File: test_boost_p4.py

package info (click to toggle)
python-vector 1.6.3-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,984 kB
  • sloc: python: 40,200; makefile: 13
file content (64 lines) | stat: -rw-r--r-- 2,078 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
# Copyright (c) 2019-2025, Saransh Chopra, Henry Schreiner, Eduardo Rodrigues, Jonas Eschle, and Jim Pivarski.
#
# Distributed under the 3-clause BSD license, see accompanying file LICENSE
# or https://github.com/scikit-hep/vector for details.

from __future__ import annotations

import pytest

import vector.backends.numpy
import vector.backends.object


def test():
    vec = vector.backends.object.VectorObject4D(
        azimuthal=vector.backends.object.AzimuthalObjectXY(1, 2),
        longitudinal=vector.backends.object.LongitudinalObjectZ(3),
        temporal=vector.backends.object.TemporalObjectT(4),
    )
    p4 = vector.backends.object.MomentumObject4D(
        azimuthal=vector.backends.object.AzimuthalObjectXY(5, 6),
        longitudinal=vector.backends.object.LongitudinalObjectZ(7),
        temporal=vector.backends.object.TemporalObjectT(15),
    )
    out = vec.boost_p4(p4)
    assert out.x == pytest.approx(3.5537720741941676)
    assert out.y == pytest.approx(5.0645264890330015)
    assert out.z == pytest.approx(6.575280903871835)
    assert out.t == pytest.approx(9.138547120755076)

    for t1 in (
        "xyzt",
        "xythetat",
        "xyetat",
        "rhophizt",
        "rhophithetat",
        "rhophietat",
        "xyztau",
        "xythetatau",
        "xyetatau",
        "rhophiztau",
        "rhophithetatau",
        "rhophietatau",
    ):
        for t2 in (
            "xyzt",
            "xythetat",
            "xyetat",
            "rhophizt",
            "rhophithetat",
            "rhophietat",
            "xyztau",
            "xythetatau",
            "xyetatau",
            "rhophiztau",
            "rhophithetatau",
            "rhophietatau",
        ):
            tvec, tp4 = getattr(vec, "to_" + t1)(), getattr(p4, "to_" + t2)()
            out = tvec.boost_p4(tp4)
            assert out.x == pytest.approx(3.5537720741941676)
            assert out.y == pytest.approx(5.0645264890330015)
            assert out.z == pytest.approx(6.575280903871835)
            assert out.t == pytest.approx(9.138547120755076)