scholarly journals Invariant mass distributions for heavy quark-antiquark pairs in deep inelastic electroproduction

1995 ◽  
Vol 353 (4) ◽  
pp. 535-540 ◽  
Author(s):  
B.W. Harris ◽  
J. Smith
Keyword(s):  
Heavy Quark ◽  
Invariant Mass ◽  
Mass Distributions

scholarly journals Top squark searches using dilepton invariant mass distributions and bino-Higgsino dark matter at the LHC

2013 ◽  
Vol 87 (9) ◽  
Author(s):  
Bhaskar Dutta ◽  
Teruki Kamon ◽  
Nikolay Kolev ◽  
Kuver Sinha ◽  
Kechen Wang ◽  
...  
Keyword(s):  
Dark Matter ◽  
Invariant Mass ◽  
Top Squark ◽  
Dilepton Invariant Mass ◽  
Mass Distributions

scholarly journals Role of scalar $$a_0(980)$$ in the single Cabibbo suppressed process $$D^+ \rightarrow \pi ^{+} \pi ^{0} \eta $$

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
Man-Yu Duan ◽  
Jun-Ya Wang ◽  
Guan-Ying Wang ◽  
En Wang ◽  
De-Min Li
Keyword(s):  
Invariant Mass ◽  
Mass Distributions ◽  
Unitary Approach ◽  
Chiral Unitary Approach ◽  
Free Parameters ◽  
Cabibbo Suppressed ◽  
Dalitz Plots

AbstractTaking into account that the scalar $$a_0(980)$$ a 0 ( 980 ) can be dynamically generated from the pseudoscalar-pseudoscalar interaction within the chiral unitary approach, we have studied the single Cabibbo suppressed process $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η . We find clear peaks of $$a_0(980)^+$$ a 0 ( 980 ) + and $$a_0(980)^0$$ a 0 ( 980 ) 0 in the $$\pi ^+\eta $$ π + η and $$\pi ^0\eta $$ π 0 η invariant mass distributions, respectively. The predicted Dalitz plots of $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η also manifest the significant signals for $$a_0(980)^+$$ a 0 ( 980 ) + and $$a_0(980)^0$$ a 0 ( 980 ) 0 states. The uncertainties of the results due to the free parameters are also discussed. Our study shows that the process $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η can be used to explore the nature of the scalar $$a_0(980)$$ a 0 ( 980 ) , thus we encourage the experimental physicists to measure this reaction with more precision.

DIELECTRON SPECTROSCOPY IN COLD NUCLEAR MATTER

2011 ◽  
Vol 26 (03n04) ◽  
pp. 737-740 ◽  
Author(s):  
◽  
MICHAEL WEBER
Keyword(s):  
Vector Meson ◽  
Nuclear Matter ◽  
Invariant Mass ◽  
Meson Production ◽  
Yield Ratio ◽  
Vector Meson Production ◽  
Production Threshold ◽  
Light Vector Meson ◽  
Mass Distributions ◽  
Light Vector

We report recent data on e + e - pair emission in proton nucleus collisions at energies slightly above the light vector meson production threshold. Invariant mass distributions for the p + Nb system at Ekin = 3.5 GeV/c2 show a clear ρ/ω signal and are compared to data from elementary p + p reactions. We observe a constant π0/ω yield ratio for both systems.

The initial single chiral particle emission mechanism and its predictions of charmonium-like structures

2014 ◽  
Vol 29 ◽  
pp. 1460223
Author(s):  
Dian-Yong Chen
Keyword(s):  
Invariant Mass ◽  
Mass Spectra ◽  
Particle Emission ◽  
Emission Mechanism ◽  
Mass Distributions ◽  
Invariant Mass Spectra

We propose a new mechanism, named as the initial single chiral particle emission mechanism, to explain the charged Zb(10610) and Zb(10650) observed in the ϒ(5S) → π+π-ϒ(nS), π+π-hb(mP), (n = 1 ~ 3, m = 1, 2) processes. After successfully interpreting the charge Zb structures, we extend this mechanism to study the process of the dipion transitions between the higher charmonia/charmonium-like state and the lower charmonia. In these transitions process, we predict two charmonium analogs of the charged Zb. After the observations of Zc(3900) by the BESIII and the Belle Collaborations, we reproduce the dipion and the J/ψπ invariant mass distributions simultaneously with the initial single chiral particle emission mechanism. In addition, we predict some enhancements in the J/ψK invariant mass spectra in the dikaon decay of the higher charmonium and the charmonium like states.

scholarly journals The minimum invariant mass — A technique for heavy quark searches at collider energy

1984 ◽  
Vol 140 (3-4) ◽  
pp. 259-263 ◽  
Author(s):  
E.L. Berger ◽  
D. DiBitonto ◽  
M. Jacob ◽  
W.J. Stirling
Keyword(s):  
Heavy Quark ◽  
Invariant Mass ◽  
Collider Energy

scholarly journals Measurement of the invariant mass distributions for the reaction at excess energy of

2010 ◽  
Vol 684 (1) ◽  
pp. 11-16 ◽  
Author(s):  
P. Klaja ◽  
P. Moskal ◽  
E. Czerwiński ◽  
R. Czyżykiewicz ◽  
A. Deloff ◽  
...  
Keyword(s):  
Invariant Mass ◽  
Excess Energy ◽  
Mass Distributions

scholarly journals Invariant-mass distributions for the pp $ \rightarrow$ pp$ \eta$ reaction at Q = 10 MeV

2009 ◽  
Vol 43 (2) ◽  
pp. 131-136 ◽  
Author(s):  
P. Moskal ◽  
R. Czyżykiewicz ◽  
E. Czerwiński ◽  
D. Gil ◽  
D. Grzonka ◽  
...  
Keyword(s):  
Invariant Mass ◽  
Mass Distributions

Hadron reactions study with the CMD-3 detector in e+e− collisions

2016 ◽  
Vol 31 (33) ◽  
pp. 1630038
Author(s):  
E. P. Solodov ◽  
A. N. Amirkhanov ◽  
A. V. Anisenkov ◽  
V. M. Aulchenko ◽  
V. S. Banzarov ◽  
...  
Keyword(s):  
Energy Range ◽  
Invariant Mass ◽  
Energy Dependence ◽  
Cross Section ◽  
Cross Sections ◽  
Final States ◽  
Preliminary Results ◽  
Mass Distributions ◽  
Electron Positron ◽  
Intermediate States

The CMD-3 detector has been taking data since December 2010 at the VEPP-2000 electron–positron collider. The collected data sample corresponds to about 60 inverse picobarn of integrated luminosity in the c.m. energy range from 0.32 GeV to 2.0 GeV. Preliminary results of the analysis of various hadronic cross-sections, in particular, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], 3[Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] are presented. The processes with multi-hadron final states have several intermediate states which have to be taken into account to correctly describe the angular and invariant mass distributions, as well as cross-section energy dependence.

Invariant mass distributions of theγn→pπ−π0reaction

1999 ◽  
Vol 60 (5) ◽  
Author(s):  
A. Zabrodin ◽  
G. Audit ◽  
R. Beck ◽  
A. Braghieri ◽  
N. D’Hose ◽  
...  
Keyword(s):  
Invariant Mass ◽  
Mass Distributions
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