Place the rinsed split peas, diced ham, onion, carrots, celery, and garlic into the slow cooker.
Pour the chicken broth over the ingredients.
Add the smoked paprika, bay leaf, salt, and black pepper, then stir everything together.
Cover the slow cooker and cook on low for 7 hours until the peas are soft and the soup has thickened.
Remove the bay leaf before serving.