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154,978 research outcomes, page 1 of 15,498
  • publication . Preprint . Article . 1998
    Open Access English
    Authors:
    E. Norrbin; Torbjörn Sjöstrand;
    Persistent Identifiers

    In the hadroproduction of charm in the context of string fragmentation, the pull of a beam remnant at the other end of a string may give a charm hadron more energy than the perturbatively produced charm quark. The collapse of a low-mass string to a single hadron is the ...

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  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Michaël Gillon; Brice-Olivier Demory; Valérie Van Grootel; Fatemeh Motalebi; Christophe Lovis; Andrew Collier Cameron; David Charbonneau; David W. Latham; Emilio Molinari; Francesco Pepe; ...
    Persistent Identifiers
    Countries: Italy, Belgium, United Kingdom

    HD 219134 is a K-dwarf star at a distance of 6.5 parsecs around which several low-mass planets were recently discovered. The Spitzer space telescope detected a transit of the innermost of these planets, HD 219134 b, whose mass and radius (4.5 MEarth and 1.6 REarth respe...

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  • publication . Preprint . Article . 1997
    Open Access English
    Authors:
    Ching-Ming Wei; Axel Groß; Matthias Scheffler;
    Persistent Identifiers

    The presence of sulfur atoms on the Pd(100) surface is known to hinder the dissociative adsorption of hydrogen. Using density-functional theory and the full-potential linear augmented plane-wave method, we investigate the potential energy surface (PES) of the dissociati...

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  • publication . Conference object . Preprint . Article . 2017
    Open Access English
    Authors:
    Michael B. Cohen; Jonathan A. Kelner; John Peebles; Richard Peng; Anup Rao; Aaron Sidford; Adrian Vladu;
    Persistent Identifiers
    Country: United States
    Project: NSF | AF: Large: Collaborative ... (1111109), NSF | Graduate Research Fellows... (1122374), NSF | AF: Medium: Taming Masssi... (1065125)

    In this paper we introduce a notion of spectral approximation for directed graphs. While there are many potential ways one might define approximation for directed graphs, most of them are too strong to allow sparse approximations in general. In contrast, we prove that f...

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  • publication . Other literature type . Article . Preprint . 2012
    Open Access English
    Authors:
    Daniele Angella; Maria Giovanna Franzini; Federico A. Rossi;
    Persistent Identifiers
    Country: Italy

    We use Bott-Chern cohomology to measure the non-K\"ahlerianity of 6-dimensional nilmanifolds endowed with the invariant complex structures in M. Ceballos, A. Otal, L. Ugarte, and R. Villacampa's classification, [Invariant Complex Structures on 6-Nilmanifolds: Classifica...

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  • publication . Preprint . Article . 2008
    Open Access English
    Authors:
    Pérez García, David; Wolf, M.M.; Sanz, M.; Verstraete, F.; Cirac, J.I.;
    Persistent Identifiers
    Countries: Spain, Belgium

    We show that the existence of string order in a given quantum state is intimately related to the presence of a local symmetry by proving that both concepts are equivalent within the framework of finitely correlated states. Once this connection is established, we provide...

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  • publication . Article . Preprint . 2012
    Open Access
    Authors:
    Giuseppe Di Bernardo; Carmelo Evoli; Daniele Gaggero; Dario Grasso; Luca Maccione;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | INVISIBLES (289442)

    A multichannel analysis of cosmic ray electron and positron spectra and of the diffuse synchrotron emission of the Galaxy is performed by using the DRAGON code. This study is aimed at probing the interstellar electron source spectrum down to E ~ 1 GeV and at constrainin...

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  • publication . Preprint . Article . 2005
    Open Access English
    Authors:
    Adel Awad; N. Chamoun; Shaaban Khalil;
    Persistent Identifiers

    We study the effect of adding charged matter fields to both D3 and D7 branes in type IIB string theory compactification with fluxes. Generically, charged matter fields induce additional terms to the Kahler form, the superpotential and the D-terms. These terms allow for ...

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  • publication . Article . Preprint . 2021
    Open Access English
    Authors:
    Bertrand Jayles; Clément Sire; Ralf H. J. M. Kurvers;
    Publisher: HAL CCSD
    Country: France

    Cognitive biases are widespread in humans and animals alike, and can sometimes be reinforced by social interactions. One prime bias in judgment and decision-making is the human tendency to underestimate large quantities. Previous research on social influence in estimati...

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  • publication . Article . Preprint . 2021
    Open Access English
    Authors:
    Bhaskar Biswas; Prasanta Char; Rana Nandi; Suvadeep Bose;
    Persistent Identifiers

    Observations of neutron stars (NSs) by the LIGO-Virgo and NICER collaborations have provided reasonably precise measurements of their various macroscopic properties. In this paper, we employ a Bayesian framework to combine them and place improved joint constraints on th...

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154,978 research outcomes, page 1 of 15,498