Evidence for a New Resonance from Polarized Neutron-Proton Scattering

@article{Adlarson2014EvidenceFA,
  title={Evidence for a New Resonance from Polarized Neutron-Proton Scattering},
  author={Patrik Adlarson and W. Augustyniak and W. Bardan and M. Bashkanov and Florian Bergmann and Marcin Berłowski and Himani Bhatt and Markus Buescher and H. Calen. I. Ciepa and H. Clement and Daniel Coderre and Eryk Czerwiński and K. Demmich and Evgeni Doroshkevich and Ralf Engels and Andreas Erven and Wilhelm Erven and Wolfgang K. Eyrich and P. V. Fedorets and K. Foehl and Kjell Fransson and Frank Goldenbaum and P Goslawski and Ankita Goswami and K. Grigoyev and Carl Oscar Gullstroem and Florian Hauenstein and L. Heijkenskjoeld and Volker Hejny and Malgorzata Hodana and Bo Hoistad and N. Huesken and Anna Jany and Benedykt R Jany and Lucjan Jarczyk and T. Gunnar Johansson and B. Kamys and G{\"u}nter Kemmerling and F. A. Khan and Alfons Khoukaz and D. A. Kirrilov and St. Kistryn and H. Kleines and B. Kłos and M. Krapp and Wojciech Krzemień and Paweł Kulessa and Andrzej Kupś{\'c} and Kavita Lalwani and Daniel Lersch and Bernd Alfred Lorentz and Andrzej Magiera and Rudolf Maier and Pawel Marciniewski and Bohdan Mariański and M. Mikirtychiants and H. Peter Morsch and Paweł Moskal and H. Ohm and I. Sch{\"a}tti – Ozerianska and Elena P{\'e}rez del R{\'i}o and N. M. Piskunov and Paweł Podkopał and Dieter Prasuhn and Annette Pricking and Damian Pszczel and Krzysztof Pysz and A. Pysniak and Christoph Florian Redmer and James Ritman and A. Roy and Zbigniew Rudy and Siddhesh Sawant and Susan Schadmand and Th. Sefzick and V. Z. Serdyuk and Regina Siudak and T. Yu. Skorodko and Magdalena Skurzok and Jerzy Smyrski and V. S. Sopov and Rolf Stassen and Joanna Stepaniak and Elżbieta Stephan and G. Sterzenbach and Hans Stockhorst and Hans Stroeher and Antoni Szczurek and A. Taeschner and Andrzej Trzciński and Raghava Varma and G. J. Wagner and Magnus Wolke and Aleksandra Wrońska and P. Wuestner and Patrick Wurm and Akira Yamamoto and L. Yurev and Janusz Zabierowski and Marcin Zielinski and A. Zink and Jozef Zlomanczuk and P. Żupr{\'a}nski and Marian Zurek and Ron Workman and William J. Briscoe and Igor I. Strakovsky},
  journal={Physical Review Letters},
  year={2014},
  volume={112},
  pages={202301}
}
Exclusive and kinematically complete high-statistics measurements of quasifree polarized (n) over right arrowp scattering have been performed in the energy region of the narrow resonancelike struct ... 

