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Статті в журналах з теми "Dihadron"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 29 січня 2023

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1

Filimonov, Kirill. "Dihadron correlations at highpT." Journal of Physics G: Nuclear and Particle Physics 31, no. 4 (March 18, 2005): S513—S519. http://dx.doi.org/10.1088/0954-3899/31/4/062.

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2

Adare, Andrew. "Jet-triggered dihadron correlations." Journal of Physics: Conference Series 270 (January 1, 2011): 012018. http://dx.doi.org/10.1088/1742-6596/270/1/012018.

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3

Drachenberg, J. L. "Exploring nucleon structure and hadronization with dihadrons and hadrons in jets at STAR." Journal of Physics: Conference Series 1643, no. 1 (December 1, 2020): 012188. http://dx.doi.org/10.1088/1742-6596/1643/1/012188.

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Анотація:

Abstract Over the last decade, theoretical and experimental engagement of transverse-spin phenomena has unlocked tantalizing opportunities for new insights into nucleon structure and hadronization. Observables such as hadrons in jets and dihadron correlations from polarized proton collisions provide access to the transversity distribution function at a range of x complementary to existing semi-inclusive deep inelastic scattering (SIDIS) experiments but at a much higher range of Q 2. Moreover, these two observables give access through two different factorization frameworks–transverse-momentum-dependent (TMD) and collinear–enabling a unique path to address questions concerning factorization-breaking and the universality of TMD functions. Data collected by STAR have revealed the first observations of transverse single-spin asymmetries in the azimuthal distributions of dihadron correlations and hadrons within jets from polarized proton collisions at both s = 500 GeV and 200 GeV. The STAR 200 GeV dihadron data have recently been included in global analyses that for the first time include SIDIS, e + e −, and p + p data to extract the transversity distribution. The STAR hadron-in-jet data provide a unique opportunity to illuminate longstanding questions: Do factorization and universality extend to the TMD picture in proton-proton collisions, e.g. through the Collins mechanism? How do TMD functions evolve with changing kinematics? The STAR dihadron and hadron-in-jet data will be presented and discussed in context with the recent global analyses and model calculations.

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4

Radici, Marco, A. Courtoy, and Alessandro Bacchetta. "Dihadron Fragmentation Functions and Transversity." EPJ Web of Conferences 85 (2015): 02025. http://dx.doi.org/10.1051/epjconf/20158502025.

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5

Kotzinian, Aram, Hrayr H. Matevosyan, and Anthony W. Thomas. "Sivers Effect in Dihadron Electroproduction." EPJ Web of Conferences 85 (2015): 02026. http://dx.doi.org/10.1051/epjconf/20158502026.

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6

Courtoy, A. "Phenomenology of Dihadron Fragmentation Function." Journal of Physics: Conference Series 761 (October 2016): 012068. http://dx.doi.org/10.1088/1742-6596/761/1/012068.

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7

Majumder, A. "Dihadron fragmentation functions and highpThadron–hadron correlations." Journal of Physics G: Nuclear and Particle Physics 30, no. 8 (July 20, 2004): S1305—S1308. http://dx.doi.org/10.1088/0954-3899/30/8/114.

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8

Kim, Ji Hyun. "Dihadron Correlations in pp and PbPb Collisions." Progress of Theoretical Physics Supplement 193 (2012): 159–62. http://dx.doi.org/10.1143/ptps.193.159.

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9

Fields, T., and M. D. Corcoran. "Nuclear rescattering effects in massive dihadron production." Physical Review Letters 70, no. 2 (January 11, 1993): 143–45. http://dx.doi.org/10.1103/physrevlett.70.143.

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10

Ceccopieri, Federico A., Marco Radici, and Alessandro Bacchetta. "Evolution equations for extended dihadron fragmentation functions." Physics Letters B 650, no. 1 (June 2007): 81–89. http://dx.doi.org/10.1016/j.physletb.2007.04.065.

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11

Majumder, A. "Dihadron fragmentation: in vacuum and in matter." European Physical Journal C 43, no. 1-4 (April 8, 2005): 259–62. http://dx.doi.org/10.1140/epjc/s2005-02186-0.

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12

Bradamante, Franco. "Extraction of Transversity from COMPASS and Belle Data." International Journal of Modern Physics: Conference Series 40 (January 2016): 1660034. http://dx.doi.org/10.1142/s201019451660034x.

