Acta Physica Polonica B (Jagiellonian University)

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2019-07-05
08:25
Analysis of the Vector and Axialvector $QQ\bar {Q}\bar {Q}$ Tetraquark States with QCD Sum Rules / Zhi-Gang Wang ; Zun-Yan Di
In this article, we construct the axialvector-diquark--axialvector-antidi-quark type currents to study both the vector and axialvector $QQ\bar{Q}\bar{Q}$ tetra-quark states with the QCD sum rules, and obtain the masses $M_{Y(cc\bar{c}\bar{c},1^{+-})} =6.05\pm0.08\,\rm{GeV}$, $M_{Y(cc\bar{c}\bar{c},1^{--})} =6.11\pm0.08\,\rm{GeV}$, $M_{Y(bb\bar{b}\bar{b},1^{+-})} =18.84\pm0.09\,\rm{GeV}$, $M_{Y(bb\bar{b}\bar{b},1^{--})} =18.89\pm0.09\,\rm{GeV}$. [...]
Published in Acta Physica Polonica B 50 (2019) 1335-1348 10.5506/APhysPolB.50.1335
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2019-07-05
08:25
QED and Fundamental Symmetries in Positronium Decays / Bass, Steven D.
We discuss positronium decays with emphasis on tests of fundamental symmetries and the constraints from measurements of other precision observables involving electrons and photons..
Published in Acta Physica Polonica B 50 (2019) 1319-1333 10.5506/APhysPolB.50.1319
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2019-07-05
08:25
The Feasibility Study of the Long-baseline Neutrino Oscillation Experiment at the SUNLAB Laboratory in Poland / Harańczyk, Małgorzata
The feasibility study of an underground laboratory in the Polkowice-Sieroszowice mine in Poland (SUNLAB) as a host of a far detector in a long-baseline neutrino oscillation experiment was performed. [...]
Published in Acta Physica Polonica B 50 (2019) 1303-1317 10.5506/APhysPolB.50.1303
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2019-05-29
12:03
The Unexplored Landscape of Two-body Resonances / Craig, Nathaniel ; Draper, Patrick ; Kong, Kyoungchul ; Ng, Yvonne ; et al
We propose a strategy for searching for theoretically-unanticipated new physics which avoids a large trials factor by focusing on experimental strengths. [...]
Published in Acta Physica Polonica B 50 (2019) 837-851 10.5506/APhysPolB.50.837 arXiv:1610.09392
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2019-05-29
12:02
Dirac Shell Quark-core Model for the Study of Non-strange Baryonic Spectroscopy / De Sanctis, M.
A Dirac shell model is developed for the study of baryon spectroscopy, taking into account the most relevant results of the quark--diquark models. [...]
Published in Acta Physica Polonica B 50 (2019) 853-884 10.5506/APhysPolB.50.853 arXiv:1904.05266
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2019-03-12
13:48
Azimuthal Angular Decorrelation of Jets at Future High-energy Colliders / Hoş, İ. ; Saygın, H. ; Kuday, S.
The azimuthal angular decorrelation that is relevant to small-$x$ QCD physics is studied in this paper to show the BFKL effect with a recent event generator. [...]
Published in Acta Physica Polonica B 50 (2019) 149-158 10.5506/APhysPolB.50.149 arXiv:1809.01505
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2019-03-12
13:47
Dual QCD Insight into BSM Hadronic Matrix Elements for $K^0$--$\bar K^0$ Mixing from Lattice QCD / Buras, Andrzej J. ; Gérard, Jean-Marc
We calculate BSM hadronic matrix elements for $K^0$--$\bar K^0$ mixing in the Dual QCD approach (DQCD). [...]
Published in Acta Physica Polonica B 50 (2019) 121-140 10.5506/APhysPolB.50.121 arXiv:1804.02401
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2019-01-30
12:39
Quark Binding Potential and QGP / Pal, Shukla ; Bhattacharya, Aparajita ; Chakrabarti, Ballari ; Ghosh, Rismita
The effect of quark--antiquark potential on the dissociation energy and critical screening length of heavy meson such as $b\bar{b}$ and $c\bar{c}$ have been investigated when the respective meson is in Quark--Gluon Plasma (QGP). [...]
Published in Acta Physica Polonica B 49 (2018) 1865-1875 DOI 10.5506/APhysPolB.49.1865 arXiv:1812.01265
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2019-01-25
12:51
Massive Abelian Gauge Bosons in Front-form Hamiltonians / Głazek, Stanisław D.
It is shown how gauge bosons can be supplied with a mass term using the Higgs mechanism for the purpose of regulating Hamiltonians of Abelian gauge theories in the front form of quantum dynamics..
Published in Acta Physica Polonica B 50 (2019) 5-26 10.5506/APhysPolB.50.5 arXiv:1811.09728
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2019-01-25
12:51
Transverse Momentum $p_{\mathrm {T}}$ Spectra of Strange Particles Production in Different Collisions at $\sqrt {s_{NN}}$ = 2.76, 5.02 and 7 TeV / Yassin, Hayam ; Abo Elyazeed, Eman R.
We analyse the transverse momentum $p_{\rm T}$ spectra of strange particles $K^{0}_{\mathrm s}$, ${\mit\Lambda}$, and ${\mit\Xi}^{-}$ produced in Pb+Pb collision at $\sqrt{s_{NN}}= 2.76$~TeV, $p+{\rm Pb}$ collision at $\sqrt{s_{NN}} = 5.02$~TeV, and $p+p$ collision at $\sqrt{s_{NN}}= 7$~TeV in different multiplicity events measured by the CMS experiment at the Large Hadron Collider. [...]
Published in Acta Physica Polonica B 50 (2019) 37-54 10.5506/APhysPolB.50.37 arXiv:1812.04746
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