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The Worldwide LHC Computing Grid relies on the network as a critical part of its infrastructure and therefore needs to guarantee effective network usage and prompt detection and resolution of any network issues, including connection failures, congestion, traffic routing, etc. The WLCG Network and Transfer Metrics project aims to integrate and combine all network-related monitoring data collected by the WLCG infrastructure. This includes FTS monitoring information, monitoring data from thedoi:10.1088/1742-6596/664/5/052003 fatcat:fuegrox22bh25gbizuihcffavm
more »... federation, as well as results of the perfSONAR tests. The main challenge consists of further integrating and analyzing this information in order to allow the optimizing of data transfers and workload management systems of the LHC experiments. In this contribution, we present our activity in commissioning WLCG perfSONAR network and integrating network and transfer metrics: We motivate the need for the network performance monitoring, describe the main use cases of the LHC experiments as well as status and evolution in the areas of configuration and capacity management, datastore and analytics, including integration of transfer and network metrics and operations and support.
Physical Review D
Physics, University of Illinois at Urbana- i j l m zerland. p Now at IEKP Universität Karlsruhe, Germany. ...doi:10.1103/physrevd.70.032005 fatcat:shg33l76gnc5vfzwbwitvxsk44
European Journal of Clinical Investigation
J. Taylor, B. Rajagopalan and G. K. Radda Bone mass of spine and forearm in osteoporosis and in German normals: influence of sex, age and anthropometric parameters: C. Wiister, G. Duckeck, A. ... J. Zijlstra, J. E. Vincent, W. M. Mol, H. C. Hoogsteden, P. Th. W. Van Hal and R. C. Jongejan Affinity of anti-HBs antibody after hepatitis B vaccination: M. Radkowski, T. Laskus, A. Goch and J. ...
A χ 2 value is calculated at each c.m. energy: χ 2 = n i,j P i − t i (α S ) V −1 ij P j − t j (α S ) (3) where i, j include the bins within the fit range of the event shape distribution, P i is the measured ... N k N k = 1 N 4 k α 2 k N k (N δ ik − N i )(N δ jk − N j ), (4) where δ ik is the Kronecker delta function, and the other terms are defined in Sect. 5.2. ...doi:10.1140/epjc/s10052-011-1733-z fatcat:hvfega2stfec5kefoijkn2zmpe
Becattini for applying the thermodynamic model to the − antihyperon correlations and we thank J. Lamsa and K. ... (j ). ... N data N MC · D (MC,like) i,k (j, d 0 ); (5) D unlike (j, d 0 ) − D like (j, d 0 ) = i,k η (a) i,k · N data N MC · D (MC,unlike) i,k (j, d 0 ) − D (MC,like) i,k (j, d 0 ) . (6) The (5) and (6) . ...doi:10.1140/epjc/s10052-009-1175-z fatcat:pf36ma6aincpxph6o4s7tazf7m
-jet, where j = i + 1. ... Both the fermionic (2τ , 2j + τ and 4j) and the bosonic (4j + τ , 6j + and 8j) final states play an important role and therefore their results have to be combined. ...doi:10.1140/epjc/s10052-012-2076-0 pmid:25814843 pmcid:PMC4371074 fatcat:vd2hngdxcbdfje7heuly5oxkei
< 6 GeV (in tag plane) j cos #j < 0:97 p T > 0:1GeV Electromagnetic E raw > 0:17 GeV Cluster Cluster is not associated with a track Quality (association half-angle = 0 : 1 rad) Track 3 c harged ... Following [2, 3] , we consider two VMD models, with dierent angular distributions of the quark-antiquark axis in the two-photon centre-of- jp T vis out j < 4 GeV (out of tag plane) Hadronic mass 2:5 GeV ...doi:10.1007/bf01413097 fatcat:7ll4forohbahzbb6mqutgix7gm
J= !`Branching Ratio Combining the measured branching ratios for B 0 ; B + ! J= and J= !`+` decays  gives for + The c ! ... The matching requirement, pos < 3, removes roughly 20% of prompt muons passing the p, p t and j cos j cuts. ...doi:10.1007/bf01553012 fatcat:exkpz4duv5a7fecrhqsiq5qxa4
sin j. ... The electromagnetic calorimeter system provides coverage over nearly the full solid angle, for j cos j 0 : 98. ...doi:10.1007/bf01566683 fatcat:sa6vyixps5bibpknggasvy6vmy
Events were required to lie within the angular range j cos j < 0:70, j cos j < 0:95 and j cos j < 0:90 for the e + e , + and + channels, respectively. ... 180 j < 20 , where = j R L j; E L + E R > (2=3) p s; E L;R > 0:225 p s. ...doi:10.1007/bf01560340 fatcat:7ex2ubsdrfbdbigtszbqj4awaa
of 7.5 cm with a coverage of j cos j < 0:77. ... cos j < 0:92. ...doi:10.1007/bf01557696 fatcat:t4t6pf2g4vfvfaqzjzrnc7kd2e
j in the data. ... A jet resolution variable y ij is dened for each pair of particles i and j by: y ij = 2 min(E 2 i ; E 2 j )(1 cos ij ) E 2 vis ; (5) where E i and E j are the energies of the two particles or jets i and ...doi:10.1007/bf01555834 fatcat:smpevxkisrcevmjhje7tdgk5zy
We calculate the TPAC (see formula (4) ) in the two i n tervals 0 < j 1 j < 1 and 1 < j 1 j < 2 , with 0 < j 12 j < 1 . ... = 1 cos i j ( i j is the angle between partons i and j). ...doi:10.1007/bf01560339 fatcat:4gple2s33fhxvnkc62pxszg2ii
The neutral (770) 0 , K (892) 0 and (1020) vector meson states have spin-parity J P C = 1 , are in the same nonet of SU(3) F and have similar masses. ... Subsequently only well measured tracks of momentum above 0.25 GeV/c, with j cosj < 0:72 and with associated z-chamber hits, were used in making the mass spectra. ...doi:10.1007/bf01474724 fatcat:singnimiifh4tlwwfmno6dhepu
Events were required to lie within the angular ranges j cosj < 0:70, j cos j < 0:95 and j cos j < 0:90 for the e + e , + and + channels, respectively. ... e + e , within j cosj < 0:70; b) e + e ! + , within j cosj < 0:95; c) e + e ! ...doi:10.1007/bf01641883 fatcat:tnwosgisqjakxphpwszrptat2a
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