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Анотація:

The valence transversity distributions of the u- and the d-quarks have been extracted point-by-point from single-hadron production and dihadron production data measured in semi-inclusive deep inelastic scattering and in [Formula: see text] annihilation. The transversity distributions are found to be compatible with each other and with previous analyses.

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13

Bai, Ting, Yuan-Yuan Guo, and Bao-Chun Li. "Dihadron Azimuthal Correlations inp-pCollisions atsNN=7 TeV andp-Pb Collisions atsNN=5.02 TeV." Advances in High Energy Physics 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/190714.

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Анотація:

The dihadron azimuthal correlations inp-pcollisions atsNN=7 TeV andp-Pb collisions atsNN=5.02 TeV are investigated in the framework of a multisource thermal model. The model can approximately describe the experimental results measured in the Large Hadron Collider. We find thepxamplitude of the source is magnified and the source translates along the direction.

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14

LI, WEI. "OBSERVATION OF A RIDGE CORRELATION STRUCTURE IN HIGH MULTIPLICITY PROTON–PROTON COLLISIONS: A BRIEF REVIEW." Modern Physics Letters A 27, no. 19 (June 21, 2012): 1230018. http://dx.doi.org/10.1142/s0217732312300182.

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Анотація:

This paper briefly reviews the striking experimental observation of a ridge-like dihadron correlation structure in high multiplicity proton–proton collisions at the Large Hadron Collider (LHC). Recent progress of both experimental and theoretical efforts on understanding the physical origin of the novel effect is reviewed. Outlook on future direction of possible new studies is discussed.

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15

Vechernin, V. V., K. O. Ivanov, and D. I. Neverov. "Two-particle correlation function and dihadron correlation approach." Physics of Atomic Nuclei 79, no. 5 (September 2016): 798–806. http://dx.doi.org/10.1134/s1063778816050161.

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16

Wang, Fuqiang. "Dihadron correlations in d+Au collisions from STAR." Nuclear Physics A 926 (June 2014): 250–57. http://dx.doi.org/10.1016/j.nuclphysa.2014.06.009.

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17

Bradamante, Franco. "Phenomenological Extraction of Transversity from COMPASS SIDIS and Belle e+e- Data." International Journal of Modern Physics: Conference Series 37 (January 2015): 1560062. http://dx.doi.org/10.1142/s2010194515600629.

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Анотація:

The valence transversity distributions of the u- and the d-quarks have been extracted point-by-point from single-hadron production and dihadron production data measured in semi-inclusive deep inelastic scattering and in e+e annihilation. The extraction is based on some simple assumptions and does not require any parametrization. The transversity distributions are found to be compatible with each other and with previous analyses.

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18

Yang, Dong-Jing, Fu-Jiun Jiang, Chian-De Li, Chung-Wen Kao, and Seung-il Nam. "Unpolarized dihadron fragmentation functions in nonlocal chiral quark model." Chinese Journal of Physics 71 (June 2021): 248–59. http://dx.doi.org/10.1016/j.cjph.2021.02.011.

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19

Jia, Jiangyong. "Understanding jet quenching and medium response with dihadron correlation." Journal of Physics G: Nuclear and Particle Physics 35, no. 10 (September 17, 2008): 104033. http://dx.doi.org/10.1088/0954-3899/35/10/104033.

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20

Perry, J. "Approximation of jet axis in rapidity separated dihadron correlations." Physics of Particles and Nuclei 45, no. 1 (January 2014): 108–9. http://dx.doi.org/10.1134/s1063779614010791.

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21

Lappi, T., and H. Mäntysaari. "Forward dihadron correlations in the Gaussian approximation of JIMWLK." Nuclear Physics A 910-911 (August 2013): 498–501. http://dx.doi.org/10.1016/j.nuclphysa.2012.12.057.

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22

Kaplan, D. M., R. Guo, C. N. Brown, W. E. Cooper, M. J. Wang, T. A. Carey, M. J. Leitch, et al. "Test of scaling of the massive-dihadron cross section." Physical Review D 41, no. 7 (April 1, 1990): 2334–38. http://dx.doi.org/10.1103/physrevd.41.2334.

