FIX: handle None parity in parity_conservation (#211)

* DOC: add `IPython` to intersphinx inventory * DX: update "🐛 Bug" label in allowed PR labels * MAINT: remove `Sigma` from Lc to pKpi test Suppressed by diquark dynamics (isospin)
ComPWA · Apr 6, 2023 · 70eff78 · 70eff78
1 parent 8a43302
commit 70eff78
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Showing 5 changed files with 26 additions and 3 deletions.
diff --git a/.github/workflows/pr-linting.yml b/.github/workflows/pr-linting.yml
@@ -18,7 +18,8 @@ jobs:
     steps:
       - uses: docker://agilepathway/pull-request-label-checker:latest
         with:
-          any_of: Bug,✨ Feature,⚠️ Interface,📝 Docs,🔨 Maintenance,🖱️ DX
+          any_of: >-
+            🐛 Bug,✨ Feature,⚠️ Interface,📝 Docs,🔨 Maintenance,🖱️ DX
           none_of: Epic,❌ Won't fix,💫 Good first issue
           repo_token: ${{ secrets.GITHUB_TOKEN }}
 

diff --git a/docs/conf.py b/docs/conf.py
@@ -320,6 +320,7 @@ def get_version(package_name: str) -> str:
     "compwa-org": ("https://compwa-org.readthedocs.io", None),
     "constraint": ("https://labix.org/doc/constraint/public", "constraint.inv"),
     "graphviz": ("https://graphviz.readthedocs.io/en/stable", None),
+    "IPython": (f"https://ipython.readthedocs.io/en/{get_version('IPython')}", None),
     "jsonschema": ("https://python-jsonschema.readthedocs.io/en/stable", None),
     "mypy": ("https://mypy.readthedocs.io/en/stable", None),
     "pwa": ("https://pwa.readthedocs.io", None),

diff --git a/src/qrules/conservation_rules.py b/src/qrules/conservation_rules.py
@@ -182,6 +182,8 @@ def parity_conservation(
     l_magnitude: NodeQN.l_magnitude,
 ) -> bool:
     r"""Implement :math:`P_{in} = P_{out} \cdot (-1)^L`."""
+    if any(p is None for p in [*ingoing_edge_qns, *outgoing_edge_qns]):
+        return False
     if len(ingoing_edge_qns) == 1 and len(outgoing_edge_qns) == 2:
         parity_in = reduce(lambda x, y: x * y.value, ingoing_edge_qns, 1)
         parity_out = reduce(lambda x, y: x * y.value, outgoing_edge_qns, 1)

diff --git a/tests/channels/test_lc_to_p_km_pip.py b/tests/channels/test_lc_to_p_km_pip.py
@@ -6,6 +6,7 @@ def test_resonances():
     stm = StateTransitionManager(
         initial_state=["Lambda(c)+"],
         final_state=["p", "K-", "pi+"],
+        allowed_intermediate_particles=["Delta", "K", "Lambda"],
         mass_conservation_factor=0,
     )
     stm.set_allowed_interaction_types([InteractionType.STRONG], node_id=1)
@@ -23,6 +24,4 @@ def test_resonances():
         "Lambda(1810)",
         "Lambda(1800)",
         "Lambda(1890)",
-        "Sigma(1660)0",
-        "Sigma(1750)0",
     ]
diff --git a/tests/channels/test_y_to_d0_d0bar_pi0_pi0.py b/tests/channels/test_y_to_d0_d0bar_pi0_pi0.py
@@ -45,3 +45,23 @@ def test_full(formalism, n_solutions, particle_database):
     reaction = stm.find_solutions(problem_sets)
     assert len(reaction.transition_groups) == 1
     assert len(reaction.transitions) == n_solutions
+
+
+def test_resonance_filter(particle_database):
+    # https://github.com/ComPWA/qrules/issues/33
+    stm = StateTransitionManager(
+        initial_state=[("Y(4260)", [-1, +1])],
+        final_state=["D0", "D~0", "pi0", "pi0"],
+        allowed_intermediate_particles=["D"],
+        particle_db=particle_database,
+    )
+    stm.set_allowed_interaction_types([InteractionType.STRONG])
+    stm.add_final_state_grouping([["D0", "pi0"], ["D~0", "pi0"]])
+    problem_sets = stm.create_problem_sets()
+    result = stm.find_solutions(problem_sets)
+    assert set(result.get_intermediate_particles().names) == {
+        "D*(2007)0",
+        "D*(2007)~0",
+        "D(0)*(2300)0",
+        "D(0)*(2300)~0",
+    }