Results 71 to 80 of about 572,881 (348)

Correlations of Electrons from Heavy Flavor Decay with Hadrons in Au+Au and p+p Collisions

, 2011
Measurements of electrons from the decay of open-heavy flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled p+p collisions.
Aamodt K (ALICE), Adare A (PHENIX), Anne M Sickles, Casalderrey-Solana J   +3 more
core   +1 more source

Form Factor Relations for Heavy-to-Light Transitions [PDF]

, 1995
Assuming simple properties of the spectator particle in weak decays the form factors of hadronic current matrix elements are shown to be related to a single universal function.
Alam, Albrecht, Aleksan, Ali, Ball, Ball, Bauer, Bauer, Berthold Stech, Boyd, Browder, Browder, Burdman, Colangelo, Colangelo, Eichten, Georgi, Gourdin, Isgur, Isgur, Isgur, Narison, Neubert, Neubert, Neubert, Neubert, Neubert, Neubert, Schroeder, Witherell   +29 more
core   +2 more sources

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Axion-like-particle decay in strong electromagnetic backgrounds

Journal of High Energy Physics, 2019
The decay of a massive pseudoscalar, scalar and U(1) boson into an electron-positron pair in the presence of strong electromagnetic backgrounds is calculated.
B. King, B. M. Dillon, K. A. Beyer, G. Gregori   +3 more
doaj   +1 more source

Determination of $|V_{cb}|$ from the polarization of vector meson in the semileptonic decay of $B$ and $B_c$ meson

, 1998
Since the degree of polarization of the vector particle in semileptonic decay strongly influences the decay width of the particles, it can be used as a measure of CKM matrix elements.
Choi, Myoung-Taek, Kim, Jae Kwan
core   +1 more source

Cosmological perturbations from varying masses and couplings [PDF]

, 2003
We study the evolution of perturbations during the domination and decay of a massive particle species whose mass and decay rate are allowed to depend on the expectation value of a light scalar field.
A. Guth, A. Mazumdar, C. Gordon, C. Gordon, C. L. Bennett, D. F. Mota, D. H. Lyth, D. H. Lyth, D. N. Spergel, D. Wands, E. Komatsu, E. Komatsu, Filippo Vernizzi, G. Dvali, G. Hinshaw, G. Jungman, H. Kodama, H. V. Peiris, J. García Bellido, J. Khoury, J. M. Bardeen, J. Valiviita, K. A. Malik, K. Enqvist, K. Enqvist, L. Amendola, L. Amendola, L. Amendola, L. Verde, M. S. Turner, M. Sasaki, M. Zaldarriaga, N. Bartolo, N. Bartolo, N. Bartolo, P. Criminelli, S. Matarrese, S. Matarrese, S. Tsujikawa, T. Damour, T. Damour, T. Damour, T. Hamazaki, T. Moroi, T. Moroi, T. Moroi, V. F. Mukhanov, V. F. Mukhanov   +47 more
core   +2 more sources

Three-Body Entanglement in Particle Decays

Physical Review Letters
6 pages, 3 figures, a version published in ...
Kazuki Sakurai, Michael Spannowsky
openaire   +3 more sources

Cosmological particle decays at finite temperature

Physical Review D, 2015
21 pages, 5 figures, v2: version to appear in ...
Ho, Chiu Man, Scherrer, Robert J.
openaire   +3 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

On the Perturbative Stability of Quantum Field Theories in de Sitter Space

, 2011
We use a field theoretic generalization of the Wigner-Weisskopf method to study the stability of the Bunch-Davies vacuum state for a massless, conformally coupled interacting test field in de Sitter space.
A Dolgov, A Higuchi, AD Dolgov, AD Dolgov, AL Fetter, AM Polyakov, AM Polyakov, AM Polyakov, CP Burgess, D Boyanovsky, D Boyanovsky, D Boyanovsky, D Boyanovsky, D Boyanovsky, D Boyanovsky, D Boyanovsky, D Marolf, D Seery, D. Boyanovsky, E Alvarez, E Mottola, E Mottola, ET Akhmedov, ET Akhmedov, ET Akhmedov, G Geshnizjani, I Antoniadis, I Antoniadis, I Antoniadis, J Bros, J Bros, J Bros, LH Ford, LR Abramo, LRW Abramo, LRW Abramo, M Gell-Mann, M Giannotti, M Sargent III, MO Scully, NC Tsamis, NC Tsamis, NC Tsamis, NP Myhrvold, NP Myhrvold, R. Holman, SB Giddings, SP Miao, SS Schweber, TM Janssen, V Weisskopf, VF Mukhanov, W Louisell   +52 more
core   +1 more source