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23

Stasto, Anna, Shu-Yi Wei, Bo-Wen Xiao, and Feng Yuan. "On the dihadron angular correlations in forward pA collisions." Physics Letters B 784 (September 2018): 301–6. http://dx.doi.org/10.1016/j.physletb.2018.08.011.

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24

Courtoy, A. "The Tensor and the Scalar Charges of the Nucleon from Hadron Phenomenology." EPJ Web of Conferences 172 (2018): 03007. http://dx.doi.org/10.1051/epjconf/201817203007.

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Анотація:

We discuss the impact of the determination of the nucleon tensor charge on searches for physics Beyond the Standard Model. We also comment on the future extraction of the subleading-twist PDF e(x) from Jefferson Lab soon-to-be-released Beam Spin Asymmetry data as well as from the expected data of CLAS12 and SoLID, as the latter is related to the scalar charge. These analyses are possible through the phenomenology of Dihadron Fragmentation Functions related processes, which we report on here as well.

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25

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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Анотація:

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 physical process.

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26

Zhang, G. X., Y. C. Qian, and B. C. Li. "Dihadron Azimuthal Correlations in 200 GeV Au-Au and 2.76 TeV Pb-Pb Collisions." Advances in High Energy Physics 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/870614.

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Анотація:

In a multisource thermal model, we detailedly show dihadron azimuthal correlations for 20–40% and 50–80% in Au-Au collisions atsNN=200 GeV and over a centrality range from 10–15% to 70–80% in Pb-Pb collisions atsNN=2.76 TeV. The model can approximately describe the azimuthal correlations of particles produced in the collisions. Thepxamplitude of the corresponding source is magnified, and the source translates along the direction. The factorαx, in most cases, increases with the increase of the centrality in Pb-Pb collisions atsNN=2.76 TeV.

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27

Matevosyan, Hrayr H., Anthony W. Thomas, and Wolfgang Bentz. "The Effect of Vector Meson Decays on Dihadron Fragmentation Functions." EPJ Web of Conferences 66 (2014): 06014. http://dx.doi.org/10.1051/epjconf/20146606014.

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28

Courtoy, A., A. Bacchetta, and M. Radici. "Dihadron fragmentation functions and their relevance for transverse spin studies." Journal of Physics: Conference Series 295 (May 1, 2011): 012053. http://dx.doi.org/10.1088/1742-6596/295/1/012053.

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29

Kaplan, D. M., R. Guo, C. N. Brown, W. E. Cooper, M. J. Wang, T. A. Carey, M. J. Leitch, et al. "Erratum: Test of scaling of the massive-dihadron cross section." Physical Review D 43, no. 3 (February 1, 1991): 954. http://dx.doi.org/10.1103/physrevd.43.954.

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30

Chen, Lin, Guang-You Qin, Shu-Yi Wei, Bo-Wen Xiao, and Han-Zhong Zhang. "Probing transverse momentum broadening via dihadron and hadron-jet angular decorrelations." Nuclear and Particle Physics Proceedings 289-290 (August 2017): 350–53. http://dx.doi.org/10.1016/j.nuclphysbps.2017.05.081.

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31

Ke-Feng, Xin, Zhang Song, Ma Yu-Gang, Cai Xiang-Zhou, Ma Guo-Liang, and Zhong Chen. "Properties of Dihadron Correlations for p+p Collisions at = 200 GeV." Chinese Physics Letters 26, no. 6 (June 2009): 062503. http://dx.doi.org/10.1088/0256-307x/26/6/062503.

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32

Castilho, Wagner M., and Wei-Liang Qian. "Centrality and transverse momentum dependence of dihadron correlations in a hydrodynamic model." Nuclear Physics A 974 (June 2018): 35–44. http://dx.doi.org/10.1016/j.nuclphysa.2018.03.008.

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33

Yang, Weihua. "Azimuthal asymmetries from 𝜃 vacuum". International Journal of Modern Physics A 34, № 18 (28 червня 2019): 1950095. http://dx.doi.org/10.1142/s0217751x19500957.

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Анотація:

We present the complete azimuthal asymmetries at leading twist in terms of fragmentation functions in dihadron production semi-inclusive electron–positron annihilation process. When the nontrivial [Formula: see text] vacuum is taken into consideration, the parity symmetry of quantum chromodynamics is violated. As a consequence of the [Formula: see text] [Formula: see text]-odd effects, [Formula: see text]-odd fragmentation functions would contribute to the azimuthal asymmetries. Azimuthal asymmetry coming from two interference terms with opposite signs vanishes when sum over many events. This symmetry only survives on the event-by-event basis. Azimuthal asymmetry coming from two interference terms with same signs survives and can be measured to extract the [Formula: see text]-odd fragmentation functions. We also present the hadron polarizations.

