Results 1 to 10 of about 852,300 (362)

CP violation at colliders [PDF]

Pramana 45:S263-S276,1995, 1994
The prospects of experimental detection of $CP$ violation at $e^+e^-$ and $pp/p\overline{p}$ colliders are reviewed. After a general discussion on the quantities which can measure $CP$ violation and on the implications of the $CPT$ theorem, various ...
A. Pilaftsis, A. Pilaftsis, A. Soni, B. Ananthanarayan, C. P. Burgess, C. R. Schmidt, D. Buskulic, D. Chang, D. Choudhury, D. Choudhury, F. Abe, F. Hoogeveen, G. L. Kane, I. Bigi, J. F. Donoghue, J. P. Ma, L. Wolfenstein, N. Rius, P.D. Acton, S. Goozovat, Saurabh D Rindani, W. Bernreuther, W. Bernreuther, W. Bernreuther, W. Bernreuther   +24 more
core   +8 more sources

CP violation and modular symmetries [PDF]

Phys.Rev.D64:056005,2001, 2001
We reconsider the origin of CP violation in fundamental theory. Existing string models of spontaneous CP violation make ambiguous predictions, due to the arbitrariness of CP transformation and the apparent non-invariance of the results under duality.
A. G. Cohen, A. Strominger, D. Bailin, D. Bailin, D. Bailin, D. Bailin, D. Bailin, F. J. Botella, G. C. Branco, G. Eyal, H. P. Nilles, J. Bernabéu, J. Giedt, J. Lauer, J.-P. Derendinger, J.-P. Derendinger, K. Choi, K. Choi, L. E. Ibáñez, L. E. Ibáñez, L. E. Ibáñez, L. M. Krauss, M. Brhlik, M. Brhlik, M. Brhlik, M. Cvetič, M. Dine, M. Dine, M. Kobayashi, P. Hořava, R. Dijkgraaf, S. A. Abel, S. A. Abel, S. Ferrara, S. Weinberg, T. D. Lee, T. D. Lee, T. Ibrahim, T. Kobayashi, Thomas Dent, V. A. Rubakov, Y. Kizukuri, Z. Lalak   +42 more
core   +3 more sources

Leptogenesis from low energy CP violation [PDF]

Journal of High Energy Physics, 2019
We revisit the possibility of producing the observed baryon asymmetry of the Universe via thermal leptogenesis, where CP violation comes exclusively from the low-energy phases of the neutrino mixing matrix.
K. Moffat, S. Pascoli, S. T. Petcov, J. Turner   +3 more
doaj   +2 more sources

CP Violation in a Multi-Higgs Doublet Model [PDF]

Pramana 45:S73-S83,1995, 1994
We study CP violation in a multi-Higgs doublet model based on a $S_3 \times Z_3$ horizontal symmetry. We consider two mechanisms for CP violation in this model: a) CP violation due to complex Yukawa couplings; and b) CP violation due to scalar ...
A. Buras, B. McKellar, C. Jarlskog, D. Chang, E. Ma, H.-Y. Cheng, J. Donoghue, J. Gasser, J. Gunion, J. Trampetic, K. Abdullah, K. Smith, L. Lavoura, L. Wolfenstein, M. Kobayashi, M.E. Pospelov, N. G. Deshpande, N.G. Deshpande, N.G. Deshpande, N.G. Deshpande, S. Weinberg, S. Weinberg, S.M. Barr, T. Inami, Xiao-Gang He, Y. Yamanaka   +25 more
core   +3 more sources

CP violation from string theory [PDF]

Physics Letters B, 2018
We identify a natural way to embed CP symmetry and its violation in string theory. The CP symmetry of the low energy effective theory is broken by the presence of heavy string modes.
Hans Peter Nilles, Michael Ratz, Andreas Trautner, Patrick K.S. Vaudrevange   +3 more
doaj   +2 more sources

CP-Violation in Bosonic Sector of SM with two Higgs Doublets [PDF]

, 1993
We investigate CP-violation effects in the bosonic sector of the Standard Model (SM) with two Higgs doublets. First we calculate the mass eigenstates of the physical neutral Higgses for small but nonzero CP-violation parameter $\xi_{\ast}$, and then a ...
A. Cohen, A. Mendez, A. Pilaftsis, B. Grza̧dkowski, B. Grza̧dkowski, D. Atwood, D. Chang, G. Cvetič, G. Cvetič, H. Georgi, J. F. Gunion, J. Werle, L. McLerran, M. Nowakowski, M. Nowakowski, N. Turok, P. Langacker, R. Decker, R. N. Cahn, S. Petcov, S. Weinberg, S. Weinberg, W. Bernreuther   +22 more
core   +2 more sources

Studies of charmless B decays including CP violation effects [PDF]

arXiv, 2013
The latest experimental results in charmless B decays are presented with a focus on CP violation measurements. These include the first observation of CP violation in B_s decays, evidence for CP violation in charmless three-body B+ decays, branching ...
Nasteva, Irina
core   +1 more source

CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD

European Physical Journal C: Particles and Fields, 2017
In a perturbative QCD approach we study the direct CP violation in the pure annihilation decay process of $$\bar{B}^0_{s}\rightarrow \pi ^+\pi ^-\pi ^+\pi ^-$$ B ¯ s 0 → π + π - π + π - induced by the $$\rho $$ ρ and $$\omega $$ ω double resonance effect.
Gang Lü, Ye Lu, Sheng-Tao Li, Yu-Ting Wang   +3 more
doaj   +3 more sources

The seesaw path to leptonic CP violation [PDF]

European Physical Journal C: Particles and Fields, 2017
Future experiments such as SHiP and high-intensity $$e^+ e^-$$ e + e - colliders will have a superb sensitivity to heavy Majorana neutrinos with masses below $$M_Z$$ M Z .
A. Caputo, P. Hernandez, M. Kekic, J. López-Pavón, J. Salvado   +4 more
doaj   +2 more sources

CP violation in charm [PDF]

EPJ Web of Conferences, 2022
The existence of CP violation in the decays of strange and beauty mesons is very well established experimentally. On the contrary, CP violation in the decays of charmed particles has been elusive for a long time and has been observed for the first time ...

doaj   +1 more source