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21 papers · 1 filter
The transverse momentum dependence of charged kaon Bose-Einstein correlations in the SELEX experiment
SELEX Collaboration, G. A. Nigmatkulov, A. K. Ponosov +101
We report on the measurement of the one-dimensional charged kaon correlation functions using 600~GeV/{\it c} , and 540~GeV/{\it c} beams from the SELEX~(E781) experi…
Search for supersymmetry in hadronic final states with missing transverse energy using the variables AlphaT and b-quark multiplicity in pp collisions at 8 TeV
CMS Collaboration
An inclusive search for supersymmetric processes that produce final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of 8 TeV…
Observation of electron-antineutrino disappearance at Daya Bay
F. P. An, J. Z. Bai, A. B. Balantekin +264
The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle with a significance of 5.2 standard deviations. Antineutrinos from six…
Nuclear Dependence of Charm Production
The SELEX Collaboration, A. Blanco-Covarrubias, J. Engelfried
With data taken by SELEX, which accumulated data during the 1996-1997 fixed target run at Fermilab, we study the production of charmed hadrons on copper and carbon targets with Sig…
Observation of a resonance in the Kp decay channel at a mass of 1765 MeV/c
WA89 Collaboration, M. I. Adamovich, Yu. A. Alexandrov +60
We report on the observation of a Kp resonance signal at a mass of 17655 MeV/c, with intrinsic width MeV/c, produced inclusively in -nucleus in…
First observation of a narrow charm-strange meson DsJ(2632) -> Ds eta and D0 K+
The SELEX Collaboration, A. V. Evdokimov
We report the first observation of a charm-strange meson DsJ(2632) at a mass of 2632.6+/-1.6 MeV/c^2 in data from SELEX, the charm hadro-production experiment E781 at Fermilab. Thi…
Production Asymmetry of from 600 GeV/c and beam
M. Kaya
The production of relative to as a function of with 600 GeV/c beam is measured in the interval by the SELEX (E781) experiment at Fer…
First Observation of the Doubly Charmed Baryon Xi_cc^+
The SELEX Collaboration, M. Mattson
We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm hadro-production experiment at Fermi…
Hadronic Production of Lambda_c from 600 GeV/c pion, sigma and proton beams
SELEX Collaboration, Fernanda G. Garcia
We present data from Fermilab experiment E781 (SELEX) on the hadroproduction asymmetry for anti-Lambda_c compared to Lambda_c+ as a function of xF and pt2 distributions for Lambda_…
First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering
FNAL SELEX Collaboration
Pion Virtual Compton Scattering (VCS) via the reaction pi e --> pi e gamma was observed in the Fermilab E781 SELEX experiment. SELEX used a 600 GeV/c pi- beam incident on target at…
Performance of prototype BTeV silicon pixel detectors in a high energy pion beam
J. A. Appel, M. Artuso, J. N. Butler +21
The silicon pixel vertex detector is a key element of the BTeV spectrometer. Sensors bump-bonded to prototype front-end devices were tested in a high energy pion beam at Fermilab.…
Measurement of the Ds lifetime
M. Iori
We report precise measurement of the Ds meson lifetime. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/c Sigma-, pi- and p beams. The measurement has…
Measurement of the Sigma^- Charge Radius by Sigma^- Electron Elastic Scattering
SELEX Collaboration, I. Eschrich
The Sigma^- mean squared charge radius has been measured in the space-like Q^2 range 0.035-0.105 GeV^2/c^2 by elastic scattering of a Sigma^- beam off atomic electrons. The measure…
Beam Test of BTeV Pixel Detectors
J. C. Wang, J. A. Appel, M. Artuso +20
The silicon pixel vertex detector is one of the key elements of the BTeV spectrometer. Detector prototypes were tested in a beam at Fermilab. We report here on the measured spatial…
Precision measurements of the Lambda_c+ and D0 lifetimes
The SELEX collaboration, A. Kushnirenko
We report new precision measurements of the lifetimes of the Lambda_c+ and D0 from SELEX, the charm hadro-production experiment at Fermilab. Based upon 1630 Lambda_c+ and 10210 D0…
Beam Test Results of the BTeV Silicon Pixel Detector
G. Chiodini, J. A. Appel, M. Artuso +20
The results of the BTeV silicon pixel detector beam test carried out at Fermilab in 1999-2000 are reported. The pixel detector spatial resolution has been studied as a function of…
Total Cross Section Measurements with pi-, Sigma- and Protons on Nuclei and Nucleons around 600 GeV/c
The SELEX Collaboration, U. Dersch
Total cross sections for Sigma- and pi- on beryllium, carbon, polyethylene and copper as well as total cross sections for protons on beryllium and carbon have been measured in a br…
Observation of the Cabibbo-suppressed decay Xi_c+ -> p K- pi+
SELEX Collaboration, S. Y. Jun
We report the first observation of the Cabibbo-suppressed charm baryon decay Xi_c+ -> p K- pi+. We observe 150 +- 22 events for the signal. The data were accumulated using the SELE…
First Charm Hadroproduction Results from SELEX
SELEX Collaboration, J. Russ
The SELEX experiment (E781) at Fermilab is a 3-stage magnetic spectrometer for the high statistics study of charm hadroproduction out to large x_F using 600 GeV Sigma^-, p and pi b…
A Search for Light Super Symmetric Baryons
I. F. Albuquerque
We have searched for the production and decay of light super-symmetric baryons produced in 800 GeV/c proton copper interactions in a charged hyperon beam experiment. We observe no…
Measurement of the polarization of Lambda0 AntiLambda0, Sigma+ and Xi- produced in a Sigma- beam of 330 GeV/c
M. I. Adamovich
The polarization of Lambda0, AntiLambda0, Sigma+ and Xi- inclusively produced in Sigma- induced interactions at 330 GeV has been measured in the experiment WA89 at CERN. This is th…