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34

Zhang, Hanzhong, J. F. Owens, Enke Wang, and Xin-Nian Wang. "A NLO analysis on fragility of dihadron tomography in high energy AA collisions." Journal of Physics G: Nuclear and Particle Physics 34, no. 8 (July 16, 2007): S801—S804. http://dx.doi.org/10.1088/0954-3899/34/8/s99.

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35

Conway, Rylan. "Very High-pTTriggered Dihadron Correlations in PbPb Collisions at 2.76 TeV with CMS." Journal of Physics: Conference Series 458 (August 23, 2013): 012006. http://dx.doi.org/10.1088/1742-6596/458/1/012006.

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36

Lappi, T., and H. Mäntysaari. "Forward dihadron correlations in deuteron–gold collisions with a Gaussian approximation of JIMWLK." Nuclear Physics A 908 (June 2013): 51–72. http://dx.doi.org/10.1016/j.nuclphysa.2013.03.017.

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37

Zhang, S., Y. H. Zhu, G. L. Ma, Y. G. Ma, X. Z. Cai, J. H. Chen, and C. Zhong. "System-size scan of dihadron azimuthal correlations in ultra-relativistic heavy ion collisions." Nuclear Physics A 860, no. 1 (June 2011): 76–83. http://dx.doi.org/10.1016/j.nuclphysa.2011.05.008.

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38

Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, et al. "Long-range pseudorapidity dihadron correlations in d+ Au collisions at sNN=200 GeV." Physics Letters B 747 (July 2015): 265–71. http://dx.doi.org/10.1016/j.physletb.2015.05.075.

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39

Brown, C. N., W. E. Cooper, C. S. Mishra, D. M. Kaplan, R. S. Preston, V. Tanikella, L. D. Isenhower, et al. "Nuclear dependence of single-hadron and dihadron production inp-Ainteractions at √s=38.8 GeV." Physical Review C 54, no. 6 (December 1, 1996): 3195–98. http://dx.doi.org/10.1103/physrevc.54.3195.

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40

Callner, Jeremy. "Dihadron correlations in Pb–Pb collisions at \sqrt{s_{NN}} = 2.76 TeV with CMS." Journal of Physics G: Nuclear and Particle Physics 38, no. 12 (November 10, 2011): 124092. http://dx.doi.org/10.1088/0954-3899/38/12/124092.

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41

Ma, Guo-Liang, та Xin-Nian Wang. "Initial fluctuations and dihadron and γ-hadron correlations in high-energy heavy-ion collisions". Journal of Physics G: Nuclear and Particle Physics 38, № 12 (10 листопада 2011): 124156. http://dx.doi.org/10.1088/0954-3899/38/12/124156.

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42

Conway, Rylan. "Very High-pT Triggered Dihadron Correlations in PbPb Collisions at 2.76 TeV with CMS." Nuclear Physics A 904-905 (May 2013): 451c—454c. http://dx.doi.org/10.1016/j.nuclphysa.2013.02.046.

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43

Zheng, Liang, E. C. Aschenauer, J. H. Lee, Bo-Wen Xiao, and Zhong-Bao Yin. "Measuring Gluon Sivers Function at a Future Electron-Ion Collider." International Journal of Modern Physics: Conference Series 46 (January 2018): 1860021. http://dx.doi.org/10.1142/s2010194518600212.

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Анотація:

In this work, we present a systematic study on the feasibility of probing the largely unexplored gluon Sivers function (GSF) based on the open charm production, charged dihadron and dijet method at a future high energy, high luminosity Electron-Ion Collider (EIC). Sivers function describes the anisotropy of parton distributions inside a transversely polarized nucleon in the momentum space and provides us a complete picture of the 2+1D structure of the nucleons. It is proposed that the GSF can be studied through the single spin asymmetry (SSA) measurement in the photon-gluon fusion channel with electron proton collisions at the EIC. Using a well tuned Monte Carlo model for deep inelastic scatterings, we estimate the possible constraints of the gluon Sivers effect one can draw from the future EIC data. Comparisons of all the possible measurements further illustrate that the dijet method is the most promising way to demonstrate the presence of GSF and pin down its evolution effect.

