Results 31 to 40 of about 659,223 (180)

Measurement of the branching fraction of the $${{B} ^0} {\rightarrow }{{D} ^+_{s}} {{\pi } ^-} $$ B 0 → D s + π - decay

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
A branching fraction measurement of the $${{B} ^0} {\rightarrow }{{D} ^+_{s}} {{\pi } ^-} $$ B 0 → D s + π - decay is presented using proton–proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of $$5.0 ...
R. Aaij   +959 more
doaj   +1 more source

The geometry of $\Pi$-invertible sheaves

open access: yes, 2014
Using the fact that $\Pi$-invertible sheaves can be interpreted as locally free sheaves of modules for the super skew field $\mathbb{D}$, we give a new construction of the $\Pi$-projective superspace $\mathbb{P}^n_{\Pi, B}$ over affine $k$ superschemes ...
Kwok, Stephen
core   +1 more source

Observation of the Cabibbo-suppressed decay Xi_c+ -> p K- pi+

open access: yes, 1999
We report the first observation of the Cabibbo-suppressed charm baryon decay Xi_c+ -> p K- pi+. We observe 150 +- 22 events for the signal. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly ...
A. A. Kozhevnikov   +129 more
core   +1 more source

Using an amplitude analysis to measure the photon polarisation in $$B \rightarrow K\pi \pi \gamma $$ B→Kππγ decays

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
A method is proposed to measure the photon polarisation parameter $$\lambda _{\gamma }$$ λγ in $${{b}} \!\rightarrow {s} {\gamma } $$ b→sγ transitions using an amplitude analysis of $$B\!\rightarrow K\pi \pi {\gamma } $$ B→Kππγ decays.
V. Bellée   +6 more
doaj   +1 more source

The S-wave resonance contributions in the $$B^{0}_{s}$$ B s 0 decays into $$\psi (2S,3S)$$ ψ ( 2 S , 3 S ) plus pion pair

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
The three-body decays $$B^0_s \rightarrow \psi (2S,3S) \pi ^+ \pi ^-$$ B s 0 → ψ ( 2 S , 3 S ) π + π - are studied based on the perturbative QCD approach.
Zhou Rui, Ya Li, Wen-Fei Wang
doaj   +1 more source

Permutations destroying arithmetic progressions in finite cyclic groups [PDF]

open access: yes, 2015
A permutation \pi of an abelian group G is said to destroy arithmetic progressions (APs) if, whenever (a,b,c) is a non-trivial 3-term AP in G, that is c-b=b-a and a,b,c are not all equal, then (\pi(a),\pi(b),\pi(c)) is not an AP.
Hegarty, Peter, Martinsson, Anders
core   +2 more sources

Model independent determination of the light-cone wave functions for exclusive processes [PDF]

open access: yes, 1998
We present a method to compute, by numerical simulations of lattice QCD, the light-cone wave functions which enter exclusive processes at large momentum transfer, such as electromagnetic elastic scatterings, or exclusive semi-leptonic decays as B -> pi ...
Aglietti, U.   +5 more
core   +2 more sources

Implications of chiral symmetry on $S$-wave pionic resonances and the scalar charmed mesons

open access: yes, 2019
The chiral symmetry of QCD requires energy-dependent pionic strong interactions at low energies. This constraint, however, is not fulfilled by the usual Breit--Wigner parameterization of pionic resonances, leading to masses larger than the real ones.
Du, Meng-Lin   +2 more
core   +1 more source

Study the $$B^{0}_{(s)}$$ B ( s ) 0 decays into $$\phi $$ ϕ and a scalar or vector meson

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In the present work, we investigate the decays of $$B^{0}_{(s)} \rightarrow \phi \pi ^{+}\pi ^{-}$$ B ( s ) 0 → ϕ π + π - with the final state interaction based on the chiral unitary approach. In the final state interaction of the $$\pi ^+\pi ^-$$ π + π -
Hiwa A. Ahmed   +3 more
doaj   +1 more source

Dalitz plot analysis and branching fraction measurement of D+ and Ds+ -> pi+pi-pi+

open access: yes, 2000
Fermilab fixed target experiment E791 obtained a sample of $1172 \pm 61$ events of $D^+ \to \pi^- \pi^+ \pi^+$ and 848 $\pm 44$ events of $D_s^+ \to \pi^- \pi^+ \pi^+$ decays.
Aitala   +5 more
core   +1 more source

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