Search for jet extinction in the inclusive jet-pT spectrum from proton-proton collisions at s=8 TeV

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7  fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The extinction model studied in this analysis is motivated by the search for signatures of strong gravity at the TeV scale (terascale gravity) and assumes the existence of string couplings in the strong-coupling limit. In this limit, the string model predicts the suppression of all high-transverse-momentum standard model processes, including jet production, beyond a certain energy scale. To test this prediction, the measured transverse-momentum spectrum is compared to the theoretical prediction of the standard model. No significant deficit of events is found at high transverse momentum. A 95% confidence level lower limit of 3.3 TeV is set on the extinction mass scale

Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV

Searches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino pair production in which each neutralino decays either to a Higgs boson (h) and an LSP or to a Z boson and an LSP, leading to hh, hZ, and ZZ states with missing transverse energy (E-T(miss)). A second aspect is chargino-neutralino pair production, leading to hW states with E-T(miss). The decays of a Higgs boson to a bottom-quark pair, to a photon pair, and to final states with leptons are considered in conjunction with hadronic and leptonic decay modes of the Z and W bosons. No evidence is found for supersymmetric particles, and 95% confidence level upper limits are evaluated for the respective pair production cross sections and for neutralino and chargino mass values

Application of input data redundancy to the problem of target’s position determination in passive multiposition systems

В данной статье исследуется задача определения координат источников радиоизлучения (ИРИ) пассивными многопозиционными комплексами с использованием избыточной информации о пространственном положении цели. Показан метод решения переопределенной системы уравнений путем нахождения минимума квадратичного функционала, выполнен пример расчета координат ИРИ по разностнодальномерному методу и при использовании избыточных данных.В статті досліджується задача визначення координат джерел радіовипромінювання пасивними багатопозиційними комплексами з використанням надлишкової інформації стосовно просторового положення цілі. Наведений метод розв’язання перевизначеної системи рівнянь шляхом находження мінімуму квадратичного функціоналу, виконаний приклад розрахунку координат цілі з використанням різницево-далекомірного методу та при використанні надлишкових даних.This paper presents the problem of radio sources position determination in passive multiposition systems with using redundant information about the target’s spatial position. There is shown a method of the overdetermined system of equations solving by finding the minimum of a quadratic functional, there are made the examples of calculating radio sources position with help of range-difference method and with using the redundant data

A high strength brass plated wire for reinforcing high pressure hoses

Translated from Russian (Stal' 1986 (5) p. 66-67)Available from British Library Document Supply Centre- DSC:5828.4(M--36961)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo