Log in

Relevant bibliographies by topics / Direct CP Asymmetry / Journal articles

To see the other types of publications on this topic, follow the link: Direct CP Asymmetry.

Journal articles on the topic 'Direct CP Asymmetry'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 40 journal articles for your research on the topic 'Direct CP Asymmetry.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

MOHANTA, RUKMANI. "STUDY OF DIRECT CP ASYMMETRY IN B+→K0π+". Modern Physics Letters A 15, № 09 (2000): 599–615. http://dx.doi.org/10.1142/s021773230000061x.

Full text

Abstract:

The direct CP asymmetry (aCP) for the process B+→π+K0 is studied including the contributions arising from both the QCD and electroweak penguins and the long range inelastic final state interactions (IFSI). The usually neglected space-like penguins and the annihilation contributions are also taken into account in our analysis. The next-to-leading order low energy effective Hamiltonian and BSW model are used to evaluate the weak transition matrix elements. The effect of space-like and annihilation diagrams are studied using the Lepage and Brodsky model. We found that as a result of FSI, the CP a

APA, Harvard, Vancouver, ISO, and other styles

2

Zyla, P. "SEARCH FOR DIRECT CP VIOLATION IN HYPERON DECAYS." International Journal of Modern Physics A 16, supp01b (2001): 684–86. http://dx.doi.org/10.1142/s0217751x01007790.

Full text

Abstract:

Fermilab experiment E871, HyperCP, is designed to search for evidence of direct CP violation in Cascade and Lambda hyperon decays. The asymmetry of the angular distribution of the proton in the Lambda helicity frame between Ξ-→Λ+π-, Λ→p+π- and the charge-conjugate decays, will be measured. During the 1997 and 1999 fixed target runs at Fermilab HyperCP collaboration collected billions of Cascade and anti-Cascade decays that would make it possible to probe this asymmetry at the 10-4 statistical level. The status of the data analysis is described.

APA, Harvard, Vancouver, ISO, and other styles

3

GENG, C. Q., and Y. K. HSIAO. "DIRECT CP AND T VIOLATION IN BARYONIC B DECAYS." International Journal of Modern Physics A 23, no. 21 (2008): 3290–95. http://dx.doi.org/10.1142/s0217751x08041992.

Full text

Abstract:

We review the direct CP and T violation in the three-body baryonic B decays in the standard model. In particular, we emphasize that the direct CP violating asymmetry in [Formula: see text] is around 22% and the direct T violating asymmetry in [Formula: see text] can be as large as 12%, which are accessible to the current B factories at KEK and SLAC as well as SuperB and LHCb.

APA, Harvard, Vancouver, ISO, and other styles

4

ASATRYAN, H. H., H. M. ASATRIAN, G. K. YEGHIYAN, and G. K. SAVVIDY. "DIRECT CP ASYMMETRY IN INCLUSIVE RARE B-DECAYS IN 2HDM." International Journal of Modern Physics A 16, no. 23 (2001): 3805–22. http://dx.doi.org/10.1142/s0217751x01005079.

Full text

Abstract:

The direct CP asymmetry in the inclusive B → Xdγ and B → Xde+e-decays is investigated in the two-Higgs doublet extension of the Standard Model (2HDM). The investigation is performed in the lowest nonvanishing order of the perturbation theory using the existing restrictions on the 2HDM parameters space. It is shown that the direct CP asymmetry in the B → Xdγ decay can deviate significantly from the Standard Model predictions. In the presence of only one source of CP violation (the CKM matrix weak phase) aCP(B → Xdγ) can have the sign opposite to that in the SM. The new source of CP violation ca

APA, Harvard, Vancouver, ISO, and other styles

5

GIRI, ANJAN K., та RUKMANI MOHANTA. "DIRECT CP VIOLATION AND NEW PHYSICS EFFECTS IN THE DECAY MODE B+→ϕK+". Modern Physics Letters A 19, № 25 (2004): 1903–18. http://dx.doi.org/10.1142/s021773230401518x.

