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Full-Text Articles in Physical Sciences and Mathematics

Implications Of D0- ¯D0 Mixing For New Physics, Eugene Golowich, Joanne Hewett, Sandip Pakvasa, Alexey A. Petrov Jun 2007

Implications Of D0- ¯D0 Mixing For New Physics, Eugene Golowich, Joanne Hewett, Sandip Pakvasa, Alexey A. Petrov

Eugene Golowich

We provide a comprehensive, up-to-date analysis of possible New Physics contributions to the mass difference ∆M_D in D^0- D ̅^0 mixing. We consider the most general low energy effective Hamiltonian and include leading order QCD running of effective operators. We then explore an extensive list of possible New Physics models that can generate these operators, which we organize as including Extra Fermions, Extra Gauge Bosons, Extra Scalars, Extra Space Dimensions and Extra Symmetries. For each model we place restrictions on the allowed parameter space using the recent evidence for observation of D meson mixing. In many scenarios, we find strong …


Discovery Of A Molecular Outflow In The Haro 6-10 Star-Forming Region, Irena Stojimirovic, Gopal Narayanan, Ronald L. Snell Jan 2007

Discovery Of A Molecular Outflow In The Haro 6-10 Star-Forming Region, Irena Stojimirovic, Gopal Narayanan, Ronald L. Snell

Gopal Narayanan

No abstract provided.


Goods-Herschel Measurements Of The Dust Attenuation Of Typical Star-Forming Galaxies At High Redshift: Observations Of Uv-Selected Galaxies At Z~2, N. Reddy, M. Dickinson, D. Elbaz, G. Morrison, Mauro Giavalisco, R. Ivison, C. Papovich, D. Scott, V. Buat, D. Burgarella, V. Charmandaris, E. Daddi, G. Magdis, E. Murphy, B. Altieri, H. Aussel, H. Dannerbauer, K. Dasyra, H. S. Hwang, J. Kartaltepe, R. Leiton, B. Magnelli, P. Popesso Jan 2007

Goods-Herschel Measurements Of The Dust Attenuation Of Typical Star-Forming Galaxies At High Redshift: Observations Of Uv-Selected Galaxies At Z~2, N. Reddy, M. Dickinson, D. Elbaz, G. Morrison, Mauro Giavalisco, R. Ivison, C. Papovich, D. Scott, V. Buat, D. Burgarella, V. Charmandaris, E. Daddi, G. Magdis, E. Murphy, B. Altieri, H. Aussel, H. Dannerbauer, K. Dasyra, H. S. Hwang, J. Kartaltepe, R. Leiton, B. Magnelli, P. Popesso

Mauro Giavalisco

We take advantage of the sensitivity and resolution of Herschel at 100 and 160 micron to directly image the thermal dust emission and investigate the infrared luminosities, L(IR), and dust obscuration of typical star-forming (L*) galaxies at high redshift. Our sample consists of 146 UV-selected galaxies with spectroscopic redshifts 1.51e10 Lsun at z~2 are luminous infrared galaxies (LIRGs) with a median L(IR)=(2.2+/-0.3)e11 Lsun. Typical galaxies at 1.5


Luminous And High Stellar Mass Candidate Galaxies At Z\Approx8 Discovered In Candels, Haojing Yan, Steven L. Finkelstein, Kuang-Han Huang, Russell E. Ryan, Henry C. Ferguson, Anton M. Koekemoer, Norman A. Grogin, Mark Dickinson, Jeffrey A. Newman, Rachel S. Somerville, Romeel Davé, S. M. Faber, Casey Papovich, Yicheng Guo, Mauro Giavalisco, Kyoung-Soo Lee, Naveem Reddy, Asantha R. Cooray, Brian D. Siana, Nimish P. Hathi, Giovanni G. Fazio, Matthew Ashby, Benjamin J. Weiner, Ray A. Lucas, Avishai Dekel, Laura Pentericci, Christopher J. Conselice, Dale D. Kocevski, Kamson Lai Jan 2007

Luminous And High Stellar Mass Candidate Galaxies At Z\Approx8 Discovered In Candels, Haojing Yan, Steven L. Finkelstein, Kuang-Han Huang, Russell E. Ryan, Henry C. Ferguson, Anton M. Koekemoer, Norman A. Grogin, Mark Dickinson, Jeffrey A. Newman, Rachel S. Somerville, Romeel Davé, S. M. Faber, Casey Papovich, Yicheng Guo, Mauro Giavalisco, Kyoung-Soo Lee, Naveem Reddy, Asantha R. Cooray, Brian D. Siana, Nimish P. Hathi, Giovanni G. Fazio, Matthew Ashby, Benjamin J. Weiner, Ray A. Lucas, Avishai Dekel, Laura Pentericci, Christopher J. Conselice, Dale D. Kocevski, Kamson Lai

Mauro Giavalisco

One key goal of the {\it Hubble Space Telescope} Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey is to track galaxy evolution back to $z\approx 8$. Its two-tiered "wide and deep" strategy bridges significant gaps in existing near-infrared surveys. Here we report on $z\approx 8$ galaxy candidates selected as F105W-band dropouts in one of its deep fields, which covers $\sim 62.9$ arcmin$^2$ to 4 ks per filter depth in the Great Observatories Origins Deep Survey southern field. We construct two independent samples using different but legitimate photometry and procedure. While they differ significantly on an object-by-object basis, our conclusions based on …