Results 81 to 90 of about 59,441 (232)

What can we learn from $B\to a_1(1260)(b_1(1235))\pi(K)$ decays?

, 2008
We investigate the $B\to a_1(1260)(b_1(1235))\pi(K)$ decays under the factorization scheme and find many discrepancies between theoretical predictions and the experimental data.
A. R. Williamson, B. H. Hong, Cai-Dian Lü, J. Charles, Run-Hui Li, Wei Wang   +5 more
core   +1 more source

Review for "Estimate of Strouhal and Reynolds numbers for swimming penguins"

, 2021

openalex   +1 more source

Effects of nest type and sex on blood saccharide profiles in Humboldt penguins (Spheniscus humboldti): Implications for habitat conservation.

PLoS ONE, 2020
Reproductive success of endangered Humboldt penguin (Spheniscus humboldti) colonies in Peru has been associated with nesting habitat type, presumably due to differences in environmental exposure and activity patterns that may affect energy demands and ...
David J Schaeffer, Jeffrey M Levengood, Michael J Adkesson   +2 more
doaj   +1 more source

Leptoquarks meet $\varepsilon'/\varepsilon$ and rare Kaon processes [PDF]

, 2016
We analyse for the first time the CP violating ratio $\varepsilon'/\varepsilon$ in $K\to \pi\pi$ decays in leptoquark (LQ) models. Assuming a mass gap to the electroweak (EW) scale, the main mechanism for LQs to contribute to $\varepsilon'/\varepsilon ...
Alok K. Mukherjee (1400752), Basab Chattopadhyay (1860220), Monika Mukherjee (2102704), Uday Das (2131294)   +3 more
core   +4 more sources

Effects of R-parity violation on direct CP violation in B decays and extraction of $\gamma$ [PDF]

, 1999
In the standard model, direct CP-violating asymmetries for $B^\pm \to \pi^\pm K$ are roughly 2% based on perturbative calculation. Rescattering effects might enhance it to at most (20-25)%. We show that lepton-number-violating couplings in supersymmetric
A. Ali, A. Buras, A. Buras, A. Buras, A. Buras, A. Buras, A. Falk, Amitava Datta, C. Aulakh, D. Atwood, D. Guetta, G. Farrar, Gautam Bhattacharyya, K. Huitu, M. Artuso, M. Chemtob, M. Gronau, M. Gronau, N. Deshpande, N. Deshpande, N. Deshpande, N. Sakai, R. Barbieri, R. Fleischer, R. Fleischer, R. Fleischer, S. Weinberg, X.-G. He   +27 more
core   +2 more sources

A fearful scourge to the penguin colonies: Southern giant petrel (Macronectes giganteus) predation on living Magellanic penguins (Spheniscus magellanicus) may be more common than assumed

Ecology and Evolution
Southern giant petrels (Macronectes giganteus) are important consumers that range across the oceans throughout the southern hemisphere. In Argentina, previous studies have shown they eat primarily pinnipeds and penguins, which they are assumed to ...
Eric L. Wagner, Ginger A. Rebstock, P. Dee Boersma   +2 more
doaj   +1 more source

Penguins leaving the pole: bound-state effects in B decaying to K* + photon

, 1994
Applying perturbative QCD methods recently seen to give a good description of the two body hadronic decays of the B meson, we address the question of bound-state effects on the decay B into K* + gamma.
A. Ali, A. Szczepaniak, B. Grinstein, C. Bernard, C. E. Carlson, C.E. Carlson, C.E. Carlson, C.E. Carlson, C.W. Bernard, D. Atwood, F. Gilman, G. Cella, G. Farrar, J. Hewitt, J. Milana, K. Hikasa, K.C. Bowler, M. Bander, M. Ciuchini, M. Misiak, M.A. Shifman, P. Colangelo, P.A. Griffin, R. Ammar, R. Barbieri, R. Garisto, R. Grigjanus, R. Kahler, S. Coleman, T. Hayashi, T. Inami, V. Barger, V. Chernyak   +32 more
core   +1 more source

Letting Penguins Lead: Dynamic Modeling of Penguin Locations Guides Autonomous Robotic Sampling [PDF]

Oceanography, 2012
The southwest coast of Anvers Island harbors one of five major populations of Adélie penguins in the West Antarctic Peninsula (WAP; Fraser and Trivelpiece, 1996).
William Fraser, Mark A. Moline, Matthew J. Oliver, Ian Robbins, Donna Patterson, Oscar Schofield   +5 more
doaj  

The B -> pi K Puzzle and its Relation to Rare B and K Decays

, 2003
The Standard-Model interpretation of the ratios of charged and neutral B-> pi K rates, R_c and R_n, respectively, points towards a puzzling picture. Since these observables are affected significantly by colour-allowed electroweak (EW) penguins, this ``B -
556, A. J. Buras, Beneke, Buchalla, Buchalla, Buchalla, Buras, Buras, Buras, Buras, Buras, Buras, Buras, Buras, Buras, Ciuchini, Collaboration], Collaboration], Collaboration], F. Schwab, Fleischer, Fleischer, Fleischer, Fleischer, Fleischer, Gronau, Gronau, Grossman, Lipkin, Matias, Neubert, Neubert, R. Fleischer, S. Recksiegel   +33 more
core   +1 more source

Occurrence of Magellanic Penguins along the Northeast Brazilian Coast during 2008 Austral Winter

The Scientific World Journal, 2012
During the austral winter of 2008, thousands of penguins traveled to low latitudes along the South Atlantic coast of South America. The atmospheric and oceanic conditions from April to July 2008 may account for the penguins' unusual geographic ...
Renato Ramos da Silva, Janini Pereira, Clemente A. S. Tanajura, Carlos A. D. Lentini, Mauro Cirano, P. Dee Boersma, Regina R. Rodrigues   +6 more
doaj   +1 more source