Results 51 to 60 of about 300,267 (230)

Multiple Parton Scattering in Nuclei: Heavy Quark Energy Loss and Modified Fragmentation Functions [PDF]

, 2004
Multiple scattering, induced radiative energy loss and modified fragmentation functions of a heavy quark in nuclear matter are studied within the framework of generalized factorization in perturbative QCD. Modified heavy quark fragmentation functions and
Adams, Adcox, Adcox, Adler, Adler, Airapetian, Aivazis, Altarelli, Armesto, Back, Baier, Baier, Baier, Ben-Wei Zhang, Binnewies, Cacciari, Cacciari, Djordjevic, Djordjevic, Djordjevic, Djordjevic, Dokshitzer, Dokshitzer, Enke Wang, Gribov, Guo, Guo, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Gyulassy, Jacobs, Kniehl, Kretzer, Kretzer, Landau, Luo, Luo, Luo, Mele, Migdal, Muccifora, Mueller, Osborne, Peterson, Salgado, van Neerven, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wiedemann, Wiedemann, Xin-Nian Wang, Zakharov, Zhang, Zhang   +61 more
core   +2 more sources

The $$\varvec{\Lambda _b\rightarrow \Lambda (\rightarrow p\pi ^-)\mu ^+\mu ^-}$$ Λ b → Λ ( → p π - ) μ + μ - decay in the aligned two-Higgs-doublet model

European Physical Journal C: Particles and Fields, 2017
The rare baryonic decay $$\Lambda _b\rightarrow \Lambda (\rightarrow p\pi ^-)\mu ^+\mu ^-$$ Λ b → Λ ( → p π - ) μ + μ - provides valuable complementary information compared to the corresponding mesonic $$b\rightarrow s\mu ^+\mu ^-$$ b → s μ + μ ...
Quan-Yi Hu, Xin-Qiang Li, Ya-Dong Yang
doaj   +1 more source

Probing QCD critical fluctuations from intermittency analysis in relativistic heavy-ion collisions

Physics Letters B, 2020
It is shown that intermittency, a self-similar correlation with respect to the size of the phase space volume, is sensitive to critical density fluctuations of baryon numbers in a system belonging to the three-dimensional (3D) Ising universality class ...
Jin Wu, Yufu Lin, Yuanfang Wu, Zhiming Li   +3 more
doaj   +1 more source

Off-forward quark-quark correlation function [PDF]

Physical Review D, 2006
The properties of the non-forward quark-quark correlation function are examined. We derive constraints on the correlation function from the transformation properties of the fundamental fields of QCD occurring in its definition. We further develop a method to construct an ansatz for this correlator.
openaire   +2 more sources

Bottom-quark fragmentation in top-quark decay [PDF]

Nuclear Physics B, 2002
We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms $\sim\log (m_t^2/m_b^2)$. We show the b-energy distribution, which we compare with the exact ${\cal O} ( _S)$ result for a massive b quark.
Corcella, Gennaro, Mitov, Alexander D.
openaire   +2 more sources

Plate tectonics in the microscopy realm: Molecular insights into morphological variability of Peridinium willei (Peridiniales, Dinophyceae)

TAXON, EarlyView.
Abstract Freshwater Peridinium willei (Peridiniaceae) is globally distributed, but reports linking its morphologies with DNA sequence data remain scarce. The taxonomy of the species, and its infraspecific taxa, remain ambiguous due to the lack of DNA sequence data for the original and type material.
Arwin Ahmadpur, Dana C. Eisenhöld, Eva Facher, Marc Gottschling, Selin Gürkan, Borislava P. Hristova, Johanna Knechtel, Paula M.E. Lehner, Hemingway Nyoka, Paweł M. Owsianny, Chiara Peters, Hélène Reich, Eva Reicheneder, Alexander Rockinger, Cecilia Teodora Satta, Marina Stark, F. Sara Uslu, Anže Žerdoner Čalasan   +17 more
wiley   +1 more source

Light hadron spectrum in three-flavor QCD with O(a)-improved Wilson quark action [PDF]

, 2003
We report on a calculation of the light hadron spectrum and quark masses in three-flavor dynamical QCD using the non-perturbatively O(a)-improved Wilson quark action and a renormalization-group improved gauge action. Simulations are carried out on a 16^3
:, Aoki, S., Collaboration, JLQCD, CP-PACS, Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishikawa, T., Ishizuka, N., Iwasaki, Y., Kanaya, K., Kaneko, T., Kuramashi, Y., Okawa, M., Taniguchi, N., Tsutsui, N., Ukawa, A., Yoshie, T.   +17 more
core   +2 more sources

Up quark masses from down quark masses [PDF]

Physics Letters B, 2006
11 pages, 1 figure.
MASINA, Isabella, C. A. Savoy
openaire   +3 more sources

Record phenological responses to climate change in three sympatric penguin species

Journal of Animal Ecology, EarlyView.
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez, Alex Kacelnik, Fiona M. Jones, Jefferson T. Hinke, Michael J. Dunn, Andrea Raya Rey, Heather J. Lynch, Kate Owen, Tom Hart   +8 more
wiley   +1 more source

Non-perturbative structure of the polarized nucleon sea

, 2003
We investigate the flavour and quark-antiquark structure of the polarized nucleon by calculating the parton distribution functions of the nucleon sea using the meson cloud model. We find that the SU(2) flavor symmetry in the light antiquark sea and quark-
A. I. Signal, A.I. Signal, A.I. Signal, A.W. Schreiber, A.W. Schreiber, A.W. Thomas, A.W. Thomas, B. Adeva, B. Adeva, B. Adeva, B. Adeva, B. Dressler, B. Holzenkamp, C. Boros, D.I. Diakonov, D.I. Diakonov, E.A. Hawker, F.G. Cao, F.G. Cao, F.G. Cao, Fu-Guang Cao, G.T. Garvey, H. Holtmann, J. Ashman, J. Ashman, J. Blumlein, J. Ellis, J. Ellis, K. Abe, K. Ackerstaff, M. Arneodo, M. Arneodo, M. Fukugita, M. Gluck, M. Glück, M. Hirai, P. Amaudraz, P.L. Anthony, P.V. Pobylitsa, R. Machleidt, R.S. Towell, S. Kumano, S.J. Dong, T. DeGrand, W. Melnitchouk, W. Melnitchouk, Y. Goto   +46 more
core   +1 more source