Figures from this paper

Neutron-proton scattering in the context of the d*(2380) resonance
New data on quasifree polarized neutron-proton scattering in the region of the recently observed d* resonance structure are obtained by exclusive and kinematically complete high-statistics measuremExpand
The legacy of the hadron physics programme at COSY
A brief review is presented of some elements of the twenty years of hadronic physics research at the COoler SYnchrotron (COSY).
Poles in the SAID NN analysis
The SAID approach to partial-wave analysis of nucleon-nucleon scattering data is reviewed. This has been applied to recent COSY np scattering data. The appearance of poles (dibaryons) is discussed inExpand
ABC effect and resonance d*(2380)
A new state in the two-baryon system with mass 2380 MeV and width 80 MeV has been detected in the experiments at the Juelich Cooler Synchrotron (COSY). The new particle denoted now d*(2380) hasExpand
Deuteron analysing powers in deuteron–proton elastic scattering at 1.2 and 2.27 GeV
Abstract The vector ( A y d ) and tensor ( A x x and A y y ) analysing powers in deuteron–proton elastic scattering have been measured in the forward hemisphere at deuteron kinetic energies of T d =Expand
On the decays of d * (2380) in a constituent chiral quark model
The recent studies of the newly observed dibaryon resonance d*(2380) in a constituent chiral quark model are briefly summarized. An overall analysis of the obtained pionic decay widths, comparingExpand
On the Decays of d*(2380) in a Constituent Chiral Quark Model
The recent studies of the newly observed dibaryon resonance d*(2380) in a constituent chiral quark model are briefly summarized. An overall analysis of the obtained pionic decay widths, comparingExpand
Branching ratios for the decay of d*(2380)
Abstract.Based on measurements, the branching ratios for the decay of the recently discovered dibaryon resonance $d^{*}(2380)$ into two-pion production channels and into the np channel are evaluated.Expand
Sensitivity of the COSY dibaryon candidate to n p elastic scattering measurements
The case for a dibaryon resonance, appearing in np scattering, has support from a WASA-at-COSY measurement of the polarization quantity A_y over a center-of-mass energy region suggested by structuresExpand
Signatures of the d^{*}(2380) Hexaquark in d(γ,pn[over →]).
TLDR
The measured photon energy range of 300-700 MeV provides the first measurement of recoil neutron polarization at photon energies where the quark substructure of the deuteron plays a role, thereby providing important new constraints on photodisintegration mechanisms. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 36 REFERENCES
Updated analysis of NN elastic scattering to 3-GeV
A partial-wave analysis of $NN$ elastic scattering data has been updated to include a number of recent measurements. Experiments carried out at the Cooler Synchrotron (COSY) by the EDDA CollaborationExpand
Analyzing power in large-angle proton-neutron elastic scattering
The large-angle analyzing power A in proton-neutron elastic scattering at 2, 3, and 6 GeV/c with use of the polarized proton beam at the Argonne zero-gradient synchrotron and a liquid deuteriumExpand
Angular dependence of analyzing power in np elastic scattering between 0.312 and 1.10 GeV
Abstract We present a total of 427 np analyzing power data points in a large angular interval at 12 energies between 0.312 and 1.10 GeV. The SATURNE II polarized beam of free monochromatic neutronsExpand
Measurement of the Proton-Neutron Elastic-Scattering Polarization from 2 to 6 GeV/ c
Left-right asymmetries from a deuterium target in a polarized-proton beam were observed with the Argonne National Laboratory effective-mass spectrometer. Results were obtained for both pp and pnExpand
Isospin decomposition of the basic double-pionic fusion in the region of the ABC effect
Exclusive and kinematically complete high-statistics measurements of the basic double-pionic fusion reactions pn -> d pi(0)pi(0), pn -> d pi(+)pi(-) and pp -> d pi(+)pi(0) have been carrie ...
Excitation functions of the analyzing power in elastic proton-proton scattering from 0.45 to 2.5 GeV
Abstract.Excitation functions AN(plab,Θc.m.) of the analyzing power in elastic proton-proton scattering have been measured in an internal target experiment at the Cooler Synchrotron COSY with anExpand
The WASA detector facility at CELSIUS
The WASA 4 pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A unique feaExpand
Neutron-proton analyzing power measurements from 375 to 775 MeV.
TLDR
The shape of the energy dependence of A„(O„*,T„) at each angle was reliably determined in this experiment, since energy-dependent false asymmetries were considered to be negligible. Expand
Double-pionic fusion of nuclear systems and the "ABC" effect: approaching a puzzle by exclusive and kinematically complete measurements.
TLDR
The first exclusive and kinematically complete measurements of the most basic double-pionic fusion reaction pn-->dpi; {0}pi;{0} at beam energies of 1.03 and 1.35 GeV reveal the ABC effect to be a (pipi)_{I=L=0} channel phenomenon associated with both a resonancelike energy dependence in the integral cross section and the formation of a DeltaDelta system in the intermediate state. Expand
Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance?
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over the full energy region of the ABC effect, a pronouncedExpand
...
1
2
3
4
...