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“Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV”
Physics Letters B. 2014. Vol. 739. P. 218.
Derkach D., Aaij R.
The B0bar-B0 and Bsbar-Bs production asymmetries, AP(B0) and AP(Bs), are measured by means of a time-dependent analysis of B0 -> J/\psi K*0, B0 -> D- pi+ and Bs -> Ds- pi+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb^{-1}, collected by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and Bs mesons within the LHCb acceptance. The production asymmetries, integrated over pT and eta in the range 4 < pT< 30 GeV/c and 2.5<eta<4.5, are determined to be AP(B0) = (-0.35 +/- 0.76 +/- 0.28)% and AP(Bs) = (1.09 +/- 2.61 +/- 0.66)%, where the first uncertainties are statistical and the second systematic.
Derkach D., Aaij R., Adeva B., Physics Letters B 2015 Vol. 741 P. 1
Added: July 7, 2015
Derkach D., Aaij R., Journal of High Energy Physics 2013 Vol. 183 P. 1310
Direct and mixing-induced $C\!P$-violating asymmetries in $B^0_s \to K^+K^-$ decays are measured for the first time using a data sample of $pp$ collisions, corresponding to an integrated luminosity of $1.0~\mathrm{fb}^{-1}$, collected with the LHCb detector at a centre-of-mass energy of $7~\mathrm{TeV}$. The results are $C_{KK} = 0.14 \pm 0.11 \pm 0.03$ and $S_{KK} = 0.30 ...
Added: July 9, 2015
ISAST: International Society for the Advancement of Science and Technology, 2013
Added: September 9, 2013
Киселева Н. Н., Дударев В.А., Столяренко А. В., Вестник Казанского технологического университета 2014 Т. 17 № 19 С. 372-376
Integrated system (IS) of databases (DB) on the properties of inorganic substances and materials that includes DBs developed by Baikov Institute (Russia) and NIMS (Japan) was created. The service-oriented architecture on the basis of Web-services application for support of interaction between heterogeneous information systems was used for DBs integrations. The special metabase is used for ...
Added: January 20, 2016
Myachin A. L., Procedia Computer Science 2014 No. 31 P. 468-473
This paper study the world of education data and patent activity for the period of 1979-2006 years using the latest methods of pattern analysis: a linear pattern-classification and ordinal-invariant pattern clustering. Attempt is made to reflect the situation regarding primary, secondary and higher education in 37 countries. ...
Added: June 25, 2014
Springer, 2019
Added: October 14, 2019
Rebrova O., Российская ринология 2018 Т. 26 № 1 С. 65-68
Description of the statistical analysis of the data contained in original articles. Typical mistakes ...
Added: October 2, 2018
Alexey Mitsyuk, Anna Kalenkova, Sergey A. Shershakov et al., Business Informatics 2014 Vol. 29 No. 3 P. 15-27
E-trade systems are widely used to automate sales processes. Inefficiencies and bottlenecks in the sales processes lead to business losses. Conventional approaches to identifying problems require much time and result in subjective conclusions. This paper proposes an approach for the analysis of e-trade system processes based on the application of process mining techniques. Process mining ...
Added: August 29, 2014
NY : Springer, 2014
This book constitutes the proceedings of the Third International Conference on Analysis of Images, Social Networks and Texts, AIST 2014, held in Yekaterinburg, Russia, in April 2014. The 11 full and 10 short papers were carefully reviewed and selected from 74 submissions. They are presented together with 3 short industrial papers, 4 invited papers and ...
Added: November 4, 2014
Mirkin B., L. : Springer, 2011
This is a textbook in data analysis. Its contents are heavily influenced by the idea that data analysis should help in enhancing and augmenting knowledge of the domain as represented by the concepts and statements of relation between them. According to this view, two main pathways for data analysis are summarization, for developing and augmenting ...
Added: January 11, 2014
Isaev E., Kornilov V., Математическая биология и биоинформатика 2013 Т. 8 № 1 С. 49-65
Today we have the problem of big science data. The information collecting in science experiments, especially in bioinformatics and astrophysics grows in amazing rate. In this paper we consider special program techniques and computer technologies used for work with superlarge volumes of data. Also, we discuss the state of affairs with the big data in ...
Added: March 3, 2013
Derkach D., Likhomanenko T., Rogozhnikov A., Journal of Physics: Conference Series 2016 No. 762 P. 012045
Identifying the flavour of neutral B mesons production is one of the most important components needed in the study of time-dependent CP violation. The harsh environment of the Large Hadron Collider makes it particularly hard to succeed in this task. We present an inclusive flavour-tagging algorithm as an upgrade of the algorithms currently used by ...
Added: December 1, 2016
Berlin : Springer, 2013
This book continues the biannual series of conference proceedings, which has become a classical reference resource in traffic and granular research alike. It addresses new developments at the interface between physics, engineering and computational science. Complex systems, where many simple agents, be they vehicles or particles, give rise to surprising and fascinating phenomena.