Full text

Abstract:

We study the direct CP violation effect in the decay mode B+→ϕK+. This decay mode is dominated by the loop induced [Formula: see text] penguin diagram with a tiny contribution from the annihilation diagram. Therefore, the standard model expectation of direct CP violation is negligibly small. Using QCD factorization approach we find the CP asymmetry in the standard model to be at percent level. We consider then two scenarios beyond the standard model, the model with an extra vector-like down quark (VLDQ) and the R-parity violating supersymmetric model (RPV) and show that the direct CP violating

APA, Harvard, Vancouver, ISO, and other styles

6

Bar-Shalom, Shaouly, Gad Eilam, Michael Gronau та Jonathan L. Rosner. "Second-order direct CP asymmetry in B(s)→Xℓν". Physics Letters B 694, № 4-5 (2011): 374–79. http://dx.doi.org/10.1016/j.physletb.2010.10.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

LÜ, GANG, ZHEN-HUA ZHANG, XIU-YING LIU та LI-YING ZHANG. "NEW RESULT OF DIRECT CP VIOLATION IN B → π+π-π+π-". International Journal of Modern Physics A 26, № 17 (2011): 2899–912. http://dx.doi.org/10.1142/s0217751x11053626.

Full text

Abstract:

In the framework of factorization, based on the first-order of isospin violation, we study direct CP violation in the decay of [Formula: see text] including the effect of ρ–ω mixing. The CP violation depends strongly on Cabibbo–Kobayashi–Maskawa (CKM) matrix elements and the effective parameter, Nc. Recently, the experimental data for the branching ratios of [Formula: see text] are accurate and we can give the strong constraint on the range of Nc. We find that the CP violating asymmetry is large and ranges from -82% to -98% via ρ–ω mixing mechanism when the invariant mass of the π+π- pair is i

APA, Harvard, Vancouver, ISO, and other styles

8

Akeroyd, A. G., Y. Y. Keum та S. Recksiegel. "Effect of supersymmetric phases on the direct CP asymmetry of B→Xdγ". Physics Letters B 507, № 1-4 (2001): 252–59. http://dx.doi.org/10.1016/s0370-2693(01)00455-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Chen, C. H., and C. Q. Geng. "Unparticles and charge parity violation." Canadian Journal of Physics 86, no. 4 (2008): 641–44. http://dx.doi.org/10.1139/p07-182.

Full text

Abstract:

Unparticles proposed by Georgi carry charge parity (CP) conserving phases in their propagators. In this paper, we review our recent works on CP violation due to the peculiar phases of unparticles. We use the decays Bd → π+ π– and Bd → [Formula: see text]–[Formula: see text]+ as the illustrators to show the influences of these phases on the direct CP asymmetries. In particular, we emphasize that if a nonzero CP asymmetry is found in Bd → [Formula: see text]–[Formula: see text]+, it is definitely an indication of the existence of unparticles.PACS Nos.: 12.60.–i 11.30.Er 13.20.He 14.40.Nd

APA, Harvard, Vancouver, ISO, and other styles

10

Betti, Federico. "A Review of CP Violation Measurements in Charm at LHCb." Symmetry 13, no. 8 (2021): 1482. http://dx.doi.org/10.3390/sym13081482.

Full text

Abstract:

The LHCb experiment has been able to collect the largest sample ever produced of charm-hadron decays, performing a number of measurements of observables related to CP violation in the charm sector. In this document, the most recent results from LHCb on the search of direct CP violation in D0→Ks0Ks0, D(s)+→h+π0 and D(s)+→h+η decays are summarised, in addition to the most precise measurement of time-dependent CP asymmetry in D0→h+h− decays and the first observation of mass difference between neutral charm-meson eigenstates.

APA, Harvard, Vancouver, ISO, and other styles

11

Barshay, Saul, та Georg Kreyerhoff. "The possibility of a sizable, direct CP-violating asymmetry in B∓→K∓η". Physics Letters B 578, № 3-4 (2004): 330–34. http://dx.doi.org/10.1016/j.physletb.2003.10.066.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Akeroyd, A. G., та S. Recksiegel. "Direct CP asymmetry of B→Xd,sγ in a model with vector quarks". Physics Letters B 525, № 1-2 (2002): 81–88. http://dx.doi.org/10.1016/s0370-2693(01)01419-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

BEL’KOV, A. A., D. EBERT, G. BOHM, A. SCHAALE, and A. V. LANYOV. "ANALYSIS OF NONLEPTONIC KAON DECAYS USING CHIRAL-LOOP EXPANSION." International Journal of Modern Physics A 07, no. 20 (1992): 4757–89. http://dx.doi.org/10.1142/s0217751x92002155.

