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in creator/contributor: "Baldin, B."

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Color coherent radiation in multijet events from p{bar p} collisions at {radical}s = 1.8 TeV

We report on a study of color coherence effects in p{bar p} collisions based on data collected by the D0 detector during the 1992-1993 run of the Fermilab Tevatron collider at the center of mass energy {radical}s = 1.8 TeV. We demonstrate initial-to-final state color interference effects by measuring spatial correlations between soft and hard jets in multijet events. The data are compared to Monte Carlo simulations with different color coherence implementations and to the predictions of a NLO p… more

Date: August 1, 1995

Creator: Abachi, S.; Ahn, S. & Baldin, B.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Search for chargino-neutralino associated production via trileptonic final states with DO detector

Preliminary results from a search for the production of an associated lightest chargino, W{sub 1}, and second lightest neutralino, Z{sub 2}, pair with the D0 detector at Fermilab`s pp collider with {radical}s = 1.8 TeV are presented. Based on approximately 85 pb{sup -1} of data collected during the 1993-1995 Tevatron Runs we set a 95% C.L. upper limit on the chargino-neutralino cross section times branching fraction to any trileptonic final state ranging from 0.91 pb to 0.19 pb for wino masses … more

Date: September 1, 1996

Creator: Abachi, S.; Ahn, S.; Baldin, B. & Bhat, P.C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

D-Zero muon readout electronics design

The readout electronics designed for the D{null} Muon Upgrade are described. These electronics serve three detector subsystems and one trigger system. The front-ends and readout hardware are synchronized by means of timing signals broadcast from the D{null} Trigger Framework. The front-end electronics have continuously running digitizers and two levels of buffering resulting in nearly deadtimeless operation. The raw data is corrected and formatted by 16- bit fixed point DSP processors. These pr… more

Date: November 1, 1996

Creator: Baldin, B.; Hansen, S.; Los, S.; Matveev, M. & Vaniev, V.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

VME Data Acquisition Modules for MINERvA Experiment

This document describes two VME modules developed for MINERvA experiment at Fermilab. The Chain ReadOut Controller (CROC) module has four serial data channels and can interface with up to 48 front-ends using standard CAT5e networking cable. The data transmission rate of each channel is 160 Mbit/s. The maximum data transmission rate via VME bus is {approx}18 MB/s. The Chain Readout Interface Module (CRIM) is designed to provide various interface functions for the CROC module. It is compatible wi… more

Date: January 1, 2010

Creator: Baldin, B. & /fermilab

Item Type: Report

Partner: UNT Libraries Government Documents Department

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D{O} upgrade muon electronics design

The planned luminosity for the upgrade is ten times higher than at present (L {approximately} 10{sup 32}cm{sup {minus}2}s{sup {minus}1}) and involves a time between collisions as small as 132 ns. To operate in this environment, completely new electronics is required for the 17,500 proportional drift tubes of the system. These electronics include a deadtimeless readout, a digital TDC with about 1 ns binning for the wire signals, fast charge integrators and pipelined ADCs for digitizing the pad e… more

Date: November 1, 1994

Creator: Baldin, B.; Green, D.; Haggerty, H. & Hansen, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Search for Squarks and Gluinos in Events Containing Jets and a Large Imbalance in Transverse Energy

Using data corresponding to an integrated luminosity of 79 pb{sup -1}, D0 has searched for events containing multiple jets and large missing transverse energy in p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron collider. Observing no significant excess beyond what is expected from the standard model, they set limits on the masses of squarks and gluinos and on the model parameters m{sub 0} and m{sub 1/2}, in the framework of the minimal low-energy supergravity models of super… more

Date: February 1, 1999

Creator: Abbott, B.; Abolins, M.; Abramov, V.; Acharya, B. S.; Adam, I.; Adams, D. L. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The Muon system of the run II D0 detector

The authors describe the design, construction and performance of the upgraded D0 muon system for Run II of the Fermilab Tevatron collider. Significant improvements have been made to the major subsystems of the D0 muon detector: trigger scintillation counters, tracking detectors, and electronics. The Run II central muon detector has a new scintillation counter system inside the iron toroid and an improved scintillation counter system outside the iron toroid. In the forward region, new scintillat… more

Date: March 1, 2005

Creator: Abazov, V. M.; Acharya, B. S.; Alexeev, G. D.; Alkhazov, G.; Anosov, V. A.; Baldin, B. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department