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44

Agakishiev, H., M. M. Aggarwal, Z. Ahammed, A. V. Alakhverdyants, I. Alekseev, J. Alford, B. D. Anderson, et al. "Measurements of dihadron correlations relative to the event plane in Au+Au collisions at GeV *." Chinese Physics C 45, no. 4 (April 1, 2021): 044002. http://dx.doi.org/10.1088/1674-1137/abdf3f.

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45

Wang, Fuqiang. "Dihadron Correlations Relative to the Event Plane in 200 GeV Au+Au Collisions from STAR." Journal of Physics: Conference Series 458 (August 23, 2013): 012029. http://dx.doi.org/10.1088/1742-6596/458/1/012029.

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46

Dilks, Christopher. "Multidimensional partial wave analysis of SIDIS dihadron beam spin asymmetries at CLAS12." SciPost Physics Proceedings, no. 8 (July 14, 2022). http://dx.doi.org/10.21468/scipostphysproc.8.152.

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Анотація:

Dihadron beam spin asymmetries provide a wide range of insights into nucleon structure and hadronization. Recent measurements at CLAS12 provide the first empirical evidence of nonzero G_1^\perpG1⊥, the parton helicity-dependent dihadron fragmentation function (DiFF) encoding spin-momentum correlations in hadronization. These measurements also allow for a point-by-point extraction of the subleading-twist PDF e(x)e(x) in a collinear framework. We observe different behavior of the asymmetries in different invariant mass regions, motivating a fully multidimensional study. The DiFFs also expand in terms of partial waves, each corresponding to the interference of dihadrons of particular polarizations. Altogether a fully multidimensional partial wave analysis is needed, and this presentation will summarize the efforts and results obtained thus far.

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47

Bacchetta, Alessandro, and Marco Radici. "Modeling dihadron fragmentation functions." Physical Review D 74, no. 11 (December 13, 2006). http://dx.doi.org/10.1103/physrevd.74.114007.

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48

Yang, Weihua. "Hadron pair production in semi-inclusive electron positron annihilation process at twist-4." European Physical Journal C 82, no. 8 (August 24, 2022). http://dx.doi.org/10.1140/epjc/s10052-022-10698-y.

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Анотація:

AbstractFragmentation functions are important quantities in describing the hadronization process in high energy reactions. They can induce various azimuthal modulations which can be measured to reveal correlations between transverse momenta and polarizations. Without introducing initial state uncertainties, electron positron annihilation process is known as an ideal process to investigate the fragmentation functions. In this paper, therefore, we calculate the hadron pair production in the semi-inclusive electron positron annihilation process $$e^+ + e^- \rightarrow h_1+h_2 + {\bar{q}} +X$$ e + + e - → h 1 + h 2 + q ¯ + X at twist-4 to study dihadron fragmentation functions. Here $${\bar{q}}$$ q ¯ denotes an antiquark that corresponds to a jet of hadrons in experiments. Together with single hadron fragmentation functions, dihadron fragmentation functions can provide additional ways to extract nucleon parton distribution functions from the semi-inclusive deeply inelastic scattering experiments with two detected final state hadrons. We calculate the differential cross section of the hadron pair production semi-inclusive electron positron annihilation process at twist-4 level. The calculation is carried out by using the collinear expansion method. We also calculate azimuthal asymmetries in terms of dihadron fragmentation functions. Contributions from four-quark correlator are also taken into account. Both the electromagnetic and weak interactions are considered in this paper.

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49

Courtoy, Aurore. "Transversity through Dihadron: a constrained fit." SciPost Physics Proceedings, no. 8 (July 12, 2022). http://dx.doi.org/10.21468/scipostphysproc.8.049.

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Анотація:

We present a study of the valence transversity PDF obtained through a constrained fit. The effects of the constraints on the uncertainties of the PDF are explored. We show that the resulting isovector tensor charge is largely undetermined and, hence, compatible with all lattice evaluations.

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Majumder, A., and Xin-Nian Wang. "Dihadron fragmentation function and its evolution." Physical Review D 70, no. 1 (July 27, 2004). http://dx.doi.org/10.1103/physrevd.70.014007.

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