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Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 929:29-33
The reconstruction of the invariant mass of $\tau$ lepton pairs is important for analyses containing Higgs and Z bosons decaying to $\tau^{+}\tau^{-}$, but highly challenging due to the neutrinos from the $\tau$ lepton decays, which cannot be measure
Autor:
Betty Calpas, Lorenzo Bianchini, Andrew Fowlie, Christian Veelken, Luca Marzola, Lucia Perrini, John E Conway
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 862
We present an algorithm for the reconstruction of the Higgs mass in events with Higgs bosons decaying into a pair of leptons. The algorithm is based on matrix element (ME) techniques and achieves a relative resolution on the Higgs boson mass of typic
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 788:128-136
We present a technique for reconstructing the kinematics of pair-produced top quarks that decay to a charged lepton, a neutrino and four final state quarks in the subset of events where only three jets are reconstructed. We present a figure of merit
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 738:154-166
Observing WZ/ZZ production at the Tevatron in the final state with a lepton, missing transverse energy and two jets is extremely difficult because of the low signal rate and the very large background. In the attempt to increase the acceptance in the
Autor:
Jose Repond
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 732:466-469
To fully exploit the physics potential of a future Lepton Collider requires detectors with unprecedented jet energy and dijet-mass resolution. To meet these challenges, detectors optimized for the application of Particle Flow Algorithms (PFAs) are be
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 654:481-489
Accurate reconstruction of the mass of a resonance decaying to a pair of τ leptons is challenging because of the presence of multiple neutrinos from τ decays. The existing methods rely on either a partially reconstructed mass, which has a broad spe
Autor:
A.J. Tanasijczuk
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 718:255-257
Hadronic tau decays play a crucial role in the search for physics beyond the Standard Model as well as in Standard Model measurements. However, hadronic tau decays are difficult to identify and trigger on due to their resemblance to QCD jets. Given t
Autor:
M. Altmann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 520:120-124
The current status of neutrino physics is reviewed. With the recent establishment of non-zero neutrino masses and lepton flavour mixing a long-standing open issue has been resolved. However, fundamental questions still remain unanswered, among them t
Autor:
V. Paolone, Mitsuhiro Nakamura, Masahiro Komatsu, T. Toshito, J. S. Song, B. Baller, Koichi Kodama, T. Kafka, N. Nonaka, G. Tzanakos, B. Lundberg, S. Yoshida, Roger Rusack, D. J. Boehnlein, K. Narita, R. A. Rameika, Osamu Sato, T. Hara, M. A. Kubantsev, N. R. Stanton, Takayoshi Kawai, Niki Saoulidou, M. Skender, C. Erickson, D. P. Ciampa, S. H. Chung, K. Okada, N. Giokaris, W. P. Oliver, C. Rosenfeld, H. Matsuoka, J. Kawada, J. Trammell, C. Andreopoulos, P. Berghaus, Reinhard Schwienhorst, C. S. Yoon, R. A. Sidwell, Shigeki Aoki, Ken Heller, H. Jiko, T. Akdogan, Toshiyuki Nakano, M. Miyanishi, Matt W. Graham, N. W. Reay, J. Sielaff, A. Kulik, J. Wilcox, K. Hoshino, J. Schneps, K. Niwa
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 516:21-33
The experimental apparatus used for the first direct observation of the tau neutrino (the DONUT experiment) is described. Its main features consisted of a target system composed of nuclear emulsion targets and scintillation fiber trackers, a magnetic
Autor:
Y. Fukuda
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 503:114-117
Super-Kamiokande has observed solar neutrinos from the Sun since 1996. From recent result from 1258 days measurement, the obtained 8 B solar neutrino flux is 2.32±0.03( stat. ) +0.08 −0.07 ×10 6 cm −2 s −1 . According to the zenith spectrum a