CC BY
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BMy. CepHH 3. OH3HKA. ACTPOHOMHfl. 2022. №2
B-Physics Results from CMS
Aleksandr Tulupov1'", Sergey Polikarpov1'2 (on behalf of the CMS Collaboration) E-mail: aaleksander.tulupov@cern.ch
1National Research Nuclear University «Moscow Engineering Physics Institute» (MEPhI), Moscow, Russia 2 The Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS), Moscow, Russia
Received January 16, 2022
In recent years there was significant progress in the B-physics studies including those at the Large Hadron Collider (LHC). This report will focus on two recent results in B-physics from the CMS collaboration. Keywords: B-physics, charmonium, quarkonium.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 263-267.
CPV in e+e-H at 1 TeV ILC
N. Vukasinovi c1'", T. Agatonovi c-Jovin1, I. Bozovi c-Jelisavci c1, G. Ka carevi c1, G. Milutinovi c-Dumbelovi c1,
I. Smiljanic1, M. Radulovic2, J. Stevanovic2 E-mail: nvukasinovic@vin.bg.ac.rs
1"VINCA"Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade.
Belgrade, Serbia 2 University of Kragujevac, Faculty of Science. Kragujevac, Serbia Received January 16, 2022
CP violation is one of Sakharovs conditions for the matter-antimatter asymmetry of the Universe. The experimentally observed size of CP violation is insufficient to account for this. Is CP violated in the Higgs sector? Could the SM-like Higgs boson be a mixture of CP even and CP odd states of an extended Higgs sector? With what precision could such effects be measured at future electron-positron colliders? These questions will be discussed in the light of the latest studies at ILC.
Keywords: ILC, Higgs boson, CP violation.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 268-269.
Measurements of Multi-Boson Productions Including Vector-Boson Fusion and Vector-Boson Scattering at ATLAS
Rongkun Wang (ATLAS Collaboration) E-mail: rongkun.wang@cern.ch
Harvard University. Cambridge, U.S.A. Received January 15, 2022
The electroweak production of multi-boson processes are a powerful tool to probe the Standard Model. The processes are sensitive to gauge boson self-interactions, which is related to non-Abelian structure of the electroweak interactions. Such processes also offer discovery opportunities. In this talk the latest results are presented, including ZZjj, Z^jj, and WWW processes.
Keywords: LHC, ATLAS, Run-2, electroweak, VBS, VBF, production, cross section, tri-boson.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 270-271.
New Experimental Results on Exotic XYZ States
Chang-Zheng Yuan1'2'" E-mail: ayuancz@ihep.ac.cn
1Institute of High Energy Physics, Chinese Academy of Sciences. Beijing, China 2 University of Chinese Academy of Sciences Beijing, China Received April 1, 2022
We review the experimental progress on the study of the quarkoniumlike states, also known as XYZ states. We give a general review and then focus on the new experimental results on the X, the Y(4260) and Y(4660), and the charged charmoniumlike Zc and Zcs states. The observations suggest that we did observe hadronic molecules and we also observed hadronic states with some other quark configurations.
Keywords: exotic states, quarkoniumlike states.
English version: Moscow University Physics Bulletin. 2022. 77, No. 2. Pp. 272-275.