Full text

Abstract:

The amplitudes of the decays K→2π and K→3π have been calculated within the chiral Lagrangian approach including chiral loops. The phenomenological structure of the effective weak meson interaction has then been fixed by experimental data. We estimate the CP asymmetry for decay probabilities and slope parameters in K±→π±π±π∓ and K±→π0π0π± decays using data on Re(ε′/ε). The modification of the Li-Wolfenstein relation for the direct CP-violation parameter in [Formula: see text] decays is also discussed.

APA, Harvard, Vancouver, ISO, and other styles

14

SCADRON, MICHAEL D., GEORGE RUPP та EEF VAN BEVEREN. "CP VIOLATION AND ΔI=1/2 ENHANCEMENT FOR K→ππ, K→ππγ WEAK DECAYS". Modern Physics Letters A 19, № 30 (2004): 2267–78. http://dx.doi.org/10.1142/s0217732304015567.

Full text

Abstract:

Data indicate that ΔI=3/2 transitions account for 4.5–4.7% of both CP conserving and CP violating K→2π decays, as well as CP conserving radiative K→ππγ processes. Observed K→ππγ/ππ branching ratios are shown to scale near α/π or α/2π. The KL–KS mixing angle ϕ and the semileptonic weak-rate asymmetry δ are reviewed, and theory is shown to be consistent with data. Also, K→2π ΔI=1/2 dominance is studied in the context of the chiral constituent quark model, displaying again excellent agreement with data. Finally, indirect and direct kaon CP violation (CPV) are successfully described in the framewo

APA, Harvard, Vancouver, ISO, and other styles

15

Khodjamirian, Alexander, та Alexey A. Petrov. "Direct CP asymmetry in D→π−π+ and D→K−K+ in QCD-based approach". Physics Letters B 774 (листопад 2017): 235–42. http://dx.doi.org/10.1016/j.physletb.2017.09.070.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Akeroyd, A. G., та S. Recksiegel. "Direct CP asymmetry of b → sγ and b → dγ in models beyond the Standard Model". Nuclear Physics B - Proceedings Supplements 111, № 1-3 (2002): 276–78. http://dx.doi.org/10.1016/s0920-5632(02)01720-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Greub, C., H. Simma та D. Wyler. "Branching ratio and direct CP-violating rate asymmetry of the rare decays and B → ϱγ". Nuclear Physics B 434, № 1-2 (1995): 39–55. http://dx.doi.org/10.1016/0550-3213(94)00463-o.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

GENG, C. Q., and Y. K. HSIAO. "T VIOLATION IN BARYONIC B DECAYS." International Journal of Modern Physics A 21, no. 04 (2006): 897–900. http://dx.doi.org/10.1142/s0217751x06032265.

Full text

Abstract:

We study T violation in the three-body charmless baryonic decay of [Formula: see text] through the T-odd triple product correlation in the standard model. We find that the T violating asymmetry is 10%, which is accessible to the current B factories at KEK and SLAC, while the CP violating one 1.1%. We emphasize that this triple product correlation would be the first measurable direct T violating effect predicted in the standard model.

APA, Harvard, Vancouver, ISO, and other styles

19

KUTTER, PAUL E. "MEASUREMENT OF CP ASYMMETRY IN $B^0 \to f_0 K^0_S$, B0 → ϕK0 AND $B^0 \to K^+K^-K^0_S$ DECAYS". International Journal of Modern Physics A 20, № 15 (2005): 3531–34. http://dx.doi.org/10.1142/s0217751x0502690x.

Full text

Abstract:

We present results on time-dependent CP asymmetries in [Formula: see text] and B0 → K+K-K0. The measurements use a data sample consisting of approximately [Formula: see text] and 227(B0 → K+K-K0) million B-meson pairs recorded at the ϒ(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. From a time-dependent maximum likelihood fit, we measure for [Formula: see text]: the mixing-induced CP violation parameter [Formula: see text] and the direct CP violation parameter Cf0K = -0.24 ± 0.31 ( stat ) ± 0.15 ( syst ). From a simultaneous fit to [Formula: see text] and [Formula

APA, Harvard, Vancouver, ISO, and other styles

20

WARBURTON, ANDREAS. "BRANCHING FRACTIONS AND CP ASYMMETRIES IN TWO-BODY NONLEPTONIC CHARMLESS b-HADRON DECAYS." International Journal of Modern Physics A 20, no. 15 (2005): 3554–58. http://dx.doi.org/10.1142/s0217751x05026960.

Full text

Abstract:

Relative branching fractions of [Formula: see text] decays (where h, h′ = K or π) and the direct CP asymmetry [Formula: see text] in the [Formula: see text] mode are measured with 179 ± 11 pb -1 of data collected at [Formula: see text] using the CDF II detector at the Fermilab Tevatron [Formula: see text] collider. The first branching-fraction measurement of a [Formula: see text] meson to two pseudoscalars, [Formula: see text], and a search for the baryon mode [Formula: see text] are also presented, in addition to branching-fraction limits on the rare channels [Formula: see text], [Formula: se

APA, Harvard, Vancouver, ISO, and other styles

21

Bernabéu, José. "Discrete symmetries with neutral mesons." EPJ Web of Conferences 166 (2018): 00004. http://dx.doi.org/10.1051/epjconf/201816600004.

Full text

Abstract:

Symmetries, and Symmetry Breakings, in the Laws of Physics play a crucial role in Fundamental Science. Parity and Charge Conjugation Violations prompted the consideration of Chiral Fields in the construction of the Standard Model, whereas CP-Violation needed at least three families of Quarks leading to Flavour Physics. In this Lecture I discuss the Conceptual Basis and the present experimental results for a Direct Evidence of Separate Reversal-in-Time T, CP and CPT Genuine Asymmetries in Decaying Particles like Neutral Meson Transitions, using Quantum Entanglement and the Decay as a Filtering

APA, Harvard, Vancouver, ISO, and other styles

22

DAS, PRASANTA KUMAR. "FINDING γ FROM THE η-η′ MIXING WITHIN QCD FACTORIZATION". International Journal of Modern Physics A 22, № 14n15 (2007): 2493–511. http://dx.doi.org/10.1142/s0217751x07036543.

Full text

Abstract:

We propose a method to determine the weak CP violating angle γ by analyzing the charmless nonleptonic B→(η, η′)K decay within the QCD factorization framework. We obtain constraints in the γ–θ (the octet-singlet mixing angle in η-η′ sector) contour plane by using the world average data of direct CP-asymmetry Acp(B→(η, η′)K) and the branching ratio BR (B+→(η, η′)K+). For Acp(B→η(η′)K) = -0.33±0.12(0.031±0.021), we find that γ lies in between 60°(20°) and 160°(160°) for θ = -21.3° for μ = mb/2, whereas for μ = mband the same θ, it lies in between 75°(20°) and 150°(160°). We discuss the two mixing

APA, Harvard, Vancouver, ISO, and other styles

23

Hargreaves, J. C., A. Abe-Ouchi, and J. D. Annan. "Linking glacial and future climates through an ensemble of GCM simulations." Climate of the Past 3, no. 1 (2007): 77–87. http://dx.doi.org/10.5194/cp-3-77-2007.

Full text

Abstract:

Abstract. In this paper we explore the relationships between the modelled climate of the Last Glacial Maximum (LGM) and that for doubled atmospheric carbon dioxide compared to the pre-industrial climate by analysing the output from an ensemble of runs from the MIROC3.2 GCM. Our results lend support to the idea in other recent work that the Antarctic is a useful place to look for historical data which can be used to validate models used for climate forecasting of future greenhouse gas induced climate changes, at local, regional and global scales. Good results may also be obtainable using tropic

APA, Harvard, Vancouver, ISO, and other styles

24

Aaij, R., C. Abellan Beteta, A. Adametz та ін. "Measurement of the ratio of branching fractions B(B0→K⁎0γ)/B(Bs0→ϕγ) and the direct CP asymmetry in B0→K⁎0γ". Nuclear Physics B 867, № 1 (2013): 1–18. http://dx.doi.org/10.1016/j.nuclphysb.2012.09.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

on behalf of the TUCAN and HeXeEDM Collaborations, Florian Kuchler. "Searches for Electric Dipole Moments—Overview of Status and New Experimental Efforts." Universe 5, no. 2 (2019): 56. http://dx.doi.org/10.3390/universe5020056.

Full text

Abstract:

Searches for permanent electric dipole moments (EDMs) of fundamental particles, atoms and molecules are promising experiments to constrain and potentially reveal beyond Standard Model (SM) physics. A non-zero EDM is a direct manifestation of time-reversal (T) violation, and, equivalently, violation of the combined operation of charge-conjugation (C) and parity inversion (P). Identifying new sources of CP violation can help to solve fundamental puzzles of the SM, e.g., the observed baryon-asymmetry in the Universe. Theoretical predictions for magnitudes of EDMs in the SM are many orders of magn

APA, Harvard, Vancouver, ISO, and other styles

26

DATTA, ALAKABHA, and DAVID LONDON. "TRIPLE-PRODUCT CORRELATIONS IN B→V1V2 DECAYS AND NEW PHYSICS." International Journal of Modern Physics A 19, no. 15 (2004): 2505–44. http://dx.doi.org/10.1142/s0217751x04018300.

Full text

Abstract:

In this paper we examine T-violating triple-product correlations (TP's) in B→V1V2 decays. TP's are excellent probes of physics beyond the standard model (SM) for two reasons: (i) within the SM, most TP's are expected to be tiny, and (ii) unlike direct CP asymmetries, TP's are not suppressed by the small strong phases which are expected in B decays. TP's are obtained via the angular analysis of B→V1V2. In a general analysis based on factorization, we demonstrate that the most promising decays for measuring TP's in the SM involve excited final-state vector mesons, and we provide estimates of suc

APA, Harvard, Vancouver, ISO, and other styles

27

GIORGI, M. A. "RECENT RESULTS ON CP VIOLATION IN B DECAY." International Journal of Modern Physics A 20, no. 22 (2005): 5069–79. http://dx.doi.org/10.1142/s0217751x05028594.

Full text

Abstract:

This paper, 40 years after the discovery of CP violation 1 in neutral kaon decay in the famous experiment of Brookhaven, presents the most recent results on the CP violation in the b sector as come out of the experiments BABAR and BELLE that are taking data since 1999 at PEPII and KEKB e+e- asymmetric B -Factories operating at the center of mass energy corresponding to the mass of the ϒ4S. After their initial discovery of the CP violation and the measurement of sin2β in 2001 2, now is the time of the observation of direct CP violation by BABAR, confirmed by BELLE, the initial measurements of α

APA, Harvard, Vancouver, ISO, and other styles

28

CUI, JIAN-WEI, HONG-JIAN HE, LAN-CHUN LÜ, and FU-RONG YIN. "GeV SCALE ASYMMETRIC DARK MATTER FROM MIRROR UNIVERSE: DIRECT DETECTION AND LHC SIGNATURES." International Journal of Modern Physics: Conference Series 10 (January 2012): 21–34. http://dx.doi.org/10.1142/s2010194512005727.

Full text

Abstract:

Mirror universe is a fundamental way to restore parity symmetry in weak interactions. It naturally provides the lightest mirror nucleon as a unique GeV-scale asymmetric dark matter particle candidate. We conjecture that the mirror parity is respected by the fundamental interaction Lagrangian, and its possible soft breaking arises only from non-interaction terms in the gauge-singlet sector. We realize the spontaneous mirror parity violation by minimizing the vacuum Higgs potential, and derive the corresponding Higgs spectrum. We demonstrate that the common origin of CP violation in the visible

APA, Harvard, Vancouver, ISO, and other styles

29

Ganopolski, Andrey, and Victor Brovkin. "Simulation of climate, ice sheets and CO<sub>2</sub> evolution during the last four glacial cycles with an Earth system model of intermediate complexity." Climate of the Past 13, no. 12 (2017): 1695–716. http://dx.doi.org/10.5194/cp-13-1695-2017.

Full text

Abstract:

Abstract. In spite of significant progress in paleoclimate reconstructions and modelling of different aspects of the past glacial cycles, the mechanisms which transform regional and seasonal variations in solar insolation into long-term and global-scale glacial–interglacial cycles are still not fully understood – in particular, in relation to CO2 variability. Here using the Earth system model of intermediate complexity CLIMBER-2 we performed simulations of the co-evolution of climate, ice sheets, and carbon cycle over the last 400 000 years using the orbital forcing as the only external forcin

APA, Harvard, Vancouver, ISO, and other styles

30

Cabeza, A., M. A. G. Aranda, M. Martinez-Lara, S. Bruque, and J. Sanz. "Ab initio powder structure determination and thermal behavior of a new lead(II) phenylphosphonate, Pb(O3PC6H5)." Acta Crystallographica Section B Structural Science 52, no. 6 (1996): 982–88. http://dx.doi.org/10.1107/s0108768196006829.

