Struct PyMandelstam 

pub struct PyMandelstam(pub Mandelstam);

Mandelstam variables s, t, and u

By convention, the metric is chosen to be :math:(+---) and the variables are defined as follows (ignoring factors of :math:c):

.. math:: s = (p_1 + p_2)^2 = (p_3 + p_4)^2

.. math:: t = (p_1 - p_3)^2 = (p_4 - p_2)^2

.. math:: u = (p_1 - p_4)^2 = (p_3 - p_2)^2

Parameters

p1: list of int The indices of particles to combine to create :math:p_1 in the diagram p2: list of int The indices of particles to combine to create :math:p_2 in the diagram p3: list of int The indices of particles to combine to create :math:p_3 in the diagram p4: list of int The indices of particles to combine to create :math:p_4 in the diagram channel: {‘s’, ‘t’, ‘u’, ‘S’, ‘T’, ‘U’} The Mandelstam channel to calculate

Raises

Exception If more than one particle list is empty ValueError If channel is not one of the valid options

Notes

At most one of the input particles may be omitted by using an empty list. This will cause the calculation to use whichever equality listed above does not contain that particle.

By default, the first equality is used if no particle lists are empty.

Tuple Fields

0: Mandelstam

Trait Implementations

impl Clone for PyMandelstam

fn clone(&self) -> PyMandelstam

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'de> Deserialize<'de> for PyMandelstam

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'py> IntoPyObject<'py> for PyMandelstam

type Target = PyMandelstam

The Python output type

type Output = Bound<'py, <PyMandelstam as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl PyClass for PyMandelstam

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for PyMandelstam

const IS_BASETYPE: bool = false

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

const RAW_DOC: &'static CStr = /// Mandelstam variables s, t, and u /// /// By convention, the metric is chosen to be :math:`(+---)` and the variables are defined as follows /// (ignoring factors of :math:`c`): /// /// .. math:: s = (p_1 + p_2)^2 = (p_3 + p_4)^2 /// /// .. math:: t = (p_1 - p_3)^2 = (p_4 - p_2)^2 /// /// .. math:: u = (p_1 - p_4)^2 = (p_3 - p_2)^2 /// /// Parameters /// ---------- /// p1: list of int /// The indices of particles to combine to create :math:`p_1` in the diagram /// p2: list of int /// The indices of particles to combine to create :math:`p_2` in the diagram /// p3: list of int /// The indices of particles to combine to create :math:`p_3` in the diagram /// p4: list of int /// The indices of particles to combine to create :math:`p_4` in the diagram /// channel: {'s', 't', 'u', 'S', 'T', 'U'} /// The Mandelstam channel to calculate /// /// Raises /// ------ /// Exception /// If more than one particle list is empty /// ValueError /// If `channel` is not one of the valid options /// /// Notes /// ----- /// At most one of the input particles may be omitted by using an empty list. This will cause /// the calculation to use whichever equality listed above does not contain that particle. /// /// By default, the first equality is used if no particle lists are empty. ///

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type BaseType = PyAny

Base class

type ThreadChecker = SendablePyClass<PyMandelstam>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyClassNewTextSignature for PyMandelstam

const TEXT_SIGNATURE: &'static str = "(p1, p2, p3, p4, channel)"

impl PyClass__eq__SlotFragment<PyMandelstam> for PyClassImplCollector<PyMandelstam>

unsafe fn __eq__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__ge__SlotFragment<PyMandelstam> for PyClassImplCollector<PyMandelstam>

unsafe fn __ge__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__gt__SlotFragment<PyMandelstam> for PyClassImplCollector<PyMandelstam>

unsafe fn __gt__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__le__SlotFragment<PyMandelstam> for PyClassImplCollector<PyMandelstam>

unsafe fn __le__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl PyClass__lt__SlotFragment<PyMandelstam> for PyClassImplCollector<PyMandelstam>

unsafe fn __lt__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl<'a, 'holder, 'py> PyFunctionArgument<'a, 'holder, 'py, false> for &'holder PyMandelstam

type Holder = Option<PyClassGuard<'a, PyMandelstam>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'holder mut Self::Holder, ) -> PyResult<Self>

impl<'a, 'holder, 'py> PyFunctionArgument<'a, 'holder, 'py, false> for &'holder mut PyMandelstam

type Holder = Option<PyClassGuardMut<'a, PyMandelstam>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'holder mut Self::Holder, ) -> PyResult<Self>

impl PyMethods<PyMandelstam> for PyClassImplCollector<PyMandelstam>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PyMandelstam

const NAME: &'static str = "Mandelstam"

Class name.

const MODULE: Option<&'static str>

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.

impl Serialize for PyMandelstam

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl DerefToPyAny for PyMandelstam