scholarly journals Final state interactions and new physics inB→πKdecays

1998 ◽  
Vol 57 (7) ◽  
pp. 4290-4300 ◽  
Author(s):  
Adam F. Falk ◽  
Alexander L. Kagan ◽  
Yosef Nir ◽  
Alexey A. Petrov
Keyword(s):  
New Physics ◽  
Final State ◽  
Final State Interactions

scholarly journals Polarization in (quasi-)two-body decays and new physics

2019 ◽  
Vol 79 (12) ◽  
Author(s):  
Z. J. Ajaltouni ◽  
E. Di Salvo
Keyword(s):  
Time Reversal ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Covariant Formalism ◽  
Final State ◽  
Leptonic Decays ◽  
Weak Decays ◽  
The Standard Model ◽  
Final State Interactions ◽  
Major Attention

AbstractWe consider two-body and quasi-two-body decays of the type $$f_1 \rightarrow f_2 B$$f1→f2B, where $$f_1$$f1 and $$f_2$$f2 are spin-1/2 fermions and B a spin-0 or spin-1 boson. After recalling the non-covariant formalism for decay amplitudes, we derive the expression of the differential decay width and of the polarizations of the final spinning particles, both on- and off-shell. We find an intriguing geometrical interpretation of the results about the polarization. We also illustrate some methods for measuring the polarizations of the resonances and for optimizing data analysis. Then we propose applications to semi-leptonic weak decays, with a major attention to the T-odd component of the polarization; this may help to find, simultaneously, possible time-reversal violations and hints to physics beyond the standard model. We suggest also a CPT test. Last, we discuss some T-odd observables for the production process of $$f_1$$f1 and for the study of the strong final state interactions of non-leptonic decays.

EXTRACTING THE CKM PHASE ANGLE γ(≡ φ3) FROM ISOSPIN ANALYSIS IN B → Kπ DECAY

2008 ◽  
Vol 23 (21) ◽  
pp. 3300-3303
Author(s):  
C. S. KIM ◽  
SECHUL OH ◽  
YEO WOONG YOON
Keyword(s):  
Phase Angle ◽  
New Physics ◽  
Theoretical Assumption ◽  
Final State ◽  
Cp Asymmetry ◽  
Breaking Effect ◽  
Plot Analysis ◽  
Hadronic Uncertainty ◽  
Final State Interactions ◽  
Current Experimental Data

We propose a new method to extract the CKM phase angle γ(≡ φ3) from the isospin analysis in B → Kπ decays only. Unlike previously proposed methods, we do not employ flavor SU (3) symmetry, so that this method is free from the hadronic uncertainty coming from the SU (3) breaking effect. Neither we adopt any Dalitz-plot analysis, which may involve multiple strong phases and large final state interactions. Since no theoretical assumption, except the isospin relations, is imposed on B → Kπ decays, this method will work well, regardless of possible new physics effects unless the isospin relations do not hold. Since the mixing induced CP asymmetry SKSπ0 plays a crucial role in this method, more precise measurement on SKSπ0 in future experiments will be greatly helpful to extract γ accurately. Using current experimental data for B → Kπ including SKSπ0, we extract γ within [Formula: see text] or [Formula: see text].

scholarly journals Highly boosted Higgs bosons and unitarity in vector-boson fusion at future hadron colliders

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Wolfgang Kilian ◽  
Sichun Sun ◽  
Qi-Shu Yan ◽  
Xiaoran Zhao ◽  
Zhijie Zhao
Keyword(s):  
Pair Production ◽  
Vector Boson ◽  
New Physics ◽  
Higgs Bosons ◽  
Vector Boson Fusion ◽  
Final State ◽  
Proton Proton ◽  
Effective Lagrangian ◽  
Discovery Potential ◽  
New Interactions

Abstract We study the observability of new interactions which modify Higgs-pair production via vector-boson fusion processes at the LHC and at future proton-proton colliders. In an effective-Lagrangian approach, we explore in particular the effect of the operator $$ {h}^2{W}_{\mu \nu}^a{W}^{a,\mu \nu} $$ h 2 W μν a W a , μν , which describes the interaction of the Higgs boson with transverse vector-boson polarization modes. By tagging highly boosted Higgs bosons in the final state, we determine projected bounds for the coefficient of this operator at the LHC and at a future 27 TeV or 100 TeV collider. Taking into account unitarity constraints, we estimate the new-physics discovery potential of Higgs pair production in this channel.