Full text

Abstract:

The crystal structure of Pb(O3PC6H5) has been solved from X-ray powder diffraction data. Crystal data: triclinic, a = 13.6907 (5), b = 9.3327 (4), c = 7.0432 Å, α = 106.188 (3), β = 94.927, γ = 96.977°, V = 851.04 (8) Å3, space group P{\bar 1} and Z = 4. Initial positional parameters for Pb atoms were obtained from direct methods using 556 structure factors in the 2θ range 9–63°. All remaining non-H atoms were located from successive difference-Fourier maps. The final agreement factors were R wp = 0.055, Rp = 0.042 and RF = 0.017. There are 22 atoms in the asymmetric part of the unit cell and

APA, Harvard, Vancouver, ISO, and other styles

31

Delepine, David, Gaber Faisel, and Carlos A. Ramirez. "Exploring new physics contributions to CP violation in $$\tau ^- \rightarrow K^-\pi ^0\nu _{\tau } $$." European Physical Journal C 81, no. 4 (2021). http://dx.doi.org/10.1140/epjc/s10052-021-09150-4.

Full text

Abstract:

AbstractA general analysis of possible violation of CP in processes like $$\tau \rightarrow K\pi \nu $$ τ → K π ν , for unpolarized $$\tau $$ τ is presented. In this paper, we derive the new contributions to the effective Hamiltonian governs $$\vert \Delta S \vert =1$$ | Δ S | = 1 semileptonic tau decays in the framework of two Higgs doublet model with generic Yukawa structure and Leptoquarks models. Within these models, we list all operators, in the effective Hamiltonian and provide analytical expression for their corresponding Wilson coefficients. Moreover, we analyze the role of the differe

APA, Harvard, Vancouver, ISO, and other styles

32

Alonso, Rodrigo, Cristofero Fraser-Taliente, Chris Hays, and Michael Spannowsky. "Prospects for direct CP tests of hqq interactions." Journal of High Energy Physics 2021, no. 8 (2021). http://dx.doi.org/10.1007/jhep08(2021)167.

Full text

Abstract:

Abstract We study the prospects for probing the CP structure of hqq interactions using the decays of the lightest baryon Λq formed in the quark’s hadronization. The low yields of reconstructible events make it unlikely for tests to be performed with the next generation of colliders. In h → b$$ \overline{b} $$ b ¯ → Λb$$ \overline{\Lambda} $$ Λ ¯ b decays a CP-sensitive distribution could be measured with a high-luminosity e+e− collider, while in both h → b$$ \overline{b} $$ b ¯ → Λb$$ \overline{\Lambda} $$ Λ ¯ b and h → c$$ \overline{c} $$ c ¯ → Λc$$ \overline{\Lambda} $$ Λ ¯ c decays such a d

APA, Harvard, Vancouver, ISO, and other styles

33

Abazov, V. M., B. Abbott, B. S. Acharya та ін. "Measurement of the direct CP violating charge asymmetry in B±→μ±νμD0 decays". Physical Review D 95, № 3 (2017). http://dx.doi.org/10.1103/physrevd.95.031101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Delepine, David, Gaber Faisel, and Carlos A. Ramirez. "Direct CP violation in $$D^+ \rightarrow K^0({\bar{K}}^0) \pi ^+$$ decays as a probe for new physics." European Physical Journal C 80, no. 7 (2020). http://dx.doi.org/10.1140/epjc/s10052-020-8150-0.

Full text

Abstract:

Abstract In this paper we investigate CP violation in charged decays of D meson. Particularly, we study the direct CP asymmetry of the Cabibbo favored non-leptonic $$D^+ \rightarrow {\bar{K}}^0 \pi ^+$$D+→K¯0π+ and the doubly Cabibbo-suppressed decay mode $$D^+ \rightarrow K^0 \pi ^+$$D+→K0π+ within standard model, two Higgs doublet model with generic Yukawa structure and left right symmetric models. In the standard model, we first derive the contributions from box and di-penguin diagrams contributing to their amplitudes which are relevant to the generation of the weak phases essential for non

APA, Harvard, Vancouver, ISO, and other styles

35

Barger, Vernon, Kaoru Hagiwara, and Ya-Juan Zheng. "Probing the top Yukawa coupling at the LHC via associated production of single top and Higgs." Journal of High Energy Physics 2020, no. 9 (2020). http://dx.doi.org/10.1007/jhep09(2020)101.

