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12 April 2021
Perspectives on Productivity: Honorary Lecture by Professor Bart van Ark
At the HSE’s XXII April International Academic Conference, Bart van Ark, Professor of Productivity Studies at the Alliance Manchester Business School and the Managing Director of the Productivity Institute (the University of Manchester), will deliver an honorary lecture ‘Perspectives on Productivity: Benefits to Economy, Business, Workers and Society’ on April 14. He will also be participating in the roundtable on Productivity, Diversification and Sustainable Economic Growth. The roundtable will be held on April 15 and will be chaired by Professor Jakobson.
7 April 2021
HSE and Sberbank Will Host the April International Academic Conference on Economic and Social Development
From April 13 – 30, 2021, the XXII April International Academic Conference on Economic and Social Development (AIAC) will be held in Moscow. For the first time, the conference will be co-organized by HSE University and Sberbank.
6 April 2021
‘We Managed to Create Another Centre of Mathematical Life in Moscow’
In celebration of Russia’s Year of Science and Technology, we continue our series about HSE University’s international laboratories, which are headed by world-class scientists and scholars. The first of these, the Laboratory of Algebraic Geometry and Its Applications, was established in October 2010. Below, Laboratory Head Dmitry Kaledin discusses the Lab’s history, research, achievements, and current activities.

Article

Measurement of ๐œ“(2๐‘†) production cross-sections in proton-proton collisions at โˆš๐‘ =7 and 13 TeV

The European Physical Journal C - Particles and Fields. 2020. Vol. 80. No. 3. P. 1-23.
Derkach D., Guschin M., Kazeev N., Ratnikov F., Ustyuzhanin A., LHCb C.

The cross-sections of ๐œ“(2๐‘†) meson production in proton-proton collisions at ๐‘ √=13 TeV are measured with a data sample collected by the LHCb detector corresponding to an integrated luminosity of 275 pb−1. The production cross-sections for prompt ๐œ“(2๐‘†) mesons and those for ๐œ“(2๐‘†) mesons from b-hadron decays (๐œ“(2๐‘†)-from- ๐‘) are determined as functions of the transverse momentum, ๐‘T, and the rapidity, y, of the ๐œ“(2๐‘†) meson in the kinematic range 2<๐‘T<20 GeV/๐‘ and 2.0<๐‘ฆ<4.5

. The production cross-sections integrated over this kinematic region are

๐œŽ( prompt ๐œ“(2๐‘†),13 TeV)=1.430±0.005 (stat)±0.099 (syst)μb,๐œŽ(๐œ“(2๐‘†)-from- ๐‘,13 TeV)=0.426±0.002 (stat)±0.030 (syst)μb.

A new measurement of ๐œ“(2๐‘†)

production cross-sections in pp collisions at ๐‘ √=7 TeV is also performed using data collected in 2011, corresponding to an integrated luminosity of 614 pb−1. The integrated production cross-sections in the kinematic range 3.5<๐‘T<14 GeV/๐‘ and 2.0<๐‘ฆ<4.5

are

๐œŽ( prompt ๐œ“(2๐‘†),7 TeV)=0.471±0.001 (stat)±0.025 (syst)μb,๐œŽ(๐œ“(2๐‘†)-from- ๐‘,7 TeV)=0.126±0.001 (stat)±0.008 (syst)μb.

All results show reasonable agreement with theoretical calculations.

Language: English
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Keywords: Experimental High Energy Physics and Elementary Particles Physics
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