The contributions collected ...
Added: March 17, 2015
Shapoval S., Le Mouël J. -., Shnirman M. G. et al., Astronomy and Astrophysics 2018 Vol. 618 P. A183-1-A183-13
The hypothesis stating that the distribution of sunspot groups versus their size ($\varphi$) follows a power law in the domain of small groups was recently highlighted but rejected in favor of a Weibull distribution. In this paper we re-consider this question, and are led to the opposite conclusion. We suggest a new definition of group ...
Added: October 26, 2018
ISAST: International Society for the Advancement of Science and Technology, 2017
Added: September 5, 2017
Miasnikof P., Shestopaloff A. Y., Bonner A. J. et al., Journal of Complex Networks 2020 Vol. 8 No. 3 P. 1-33
We introduce graph clustering quality measures based on comparisons of global, intra- and inter-cluster densities, an accompanying statistical significance test and a step-by-step routine for clustering quality assessment. Our work is centred on the idea that well-clustered graphs will display a mean intra-cluster density that is higher than global density and mean inter-cluster density. We ...
Added: August 4, 2020
Malanchev K., Pruzhinskaya M. V., Korolev V. S. et al., Monthly Notices of the Royal Astronomical Society 2021 Vol. 502 No. 4 P. 5147-5175
We present results from applying the SNAD anomaly detection pipeline to the third public data release of the Zwicky Transient Facility (ZTF DR3). The pipeline is composed of three stages: feature extraction, search of outliers with machine learning algorithms, and anomaly identification with followup by human experts. Our analysis concentrates in three ZTF fields, comprising ...
Added: March 4, 2021
Springer, 2021
This book constitutes revised selected papers from the 9th International Conference on Analysis of Images, Social Networks and Texts, AIST 2020, held during October 15-16, 2020. The conference was planned to take place in Moscow, Russia, but changed to an online format due to the COVID-19 pandemic.
The 27 full papers and 4 short papers presented ...
Added: October 7, 2020
Borisyak M., Ratnikov F., Ustyuzhanin A., Physical Review Letters 2017 Vol. 118 No. 25 P. 251802-251812
A search for the rare decays Bs0→τ+τ- and B0→τ+τ- is performed using proton–proton collision data collected with the LHCb detector. The data sample corresponds to an integrated luminosity of 3 fb-1 collected in 2011 and 2012. The τ leptons are reconstructed through the decay τ-→π-π+π-ντ. Assuming no contribution from B0→τ+τ- decays, an upper limit is set ...
Added: October 22, 2017
The LHCb C., Boldyrev A., Derkach D. et al., Journal of High Energy Physics 2020 Vol. 2020 No. 6 Article 110
This paper presents an analysis of the Λ0𝑏Λb0→ J/ψΛ angular distribution and the transverse production polarisation of Λ0𝑏Λb0 baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fb−1, collected with the LHCb experiment. The polarisation is determined in a fiducial region ...
Added: September 17, 2020
Berlin : Springer, 2014
The volume is dedicated to Boris Mirkin on the occasion of his 70th birthday. In addition to his startling PhD results in abstract automata theory, Mirkin’s ground breaking contributions in various fields of decision making and data analysis have marked the fourth quarter of the 20th century and beyond. Mirkin has done pioneering work in ...
Added: October 7, 2013
Aleskerov F. T., Demin S., Richman M. et al., International Journal of Information Technology and Decision Making 2020 Vol. 19 No. 5 P. 1177-1187
Tornado prediction variables are analyzed using machine learning and decision analysis techniques. A model based on several choice procedures and the superposition principle is applied for different methods of data analysis. The constructed model has been tested on a database of tornadic events. It is shown that the tornado prediction model developed herein is more ...
Added: October 22, 2019
Ponomarenko A., Pitsoulis L., Shamshetdinov M., Plos One 2021 Vol. 16 No. 8 Article e0255717
In this paper, we present a new method for detecting overlapping communities in net- works with a predefined number of clusters called LPAM (Link Partitioning Around Medoids). The overlapping communities in the graph are obtained by detecting the disjoint communities in the associated line graph employing link partitioning and parti- tioning around medoids which are ...
Added: December 9, 2020
Malova H. V., V. Yu. Popov, Grigorenko E. E. et al., Astrophysical Journal 2017 Vol. 834 No. 34 P. 1-9
We investigate quasi-adiabatic dynamics of charged particles in strong current sheets (SCSs) in the solar wind, including the heliospheric current sheet (HCS), both theoretically and observationally. A self-consistent hybrid model of an SCS is developed in which ion dynamics is described at the quasi-adiabatic approximation, while the electrons are assumed to be magnetized, and their ...
Added: February 15, 2017