Full text

Abstract:

Abstract We study Higgs boson production associated with single top or anti-top via t-channel weak boson exchange at the LHC. The process is an ideal probe of the top quark Yukawa coupling, because we can measure the relative phase of htt and hWW couplings, thanks to the significant interference between the two amplitudes. By choosing the emitted W momentum along the polar axis in the th ($$ \overline{t}h $$ t ¯ h ) rest frame, we obtain the helicity amplitudes for all the contributing subprocesses analytically, with possible CP phase of the Yukawa coupling. We study the azimuthal asymmetry be

APA, Harvard, Vancouver, ISO, and other styles

36

Konar, Partha, Ananya Mukherjee, Abhijit Kumar Saha, and Sudipta Show. "A dark clue to seesaw and leptogenesis in a pseudo-Dirac singlet doublet scenario with (non)standard cosmology." Journal of High Energy Physics 2021, no. 3 (2021). http://dx.doi.org/10.1007/jhep03(2021)044.

Full text

Abstract:

Abstract We propose an appealing alternative scenario of leptogenesis assisted by dark sector which leads to the baryon asymmetry of the Universe satisfying all theoretical and experimental constraints. The dark sector carries a non minimal set up of singlet doublet fermionic dark matter extended with copies of a real singlet scalar field. A small Majorana mass term for the singlet dark fermion, in addition to the typical Dirac term, provides the more favourable dark matter of pseudo-Dirac type, capable of escaping the direct search. Such a construction also offers a formidable scope to radiat

APA, Harvard, Vancouver, ISO, and other styles

37

Hsu, C. L., D. Dossett, M. E. Sevior та ін. "Measurement of branching fraction and direct CP asymmetry in charmless B+→K+K−π+ decays at Belle". Physical Review D 96, № 3 (2017). http://dx.doi.org/10.1103/physrevd.96.031101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Kaliyar, A. B., P. Behera, G. B. Mohanty та ін. "Measurements of branching fraction and direct CP asymmetry in B±→KS0KS0K± and a search for B±→KS0KS0π±". Physical Review D 99, № 3 (2019). http://dx.doi.org/10.1103/physrevd.99.031102.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Beneke, Martin, Christoph Bobeth, and Yu-Ming Wang. "B d,s → $$ \gamma \mathrm{\ell}\overline{\mathrm{\ell}} $$ decay with an energetic photon." Journal of High Energy Physics 2020, no. 12 (2020). http://dx.doi.org/10.1007/jhep12(2020)148.

Full text

Abstract:

Abstract We calculate the differential branching fraction, lepton forward-backward asymmetry and direct CP asymmetry for Bd,s → $$ \gamma \mathrm{\ell}\overline{\mathrm{\ell}} $$ γ ℓ ℓ ¯ decays with an energetic photon. We employ factorization methods, which result in rigorous next-to-leading order predic- tions in the strong coupling at leading power in the large-energy/heavy-quark expansion, together with estimates of power corrections and a resonance parameterization of sub- leading power form factors in the region of small lepton invariant mass q2. The Bd,s → $$ \gamma \mathrm{\ell}\overli

APA, Harvard, Vancouver, ISO, and other styles

40

Schlicksup, Christopher John, Joseph Che-Yen Wang, Samson Francis, et al. "Hepatitis B virus core protein allosteric modulators can distort and disrupt intact capsids." eLife 7 (January 29, 2018). http://dx.doi.org/10.7554/elife.31473.

Full text

Abstract:

Defining mechanisms of direct-acting antivirals facilitates drug development and our understanding of virus function. Heteroaryldihydropyrimidines (HAPs) inappropriately activate assembly of hepatitis B virus (HBV) core protein (Cp), suppressing formation of virions. We examined a fluorophore-labeled HAP, HAP-TAMRA. HAP-TAMRA induced Cp assembly and also bound pre-assembled capsids. Kinetic and spectroscopic studies imply that HAP-binding sites are usually not available but are bound cooperatively. Using cryo-EM, we observed that HAP-TAMRA asymmetrically deformed capsids, creating a heterogene

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!