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= Spring 2015 Reactions/Hadrons Observation Status =
 
= Spring 2015 Reactions/Hadrons Observation Status =
  
This table summarizes the status of reactions and hadrons that have been seen.
+
This table summarizes the status of reactions and hadrons that have been seen. This table should be consulted together with the [[Calibration Dashboard]] and [[Physics Analysis]] pages.
  
 
''Last Updated'' -- 27 Feb. 2015
 
''Last Updated'' -- 27 Feb. 2015
Line 54: Line 54:
 
! style="text-align:center; width:100px;" | Predicted cross sections
 
! style="text-align:center; width:100px;" | Predicted cross sections
 
|-  
 
|-  
| K<sup>+</sup> &Lambda;
+
| <math>K^+ \Lambda</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> &Sigma;<sup>0</sup>
+
| <math>K^+ \Sigma^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| p &phi;
+
| <math>p \phi</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
| 580 &plusmn; 50 nb
+
| <math>580 \pm50</math> nb
 
|-  
 
|-  
| K<sup>+</sup> &Lambda;(1520)
+
| <math>K^+ \Lambda(1520)</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> &Sigma;(1385)
+
| <math>K^+ \Sigma(1385)</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> K<sup>+</sup> &Xi;<sup>-</sup>
+
| <math>K^+ K^+ \Xi^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> K<sub>S</sub> &Xi;<sup>0</sup>
+
| <math> K^+ K_S \Xi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> K<sup>+</sup> &Xi;<sup>-</sup>(1530)
+
| <math>K^+ K^+ \Xi^-(1530)</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
| no data
 
| no data
 
|-  
 
|-  
| K<sup>+</sup> K<sub>S</sub> &Xi;<sup>0</sup>(1530)
+
| <math>K^+ K_S \Xi^0(1530)</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
Line 107: Line 107:
 
! style="text-align:center; width:400px;" | Notes
 
! style="text-align:center; width:400px;" | Notes
 
|-  
 
|-  
| &pi;<sup>0</sup> &rarr; 2 &gamma;
+
| <math>\pi^0 \to 2 \gamma</math>
 
| style="background-color: green;" seen with good significance |
 
| style="background-color: green;" seen with good significance |
| See Matt, Justin's studies
+
| See Matt, Will M., Justin's studies
 
|-  
 
|-  
| &eta; &rarr; 2 &gamma;
+
| <math>\eta \to 2 \gamma</math>
| style="background-color: red;" not seen |
+
| style="background-color: red;" not seen. BR = 39.4% |
 
|  
 
|  
 
|-  
 
|-  
| &eta; &rarr; &pi;<sup>+</sup> &pi;<sup>-</sup> &pi;<sup>0</sup>
+
| <math>\eta \to 3 \pi^0</math>
| style="background-color: red;" not seen |
+
| style="background-color: red;" not seen. BR = 32.7% |
 +
|
 +
|-  
 +
| <math>\eta \to \pi^+ \pi^- \pi^0</math>
 +
| style="background-color: red;" not seen. BR = 22.9% |
 
|  
 
|  
 
|-  
 
|-  
| &omega; &rarr; &pi;<sup>+</sup> &pi;<sup>-</sup> &pi;<sup>0</sup>
+
| <math>\omega \to \pi^+ \pi^- \pi^0</math>
| style="background-color: green;" seen |
+
| style="background-color: yellow;" seen |
 
| see Justin's studies
 
| see Justin's studies
 
|-  
 
|-  
| &omega; &rarr; &gamma; &pi;<sup>0</sup>
+
| <math>\omega \to \gamma; \pi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
| see Justin's studies
+
|  
 
|-  
 
|-  
| &rho; &rarr; &pi;<sup>+</sup> &pi;<sup>-</sup>
+
| <math>\rho^0 \to \pi^+ \pi^-</math>
 
| style="background-color: green;" seen |
 
| style="background-color: green;" seen |
 
| see Justin's studies
 
| see Justin's studies
 
|-  
 
|-  
| &eta;' &rarr; &pi;<sup>+</sup> &pi;<sup>-</sup> &eta;
+
| <math>\eta' \to \pi^+ \pi- \eta</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &eta;' &rarr; 2&gamma;
+
| <math>\eta' \to 2\gamma</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
|
 
|-
 
 
 
|-  
 
|-  
 
| <math>\Delta</math> baryons
 
| <math>\Delta</math> baryons
Line 154: Line 155:
 
! style="text-align:center; width:400px;" | Notes
 
! style="text-align:center; width:400px;" | Notes
 
|-  
 
|-  
| K<sup>+</sup>
+
| <math>K^+</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| K<sup>-</sup>
+
| <math>K^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| K<sub>S</sub>
+
| <math>K_S \to \pi^+ \pi^-</math>
| style="background-color: green;" seen |
+
| style="background-color: green;" seen. |
| see Kei's studies
+
| BR = 69.2%. See Kei's studies.
 +
|
 +
|-
 +
| <math>K_S \to \pi^0 \pi^0</math>
 +
| style="background-color: red;" not seen. |
 +
| BR = 30.69%.
 
