thesis, Università degli studi di Trieste, 2012. http://hdl.handle.net/10077/7425.

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2010/2011<br>The transversity distribution function can be studied in inclusive one- and two-hadrons production in DIS off a transversely polarized target. The measurement of the spin asymmetries in the azimuthal distribution of the one- or two-hadrons, and of the Collins or di-hadron fragmentation functions, allows to access the transversity distribution function. In this thesis the measurements of the one- and two-hadron transverse spin asymmetries performed by the COMPASS experiment is discussed. Finally the first extraction of the transversity PDF from two-hadron asymmetries is perfomed
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Budzik, Michal. "Fracture in asymmetric bonded joints." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14041/document.

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Des tests de fissuration ont été réalisés sur des joints collés asymétriques. Ces assemblages asymétriques sont constitués de deux substrats de nature et/ou d’épaisseur différentes liés par un adhésif. Cette géométrie d’éprouvette semble peu utilisée pour effectuer des essais de fissuration. Elles présentent certains inconvénients et de ce fait n’ont fait l’objet d’aucune normalisation. Dans le cadre cette géométrie d’éprouvette d’essai a été néanmoins été retenue et utilisée dans trois configurations différentes pour la caractérisation mécanique des assemblages collés. Des protocoles d’essai
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Mahmood, Talat. "The mechanics of asymmetric particle release during filter backwashing and migration of colloids." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/19159.

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Conference papers on the topic "Collins asymmetries"

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Kerbizi, Albi, Leif Lonnblad, and Anna Martin. "Monte Carlo results on the Collins asymmetries in $e^+e^-$ annihilation." In 7th International Workshop on “Transverse phenomena in hard processes and the transverse structure of the proton. Sissa Medialab, 2024. https://doi.org/10.22323/1.477.0007.

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Efremov, A. V. "Collins Analyzing Power and Azimuthal Asymmetries." In SPIN 2002: 15th International Spin Physics Symposium and Workshop on Polarized Electron Sources and Polarimeters. AIP, 2003. http://dx.doi.org/10.1063/1.1607178.

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Bressan, Andrea. "Collins and Sivers Asymmetries from COMPASS." In 15th International Workshop on Deep-Inelastic Scattering and Related Subjects. Science Wise Publishing, 2007. http://dx.doi.org/10.3360/dis.2007.92.

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Bressan, Andrea. "COMPASS Results on Collins and Sivers Asymmetries." In Proceedings of the XVII International Workshop on Deep-Inelastic Scattering and Related Topics. Science Wise Publishing, 2009. http://dx.doi.org/10.3360/dis.2009.214.

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Martin, Anna. "COMPASS results on the Collins and Sivers asymmetries." In XXI International Workshop on Deep-Inelastic Scattering and Related Subjects. Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.191.0230.

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Pappalardo, L. L. "MEASUREMENT OF COLLINS AND SIVERS ASYMMETRIES AT HERMES." In Proceedings of the Second Workshop on Transverse Polarization Phenomena in Hard Processes. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814277785_0004.

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PAGANO, P. "MEASUREMENTS OF COLLINS AND SIVERS ASYMMETRIES AT COMPASS." In Proceedings of the 16th International Spin Physics Symposium and Workshop on Polarized Electron Sources and Polarimeters. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812701909_0067.

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Garzia, Isabella. "Studies of Collins asymmetries with the BaBar detector." In XXIII International Workshop on Deep-Inelastic Scattering. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.247.0195.

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Bressan, Andrea. "Collins and Sivers asymmetries on the deuteron from COMPASS." In PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei. AIP, 2006. http://dx.doi.org/10.1063/1.2220282.

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Sun, Peng. "QCD Evolution for the Collins Asymmetries in Hard Process." In QCD Evolution 2015. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.249.0031.

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