Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

ENH: wrtite Barrier factor in TR029 #25

Open
wants to merge 5 commits into
base: main
Choose a base branch
from
Open

ENH: wrtite Barrier factor in TR029 #25

Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
69565ca
for issue https://github.com/ComPWA/report/issues/15
shenvitor Nov 8, 2024
32dd559
formate
shenvitor Nov 8, 2024
cad7d67
not hidden
shenvitor Nov 8, 2024
72c2a7a
for comment https://github.com/ComPWA/report/pull/25#discussion_r1834…
shenvitor Nov 12, 2024
cae072c
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 12, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 8 additions & 4 deletions docs/029/index.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@
},
"source": [
"::::{margin}\n",
":::{card} Definition of the normalized Blatt–Weisskopf form factor from Hankel functions of the first kind.\n",
":::{card} Definition of the normalized Blatt–Weisskopf form factor (barrier factor) from Hankel functions of the first kind.\n",
"TR-029\n",
"^^^\n",
"This report investigates how to implement [ComPWA/ampform#417](https://github.com/ComPWA/ampform/issues/417), where it was suggested to define the 'normalized' Blatt–Weisskopf function $B_L^2(z)$ from a Hankel function of the first kind, $h_l^{(1)}$.\n",
Expand Down Expand Up @@ -66,7 +66,11 @@
},
{
"cell_type": "markdown",
"metadata": {},
"metadata": {
"jupyter": {
"source_hidden": true
}
},
"source": [
"As of AmpForm [v0.15](https://github.com/ComPWA/ampform/releases/tag/0.15.1), the implementation of [`BlattWeisskopfSquared`](https://ampform.readthedocs.io/0.15.x/api/ampform.dynamics/#ampform.dynamics.BlattWeisskopfSquared) contains hard-coded polynomials, see implementation [here](https://github.com/ComPWA/ampform/blob/0.15.1/src/ampform/dynamics/__init__.py#L66-L134).\n",
"The motivation for this can be found in the citations mentioned in [its API documentation](https://ampform.readthedocs.io/0.15.x/api/ampform.dynamics/#ampform.dynamics.BlattWeisskopfSquared).\n",
Expand Down Expand Up @@ -111,7 +115,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"In the following, we call $F_\\ell(z)$ the _unnormalized_ Blatt–Weisskopf form factor.\n",
"In the following, we call $F_\\ell(z)$ the _unnormalized_ Blatt–Weisskopf form factor (barrier factor).\n",
"Following Chung and other resources (see e.g. {cite}`Chung:1995dx`, p. 415), AmpForm implements a unitless, _normalized_ Blatt–Weisskopf factor $B_L$, meaning that $B_L(1)=1$.[^3]\n",
"It can be defined in terms of $F_L$ as\n",
"\n",
Expand Down Expand Up @@ -323,7 +327,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"## Normalized Blatt–Weisskopf form factor"
"## Normalized Blatt–Weisskopf form factor (barrier factor)"
]
},
{
Expand Down
Loading