|-  
 
|-  
| &phi;
+
| <math>\phi </math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Lambda;
+
| <math>\Lambda</math>
 
| style="background-color: green;" seen |
 
| style="background-color: green;" seen |
 
| see Kei's studies
 
| see Kei's studies
 
|-  
 
|-  
| &Sigma;<sup>+</sup> &rarr; p &pi;<sup>0</sup>
+
| <math>\Sigma^+ \to p \pi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Sigma;<sup>+</sup> &rarr; (n) &pi;<sup>+</sup>
+
| <math>\Sigma^+ \to (n) \pi^+</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Sigma;<sup>0</sup>
+
| <math>\Sigma^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Sigma;<sup>-</sup> &rarr; (n) &pi;<sup>-</sup>
+
| <math>\Sigma^- \to (n) \pi^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Sigma;<sup>0</sup>(1385) &rarr; &Lambda; &gamma;
+
| <math>\Sigma^0(1385) \to \Lambda \gamma</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Lambda;<sup>0</sup>(1520) &rarr; p &pi;<sup>-</sup>
+
| <math>\Lambda(1520) \to p \pi^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>-</sup> &rarr; &Lambda; &pi<sup>-</sup>
+
| <math>\Xi^- \to \Lambda \pi^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>0</sup> &rarr; &Lambda; &pi<sup>0</sup>
+
| <math>\Xi^0 \to \Lambda \pi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>-</sup>(1530) &rarr; &Xi;<sup>-</sup> &pi;<sup>0</sup>
+
| <math>\Xi^-(1530) \to \Xi^- \pi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>-</sup>(1530) &rarr; &Xi;<sup>0</sup> &pi;<sup>-</sup>
+
| <math>\Xi^-(1530) \to \Xi^0 \pi^-</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>0</sup>(1530) &rarr; &Xi;<sup>-</sup> &pi;<sup>+</sup>
+
| <math>\Xi^0(1530) \to \Xi^- \pi^+</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
| &Xi;<sup>0</sup>(1530) &rarr; &Xi;<sup>0</sup> &pi;<sup>0</sup>
+
| <math>\Xi^0(1530) \to \Xi^0 \pi^0</math>
 
| style="background-color: red;" not seen |
 
| style="background-color: red;" not seen |
 
|  
 
|  
 
|-  
 
|-  
 
|}
 
|}

Latest revision as of 22:23, 6 March 2015

Spring 2015 Reactions/Hadrons Observation Status

This table summarizes the status of reactions and hadrons that have been seen. This table should be consulted together with the Calibration Dashboard and Physics Analysis pages.

Last Updated -- 27 Feb. 2015

Reactions and Hadrons:

    • red - Not seen yet
    • yellow - Seen, but not with 5 σ significance
    • green - Seen with >5 σ significance

(5 σ is rather arbitrary, we should quantify when possible)

Non-strange Reactions

Reaction Status Notes Predicted cross sections
p\pi ^{+}\pi ^{-} See Justin's studies 13.5 ± 0.5 μb
p\omega See Justin's studies. ω → π+ π- π0 1.9 ± 0.3 μb
p\pi ^{+}\pi ^{-}\pi ^{0} See Justin's studies no data
p\eta Should be seen in η → 2 γ, η → π+ π- π0 no data
\pi ^{+}\pi ^{+}\pi ^{-}n XXX μb

Strange Reactions

Reaction Status Notes Predicted cross sections
K^{+}\Lambda no data
K^{+}\Sigma ^{0} no data
p\phi 580\pm 50 nb
K^{+}\Lambda (1520) no data
K^{+}\Sigma (1385) no data
K^{+}K^{+}\Xi ^{-} no data
K^{+}K_{S}\Xi ^{0} no data
K^{+}K^{+}\Xi ^{-}(1530) no data
K^{+}K_{S}\Xi ^{0}(1530) no data

Non-strange Hadrons

Hadron, decay mode Status Notes
\pi ^{0}\to 2\gamma See Matt, Will M., Justin's studies
\eta \to 2\gamma
\eta \to 3\pi ^{0}
\eta \to \pi ^{+}\pi ^{-}\pi ^{0}
\omega \to \pi ^{+}\pi ^{-}\pi ^{0} see Justin's studies
\omega \to \gamma ;\pi ^{0}
\rho ^{0}\to \pi ^{+}\pi ^{-} see Justin's studies
\eta '\to \pi ^{+}\pi -\eta
\eta '\to 2\gamma
\Delta baryons

Strange Hadrons

Hadron, decay mode Status Notes
K^{+}
K^{-}
K_{S}\to \pi ^{+}\pi ^{-} BR = 69.2%. See Kei's studies.
K_{S}\to \pi ^{0}\pi ^{0} BR = 30.69%.
\phi
\Lambda see Kei's studies
\Sigma ^{+}\to p\pi ^{0}
\Sigma ^{+}\to (n)\pi ^{+}
\Sigma ^{0}
\Sigma ^{-}\to (n)\pi ^{-}
\Sigma ^{0}(1385)\to \Lambda \gamma
\Lambda (1520)\to p\pi ^{-}
\Xi ^{-}\to \Lambda \pi ^{-}
\Xi ^{0}\to \Lambda \pi ^{0}
\Xi ^{-}(1530)\to \Xi ^{-}\pi ^{0}
\Xi ^{-}(1530)\to \Xi ^{0}\pi ^{-}
\Xi ^{0}(1530)\to \Xi ^{-}\pi ^{+}
\Xi ^{0}(1530)\to \Xi ^{0}\pi ^{0}