Two-Proton Final-State Interactions in the ReactionsD(He3, t)2pandHe3(d, t)2pat a Center-of-Mass Energy of 21 MeV

1967 ◽  
Vol 18 (23) ◽  
pp. 1007-1009 ◽  
Author(s):  
B. J. Morton ◽  
E. E. Gross ◽  
J. J. Malanify ◽  
A. Zucker
Keyword(s):  
Center Of Mass ◽  
Mass Energy ◽  
Final State ◽  
Center Of Mass Energy ◽  
Final State Interactions

Reflectance spectra of ZnCr2Se4spinel from 4 to 100 eV measured with synchrotron radiation: Band structure, covalency, and final-state interactions

1982 ◽  
Vol 25 (8) ◽  
pp. 5486-5491 ◽  
Author(s):  
S. Suga ◽  
S. Shin ◽  
M. Taniguchi ◽  
K. Inoue ◽  
M. Seki ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Band Structure ◽  
Reflectance Spectra ◽  
Final State ◽  
Radiation Band ◽  
Final State Interactions

Accessing the Final-State Interactions in the Semi-inclusive Two-Pion Annihilation at the Future Tau-Charm Factory

1997 ◽  
Vol 14 (1) ◽  
pp. 13-16
Author(s):  
Yang Jian-jun ◽  
Lu Wei ◽  
Li Guang-lie
Keyword(s):  
Final State ◽  
The Future ◽  
Final State Interactions

scholarly journals Role of Final State Interactions in Y0* Production

1976 ◽  
Vol 56 (1) ◽  
pp. 151-156 ◽  
Author(s):  
C. P. Singh
Keyword(s):  
Final State ◽  
Final State Interactions

Final-state interactions and quasi-free scattering in the 2H(α, pα)n reaction

1974 ◽  
Vol 222 (3) ◽  
pp. 429-444 ◽  
Author(s):  
T. Rausch ◽  
H. Zell ◽  
D. Wallenwein ◽  
W. Von Witsch
Keyword(s):  
Final State ◽  
Final State Interactions

SEARCH FOR NEW PHYSICS IN eμX DATA AT THE TEVATRON USING SLEUTH: A QUASI-MODEL-INDEPENDENT SEARCH STRATEGY FOR NEW PHYSICS

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 888-890
Author(s):  
◽  
BRUCE KNUTESON
Keyword(s):  
Standard Model ◽  
Search Strategy ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Final States ◽  
Final State ◽  
The Standard Model ◽  
Model Independent

We present a quasi-model-independent search for physics beyond the standard model. We define final states to be studied, and construct a rule that identifies a set of variables appropriate for any particular final state. A new algorithm ("Sleuth") searches for regions of excess in the space of those variables and quantifies the significance of any detected excess. After demonstrating the sensititvity of the method, we apply it to the semi-inclusive channel eμX collected in ≈108 pb -1 of [Formula: see text] collisions at [Formula: see text] at the DØ experiment at the Fermilab Tevatron. We find no evidence of new high pT physics in this sample.

Electron scattering on two-neutron halo nuclei with full inclusion of final state interactions

2005 ◽  
Vol 72 (4) ◽  
Author(s):  
S. N. Ershov ◽  
B. V. Danilin ◽  
J. S. Vaagen
Keyword(s):  
Electron Scattering ◽  
Halo Nuclei ◽  
Neutron Halo ◽  
Final State ◽  
Full Inclusion ◽  
Final State Interactions
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